Tablas de conversión de unidades2. PREFIJOS DE UNIDADES SI
10n Prefijo Símbolo Escala corta Escala larga Equivalencia decimal en los Prefijos del SI
1024 yotta Y Septillón Cuatrillón 1 000 000 000 000 000 000 000 000
1021 zetta Z Sextillón Mil trillones 1 000 000 000 000 000 000 000
1018 exa E Quintillón Trillón 1 000 000 000 000 000 000
15
10 peta P Cuatrillón Mil billones 1 000 000 000 000 000
12
10 tera T Trillón Billón 1 000 000 000 000
9
10 giga G Billón Mil millones / Millardo 1 000 000 000
106 mega M Millón 1 000 000
103 kilo k Mil / Millar 1 000
2
10 hecto h Cien / Centena 100
1
10 deca da Diez / Decena 10
0
10 ninguno ninguno Uno / Unidad 1
10−1 deci d Décimo 0.1
10−2 centi c Centésimo 0.01
−3
10 mili m Milésimo 0.001
−6
10 micro µ Millonésimo 0.000 001
−9
10 nano n Billonésimo Milmillonésimo 0.000 000 001
10−12 pico p Trillonésimo Billonésimo 0.000 000 000 001
10−15 femto f Cuatrillonésimo Milbillonésimo 0.000 000 000 000 001
−18
10 atto a Quintillonésimo Trillonésimo 0.000 000 000 000 000 001
−21
10 zepto z Sextillonésimo Miltrillonésimo 0.000 000 000 000 000 000 001
−24
10 yocto y Septillonésimo Cuatrillonésimo 0.000 000 000 000 000 000 000 001
3. FUERZA Y PESO
DINA NEWTON LIBRA f POUNDAL GRAMO f Kg f KILOLIBRAS
1 DINA 1 10-5 2.248x10-6 7.233x10-5 1.02x10-3 1.02x10-6 2.248x10-9
1 NEWTON 105 1 0.2248 7.233 102 0.102 2.248x10-4
1 LIBRA f 4.448x105 4.448 1 32.173 453.6 0.4536 10-3
1 POUNDAL 1.383x104 0.1383 3.108x10-2 1 14.1 1.41x10-2 3.108x10-5
1 GRAMO f 980.7 9.807x10-3 2.205x10-3 7.093x10-2 1 0.001 2.205x10-6
1 Kg. f 9.807x105 9.807 2.205 70.93 1000 1 0.00205
1 KILOLIBRA 4.448x108 4448 1000 32173 4.536x105 453.6 1
1 DINA = 1 g·cm/s2 1 NEWTON = 1 kg·m/s2 1 POUNDAL = 1 lb·ft/s2
TIEMPO
AÑO DÍA HORA MINUTO SEGUNDO PICOSEGUNDO MES
1 AÑO 1 365.2 8.76x103 5.256x105 3.1536x107 3.1536x1019 12
1 DÍA 2.74x10-3 1 24 1.44x103 8.64x104 8.64x1016 0.032876
1 HORA 0.114x10-3 4.167x10-2 1 60 3.6x103 3.6x1015 1.36986x10-3
1 MINUTO 1.9x10-6 6.94x10-4 1.667x10-2 1 60 6x1013 2.2831x10-5
1 SEGUNDO 3.171x10-8 1.157x10-5 2.778x10-4 1.667x10-2 1 1x1012 3.8057x10-7
1 PICOSEGUNDO 3.17x10-20 1.1570x10-17 2.778x10-16 1.667x10-14 1x10-12 1 3.8057x10-19
1 MES 0.08333 30.41666 730 43800 2.6283x106 2.6283x1018 1
ÁNGULO PLANO ÁNGULO SÓLIDO
Circunferencia
Radián Grado sex (°) Minuto sex (‘) Segundo sex (“)
=Rev = Ciclo
1 Revolución 1 6.2832 – 2π 360 21600 1296000 1 esfera =
1 Radián 0.15915 1 57.296 3437.75 206260 4π sr (Estereorradianes)
1 Grado sex (°) 0.002778 0.017453 1 60 3600 12.57 Estereorradianes
1 Minuto sex (‘) 0.0000463 2.9x10-4 0.01667 1 60
1 Segundo sex (“) 7.716x10-7 4.848x10-6 2.778x10-4 1.667x10-2 1
ACELERACIÓN LINEAL
2 2 2
cm/s m/s m/s·min km/s·h pie/s mi/s·hora milla/min·h
2
1 cm/s 1 10-2 0.6 0.036 0.03281 0.02237 1.3422
2
1 m/s 102 1 60 3.6 3.281 2.237 134.22
1 m/s·min 1.667 1.667x10-2 1 0.06 5.468x10-2 0.0373 2.238
1 km/s·h 27.78 0.2778 16.67 1 0.9113 0.6214 37.28
2
1 pie/s 30.489 0.30489 18.2901 1.09719 1 0.6818 40.92
1 milla/s·hora 44.704 0.44704 26.8261 1.60925 1.467 1 60
1 milla/min·h 0.74507 0.0074507 0.4470 0.02682 0.024437 0.01667 1
ACELERACIÓN ANGULAR
2 2 2 2
rad/s rev/s·min rev/min rev/s rad/min
2
1 rad/s 1 9.549 572.96 0.1592 3600
1 rev/s·min 0.1042 1 60 0.01667 375.2
2
1 rev/min 0.0017453 0.01667 1 2.778x10-4 6.2832
2
1 rev/s 6.2832 60 3600 1 22625.8
2
1 rad/min 2.777x10-4 2.665x10-3 0.159868 4.44x10-5 1
4. LONGITUD
mi M
mam km hm dam m dm cm mm μ Å mμ X Pie yarda plg mil
terrestre Inter.
1 miriámetro 1 10 102 103 104 105 106 107 1010 1014 1013 1017 32810 10940 3.93x105 6.214 5.396 3.93x108
1 kilómetro 10-1 1 10 102 103 104 105 106 109 1013 1012 1016 3281 1094 39370 0.6214 0.5396 3.93x107
1 hectómetro 10-2 0.1 1 10 100 1000 104 105 108 1012 1011 1015 328.1 109.36 3937 0.06214 0.05396 3.93x106
1 decámetro 10-3 0.01 0.1 1 10 100 1000 10000 107 1011 1010 1014 32.81 10.936 393.7 6.21x10-3 5.39x10-3 3.93x105
1 metro 10-4 10-3 10-2 10-1 1 10 102 103 106 1010 109 1013 3.281 1.094 39.37 6.21x10-4 5.39x10-4 3.93x104
1 decímetro 10-5 10-4 0.001 0.01 0.1 1 10 100 105 109 108 1012 0.3281 0.1094 3.937 6.214x10-5 5.396x10-5 3937
1 centímetro 10-6 10-5 10-4 10-3 10-2 10-1 1 10 104 108 107 1011 0.03281 0.01094 0.3937 6.214x10-6 5.39x10-6 393.7
1 milímetro 10-7 10-6 10-5 10-4 10-3 10-2 10-1 1 103 107 106 1010 3.281x10-3 1.094x10-3 3.937x10-2 6.214x10-7 5.396x10-7 39.37
1 micra ó
10-10 10-9 10-8 10-7 10-6 10-5 10-4 10-3 1 104 103 107 3.28x10-6 1.094x10-6 3.93x10-5 6.214x10-10 5.39x10-10 0.0393
micrón
1 angstrom 10-14 10-13 10-12 10-11 10-10 10-9 10-8 10-7 10-4 1 0.1 103 3.28x10-10 1.094x10-10 3.937x10-9 6.214x10-14 5.39x10-14 3.93x10-6
1 milimicra ó
10-13 10-12 10-11 10-10 10-9 10-8 10-7 10-6 10-3 10 1 104 3.28x10-9 1.094x10-9 3.937x10-8 6.214x10-13 5.39x10-13 3.93x10-5
milimicrón
1 unidad X 10-17 10-16 10-15 10-14 10-13 10-12 10-11 10-10 10-7 10-3 10-4 1 3.28x10-13 1.094x10-13 3.937x10-12 6.21x10-17 5.39x10-17 3.93x10-9
1 pie 3.048x10-5 3.048x10-4 0.003048 0.03048 0.3048 3.048 30.48 304.8 3.048x105 3.048x109 3.048x108 3.04x1012 1 0.3333 12 1.894x10-4 1.644x10-4 1.2x104
1 yarda 9.144x10-5 9.144x10-4 0.009144 0.09144 0.9144 9.144 91.44 914.4081 9.144x105 9.144x109 9.144x108 9.144x1012 3 1 36 5.681x10-4 4.937x10-4 3.6x104
1 pulgada 2.54x10-6 2.54x10-5 2.54x10-4 0.00254 0.0254 0.254 2.54 25.4 2.54x104 2.54x108 2.54x107 2.54x1011 0.08333 0.02777 1 1.578x10-5 1.37x10-5 103
1 milla
0.1609 1.609 16.09 160.9 1609 1.609x104 1.609x105 1.609x106 1.609x109 1.609x1013 1.609x1012 1.609x1016 5280 1760 6.33x104 1 0.8683 6.33x107
terrestre
1 milla náutica
0.1852 1.852 18.52 185.2 1852 1.852x104 1.852x105 1.852x106 1.852x109 1.852x1013 1.852x1012 1.852x1016 6076.1 2026 7.29x104 1.151 1 7.291x107
internacional
12 13 -3
1 AÑO LUZ = 9.4600x10 km 1 PARSEC = 3.084x10 km 1 BRAZA = 6 Pies 1 PÉRTIGA = 16.5 Pies 1 mil = 10 Pulgadas
1 LEGUA = 3 millas 1 FURLONG = 660 Pies 1 CADENA = 66 Pies 1 ROD = 16.5 Pies
5. SUPERFICIE
Mili = plg
km2 hm2 dam2 m2 cm2 mm2 plg2 ft2 yd2 Acre
circular
1 kilometro cuadrado 1 102 104 106 1010 1012 1.55x109 1.0764x107 1.196x106 247.104 1.974x1015
1 hectómetro cuadrado 10-2 1 102 104 108 1010 1.55x107 1.076x105 1.196x104 2.471 1.973x1013
1 decámetro cuadrado
10-4 10-2 1 102 106 108 1.55x105 1.0764x103 1.196x102 0.02471 1.973x1011
ó 1 Área
1 metro cuadrado 10-6 10-4 10-2 1 104 106 1550 10.764 1.196 2.471x10-4 1.973x109
1 centímetro cuadrado 10-10 10-8 10-6 10-4 1 102 0.155 1.0764x10-3 1.196x10-4 2.471x10-8 1.973x105
1 milímetro cuadrado 10-12 10-10 10-8 10-6 10-2 1 1.55x10-3 1.0764x10-5 1.196x10-6 2.471x10-10 1.973x103
1 pulgada cuadrada 6.45x10-10 6.455x10-8 6.455x10-6 6.45x10-4 6.452 6.452x102 1 6.944x10-3 7.716x10-4 1.594x10-7 1.2729x106
1 pie cuadrado 9.29x10-8 9.2903x10-6 9.2903x10-4 9.29x10-2 929.03 9.29x104 144 1 0.11111 2.29568x10-5 1.833x108
1 yarda cuadrada 8.361x10-7 8.361x10-5 8.361x10-3 0.8361 8.361x103 8.361x105 1.296x103 9 1 2.0661x10-4 1.6493x109
1 Acre 4.04687x10-3 0.40468 40.47 4046.87 4.047x107 4.047x109 6.272x106 43360 4840 1 8x1012
1 mili = plg circular 5.0671x10-16 5.0671x10-14 5.0671x10-12 5.0671x10-10 5.0671x10-6 5.0671x10-4 7.854x10-7 5.454x10-9 6.061x10-10 1.25x10-13 1
1 milla cuadrada 2.59 259x102 2.59x104 2.59x106 2.59x1010 2.59x1012 4x109 2.7878x107 3.096x106 640 5.1113x1015
1 Barn 10-34 10-32 10-30 10-28 10-24 10-22 1.54x10-25 1.076x10-27 1.196x10-28 2.471x10-32 1.973x10-19
6. VOLUMEN CAPACIDAD GASTO
Litro
km3 hm3 dam3 m3 kl hl dal dl cl cm3 mm3 ft3 plg3 yd3 galón fl Oz
dm3
1 kilometro
1 103 106 109 109 1010 1011 1012 1013 1014 1015 1018 3.5315x1010 6.1023x1013 1.3076x109 2.642x1011 3.382x1013
cúbico
1 hectómetro
0.001 1 103 106 106 107 108 109 1010 1011 1012 1015 3.531x107 6.1023x1010 1.3078x106 2.642x108 3.381x1010
cúbico
1 decámetro
10-6 0.001 1 103 1000 104 105 106 107 108 109 1012 3.531x104 6.102x107 1307.8 2.642x105 3.381x107
cúbico
1 metro
10-9 10-6 10-3 1 1 10 100 1000 104 105 106 109 35.315 6.1023x104 1.3078 264.2 33820
cúbico
1 kilolitro 10-9 10-6 10-3 1 1 10 100 1000 104 105 106 109 35.315 6.1023x104 1.3078 264.2 33820
1 hectolitro 10-10 10-7 10-4 0.1 0.1 1 10 100 1000 104 105 108 3.531 6102 0.13078 26.42 3382
1 decalitro 10-11 10-8 10-5 0.01 0.01 0.1 1 10 100 1000 104 107 0.3531 610.2 0.013078 2.642 338.2
1 litro 10-12 10-9 10-6 10-3 10-3 0.01 0.1 1 10 100 1000 106 0.035315 61.102 1.3076x10-3 0.2642 33.82
1 decilitro 10-13 10-10 10-7 10-4 10-4 10-3 0.01 0.1 1 10 100 105 3.5315x10-3 6.1023 1.3078x10-4 0.02642 3.382
1 centilitro 10-14 10-11 10-8 10-5 10-5 10-4 10-3 0.01 0.1 1 10 104 3.5315x10-4 0.61023 1.3078x10-5 2.642x10-3 0.3388
1 centímetro
10-15 10-12 10-9 10-6 10-6 10-5 10-4 10-3 0.01 0.1 1 103 3.5315x10-5 6.1023x10-2 1.3078x10-6 2.642x10-4 0.03382
cúbico
1 milímetro
10-18 10-15 10-12 10-9 10-9 10-8 10-7 10-6 10-5 10-4 10-3 1 3.5315x10-8 6.1023x10-5 1.3078x10-9 2.642x10-7 3.382x10-5
cúbico
1 pie cúbico 2.832x10-11 2.832x10-8 2.832x10-5 2.832x10-2 2.832x10-2 0.2832 2.832 28.32 283.2 2832 2.832x104 2.832x107 1 1728 0.03703 7.482 957.63
1 pulgada
1.639x10-14 1.639x10-11 1.639x10-8 1.639x10-5 1.639x10-5 1.639x10-4 1.639x10-3 1.639x10-2 0.1639 1.639 16.39 1.639x104 5.787x10-4 1 2.143x10-5 4.3302x10-3 0.54222
cúbica
7.64559 7.64559
1 yarda cúbica 7.645x10-7 7.645x10-4 0.764559 0.764559 7.645 76.45 764.5 7645.59 76455.9 7.645x108 27 4.665x104 1 202 25851
x10-10 x105
1 Galón
3.785x10-12 3.785x10-9 3.785x10-6 0.003785 0.003785 3.785x10-2 0.3785 3.7854 37.853 378.53 3785 3.785x106 0.1336 231 4.9503x10-3 1 127.98
U.S.A.
1 onza líquida
2.957x10-14 2.957x10-11 2.957x10-8 2.957x10-5 2.957x10-5 2.957x10-4 2.957x10-3 0.02957 0.2957 2.957 29.57 2.957x104 1.0443x10-3 1.90469 3.8677x10-5 7.8132x10-3 1
U.S.A.
7. VELOCIDAD LINEAL
M/h
cm/s m/s m/min km/min km/h mi/min mi/h ft/s ft/min yarda/h plg/s mach
ó nudo
1 cm/s 1 10-2 0.6 0.0006 0.036 3.728x10-4 0.02237 0.01944 0.03281 1.9685 39.40 0.3937 3x10-5
1 m/s 100 1 60 0.06 3.6 0.03728 2.237 1.944 3.281 196.8 3940 39.37 0.003
1 m/min 1.667 0.01667 1 0.001 0.06 6.213x10-4 0.03728 0.03238 0.05468 3.281 65.61 0.6562 5x10-5
1 km/min 1666.7 16.66 1000 1 60 0.6215 37.284 32.4 54.678 3280.8 65616 656.16 0.05
1 km/h 27.78 0.2778 16.67 0.01666 1 0.01035 0.6214 0.540 0.9113 54.68 1094.2 10.936 8.333x10-4
1 milla/min 2682 26.82 1609 1.609 96.56 1 60 52.104 88 5280 1.06x10-5 1056 0.08045
1 millas/h
44.70 0.4470 26.82 0.02682 1.609 0.01667 1 0.8684 1.467 88 1760.6 17.60 1.340x10-3
mph
1 milla náutica/h
51.48 0.5148 30.864 0.03086 1.853 0.01919 1.151 1 1.689 101.26 2027 20.2568 1.543x10-3
ó nudo
1 ft/s 30.48 0.3048 18.29 0.01829 1.0973 0.01136 0.6818 0.5921 1 60 1200 12 9.141x10-4
1 ft/min 0.5080 0.00508 0.3048 3.048x10-4 0.01829 1.894x10-4 0.011363 9.8715x10-3 0.01667 1 20.0216 0.200 1.52x10-5
1 yarda/h 0.0254 2.54x10-4 0.015241 1.52x10-5 9.1436x10-4 9.4x10-6 5.6818x10-4 4.937x10-4 8.333x10-4 0.05 1 10-2 7.619x10-7
1 plg/s 2.540 0.0254 1.5241 0.001524 0.09143 9.469x10-4 0.05682 0.04937 0.08333 5 100 1 7.61x10-5
1 mach 33333 333.33 2x104 20 1200 12.432 745.8 647.726 1094.09 65620 1.31x10-6 1.31x104 1
8. CAUDAL O FLUJO DE VOLUMEN
cm3/s m3/s m3/min m3/h l/s l/min ft3/s ft3/min Lb de H2O/min Gal/s Gal/min
1 cm3/s 1 10-6 6x10-5 3.6x10-3 10-3 0.06 3.531x10-5 0.00212 0.132164 2.641x10-4 0.01585
1 m3/s 106 1 60 3.6x103 103 6x104 35.31 2.12x103 1.3216x105 264 15850
3
1 m /min 1.667x104 1.66x10-2 1 60 16.67 103 0.5886 35.287 2204 4.403 264.1
1 m3/ h 278 2.78x10-4 0.1667 1 0.278 16.67 9.81x10-3 0.588 36.7516 7.341x10-2 4.4046
1 l/s 103 10-3 0.06 3.6 1 60 3.5329x10-2 2.12 132.2 0.2641 15.85
1 l/min 16.67 1.667x10-5 10-3 0.06 1.667x10-2 1 5.886x10-4 3.53x10-2 2.204 4.403x10-3 0.2642
1 ft3/s 2.832x104 2.832x10-2 1.69916 101.95 28.32 1699.3 1 60 3745.9 7.48 448.83
1 ft3/min 472 4.720x10-4 2.832x10-2 1.6992 0.4720 28.32 1.667x10-2 1 62.4 0.1247 7.482
1 Lb de H2O/min 7.56 7.561x10-6 4.536x10-4 2.72x10-2 0.007566 0.454 2.669x10-4 1.601x10-2 1 2x10-3 0.12
1 Gal/s 3.782x103 3.785x10-3 0.22713 13.627 3.785 227.1 0.133671 8.019 500.7 1 60
1 Gal/min 63.083 6.308x10-5 3.7848x10-3 0.2271 0.0630 3.785 0.002228 0.1336 8.345 0.01667 1
1 cm3/min 0.01667 1.667x10-8 10-6 6x10-5 1.667x10-5 10-3 5.886x10-7 3.528x10-5 2.204x10-3 4.403x10-6 2.641x10-4
1 l/h 0.278 2.78x10-7 1.667x10-5 10-3 2.78x10-4 0.01667 9.81x10-6 5.883x10-4 0.03675 7.341x10-5 4.4046x10-3
1 yd3/min 1.274x104 1.274x10-2 0.7646 45.87 12.74 7.646x102 0.45 27 1685.6 3.367 202
9. MASA
tonelada tonelada tonelada
μg mg cg dg g dag hg kg mag U.T.M. U.M.A. SLUG Oz lb grano
métrica corta larga
1.1023 9.8425
1 microgramo 1 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-12 1.02x10-10 6.022x1017 6.854x10-11 3.527x10-8 2.2045x10-9 1.543x10-5
x10-12 x10-13
9.8425
1 miligramo 103 1 0.1 0.01 10-3 10-4 10-5 10-6 10-7 10-9 1.02x10-7 6.022x1020 6.854x10-8 3.527x10-5 2.2045x10-6 1.1023x10-9 0.015430
x10-10
9.8425
1 centigramo 104 10 1 0.1 0.01 0.001 10-4 10-5 10-6 10-8 1.02x10-6 6.022x1021 6.854x10-7 3.5273x10-4 2.2046x10-5 1.1023x10-8 0.1543236
x10-9
1 decigramo 105 100 10 1 0.1 10-2 0.001 10-4 1x10-5 10-7 1.02x10-5 6.022x1022 6.854x10-6 3.5273x10-3 2.2045x10-4 1.1023x10-7 9.8425x10-8 1.543236
3.52739 9.84205
1 gramo 106 1000 100 10 1 0.1 10-2 10-3 10-4 10-6 1.02x10-4 6.024x1023 6.852x10-5 2.2046x10-3 1.1023x10-6 15.43
x10-2 x10-7
1 decagramo 107 104 103 100 10 1 0.1 0.01 10-3 10-5 1.02x10-3 6.022x1024 6.854x10-4 0.3527395 0.022046 1.1023x10-5 9.8425x10-6 154.3236
9.8425
1 hectogramo 108 105 104 1000 100 10 1 0.1 10-2 10-4 1.02x10-2 6.022x1025 6.854x10-3 3.527395 0.22046 1.1023x10-4 1543.236
x10-5
9.84205
1 kg 109 106 105 1x104 103 100 10 1 0.1 10-3 0.102 6.024x1026 0.06852 35.27 2.2045 1.023x10-3 15430
x10-4
1 miriagramo 1010 107 106 105 10000 1000 100 10 1 10-2 1.02 6.022x1027 0.6854 352.7395 22.04622 0.011023 9.8425x10-3 154323.6
1 tonelada
1012 109 108 107 106 105 104 1000 100 1 102 6.024x1029 68.52 3.5273x104 2204.6 1.1023 0.98425 1.5432x107
métrica
1 U.T.M. 9.81x109 9.81x106 9.81x105 9.81x104 9810 981 98.1 9.81 0.981 9.81x10-3 1 5.913x1027 0.6724 346.031 21.6269 0.0108134 9.6555x10-3 151388
1.63385 2.5624
1 U.M.A. 1.66x10-18 1.66x10-21 1.66x10-22 1.66x10-23 1.660x10-24 1.66x10-25 1.66x10-26 1.66x10-27 1.66x10-28 1.66x10-30 1.692x10-28 1 1.137x10-28 5.855x10-26 3.66x10-27 1.829x10-30
x10-30 x10-23
1 SLUG 1.459x1010 1.459x107 1.459x106 1.459x105 1.459x104 1459 145.9 14.59 1.459 1.459x10-2 1.4872 8.789x1027 1 514.8 32.174 1.609x10-2 1.436x10-2 225154
1 onza 2.79035
2.835x107 28350 2835 283.5 28.35 2.835 0.2835 0.02835 0.002835 2.835x10-5 0.00288 1.708x1025 0.001943 1 0.0625 3.125x10-5 437.5
Avoir dupois x10-5
1 libra 4.46456
4.536x108 453600 4.536x104 4536 453.6 45.36 4.536 0.4536 0.04536 4.536x10-4 0.04623 2.732x1026 0.03108 16 1 0.0005 7000
Avoir dupois x10-4
1 tonelada
corta 9.072x1011 9.072x108 9.072x107 9.072x106 9.072x105 9.072x104 9072 907.2 90.72 0.907185 92.477 5.465x1029 62.16 32000 2000 1 0.892913 1.40x107
U.S.A.
1 tonelada 6.120481
1.016x1012 1.1016x109 1.016x108 1.016x107 1.016x106 1.016x105 10160 1016 101.6 1.016047 103.56 69.634 3.584x104 2240 1.120 1 1.5679x107
larga inglesa x1029
3.90606 1.42857
1 grano 6.48x104 64.80 6.48 0.648 0.0648 6.48x10-3 6.48x10-4 6.48x10-5 6.48x10-6 6.48x10-8 6.605x10-6 4.4412x10-6 2.2857x10-3 7.1428x10-8 6.3779x10-8 1
x1022 x10-4
10. PRESIÓN
2
BARIA PASCAL kp/cm TORR cmH2O Ton mt/
MILIBAR BAR kp/m2 ATM m.c.a. plgH2O cmHg lb/plg2 lb/ft2 plgHg ftH2O gf/cm2 kp/mm2
Dina/cm2 N/m2 kgf/cm2 mmHg a 4°C m2
1 BARIA 1.01974 1.01974
1 0.1 10-3 10-6 0.0102 9.87x10-7 1.02x10-6 7.5x10-4 1.02x10-5 4.015x10-4 7.501x10-5 1.45x10-5 2.089x10-3 2.953x10-5 3.346x10-5 1.02x10-5 1.02x10-8
Dina/cm2 x10-3 x10-3
1 PASCAL 1.01974 1.01974
10 1 10-2 10-5 0.102 9.87x10-6 1.02x10-5 7.5x10-3 1.02x10-4 4.015x10-3 7.501x10-4 1.45x10-4 2.089x10-2 2.953x10-4 3.346x10-4 1.02x10-4 1.02x10-7
N/m
2
x10-2 x10-2
1 MILIBAR 1000 100 1 10-3 10.20 9.87x10-4 1.02x10-3 0.75 0.0102 0.4015 0.07501 0.0145 2.089 0.02953 0.03346 1.02 1.02 0.0102 1.02x10-5
1 BAR 106 105 103 1 1.02x104 0.987 1.02 750 10.2 401.85 75.043 14.512 2089.86 29.545 33.475 1019.37 1019.37 10.2 0.0102
1 Kilopondio
98.1 9.81 0.0981 9.8x10-5 1 9.68x10-5 10-4 0.0736 10-3 3.936x10-2 7.35x10-3 1.422x10-3 0.2048 2.89x10-3 3.281x10-3 0.1 0.1 10-3 10-6
m2
1 atmósfera 1.013x106 1.013x105 1.013x103 1.013 1.033x104 1 1.033 760 10.33 406.98 76 14.7 2.1172x103 29.92 33.92 1033.2 1033.2 10.33 0.01033
1 Kilopondio
9.81x105 9.81x104 981 0.981 104 0.968 1 736 10 393.97 73.57 14.22 2.048x103 28.96 32.81 103 103 10 10-2
cm2
1 TORR
1.33x103 133 1.33 1.33x10-3 13.6 1.31x10-3 1.36x10-3 1 1.36x10-2 0.5353 0.1 1.934x10-2 2.7844 3.936x10-2 4.46x10-2 1.3595 1.3595 1.36x10-2 1.36x10-5
ó mmHg
1 m columna
9.81x104 9.81x103 98.1 9.81x10-2 103 9.68x10-2 0.1 73.6 1 39.389 7.357 1.4229 204.86 2.895 3.285 100 100 1 10-3
de agua
1 plgH2O
2491 249.1 2.491 2.49x10-3 25.392 2.458x10-3 2.49x10-3 1.6679 0.02538 1 0.1868 3.613x10-2 5.202 0.07355 8.344x10-2 2.54 2.54 0.0254 2.54x10-5
a 4°C
1 cmHg
1.33x104 1333 13.30 1.33x10-2 136 1.316x10-2 1.33x10-2 9.994 0.1357 5.353 1 0.1934 27.81 0.3936 0.4461 13.57 13.57 0.136 1.359x10-4
a 0°C
1 lb/plg2
6.895x104 6.895x103 68.95 6.589x10-2 703.1 6.805x10-2 7.026x10-2 51.57 0.7018 27.66 5.171 1 144 2.038 2.307 70.307 70.307 0.7026 7.026x10-4
PSI
1 lb/ft2 478.8 47.88 0.4788 4.788x10-4 4.8807 4.725x10-4 4.788x10-4 0.3586 4.87x10-3 0.1922 3.591x10-2 6.944x10-3 1 0.01414 0.01602 0.48824 0.48824 4.884x10-3 4.884x10-6
1 plgHg 3.386x104 3.386x103 33.86 0.03386 345.3 0.03342 0.03453 25.36 0.3445 13.6 2.5416 0.4915 70.73 1 1.133 34.53 34.53 0.345 3.453x10-4
1 ftH2O 2.939x104 2.939x103 29.69 0.02939 299.778 0.0295 0.03048 22.37 0.3039 12 2.2417 0.4335 62.43 0.8826 1 30.48 30.48 0.3048 3.048x10-4
1 gf/cm2 980.638 98.0638 0.9806 9.808x10-4 10 9.679x10-4 10-3 0.73556 9.99x10-3 0.39363 0.07353 0.01422 2.0482 0.02894 0.0328 1 1 0.01 10-5
1 cmH2O
980.638 98.0638 0.9806 9.808x10-4 10 9.679x10-4 10-3 0.73556 9.99x10-3 0.39363 0.07353 0.01422 2.0482 0.02894 0.0328 1 1 0.01 10-5
a 4°C
1 Ton métrica
9.81x104 9.81x103 98.1 0.098 1000 0.0968 0.1 73.6 1 39.36 7.35 1.422 204.80 2.89 3.281 100 100 1 10-3
m2
1 Kilopondio
9.81x107 9.81x106 9.81x104 98 106 96.8 100 7.36x104 103 39360 7350 1422 204800 2890 3281 105 105 103 1
mm2
11. TRABAJO ENERGÍA CALOR
Megatón
ERG J kpm cal l·atm kW·h CV·h eV B.T.U. ft·lbf Hp·h MeV Kg UMA ft3·lbf/plg2 TNT
5.12274
1 ERGIO 1 10-7 1.02x10-8 2.389x10-8 9.87x10-10 2.778x10-14 3.77x10-14 6.242x1011 9.481x10-11 7.376x10-8 3.725x10-14 6.242x105 1.113x10-24 670.5 2.39x10-23
x10-10
5.12339
1 JOULE 107 1 0.102 0.2389 9.87x10-3 2.778x10-7 3.77x10-7 6.242x1018 9.481x10-4 0.7376 3.725x10-7 6.242x1012 1.113x10-17 6.705x109 2.39x10-16
x10-3
1.1091
1 kilográmetro 9.81x107 9.81 1 2.343 0.0968 2.72x10-6 3.7x10-6 6.37x1019 9.294x10-3 7.233 3.652x10-6 6.12x1013 6.575x1010 5.0224x10-2 2.35x10-15
x10-16
2.14302
1 caloría 4.186x107 4.186 0.427 1 0.0413 1.63x10-6 1.58x10-6 2.62x1019 3.968x10-3 3.087 1.559x10-6 2.613x1013 4.659x10-17 2.807x1010 10-15
x10-2
3.77452
1 litro·atm 1.013x109 101.323 10.33 24.2 1 2.814x10-5 3.82x10-5 6.33x1020 0.0960417 74.735 6.33x1014 1.13x10-15 6.80x1011 0.519459 2.42x10-14
x10-5
1 kW·hora 3.6x1013 3.6x106 3.67x105 8.6x105 3.55x104 1 1.36 2.247x1025 3413 2.655x106 1.341 2.247x1019 4.007x10-11 2.414x1016 18439.3 8.62x10-10
1 caballo de vapor
2.66x1013 2.65x106 2.7x105 6.32x105 2.61x104 0.736 1 1.65x1025 2.506x103 1.95x106 0.98696 1.65x1019 2.94x10-11 1.77x1016 1.3542x104 6.34x10-10
· hora
1 electronvoltio 1.622x10-12 1.602x10-19 1.63x10-20 3.827x10-20 1.58x10-21 4.45x10-26 6.04x10-26 1 1.519x10-22 1.182x10-19 5.965x10-26 10-6 1.783x10-36 1.074x10-9 8.208x10-22 3.83x10-35
1 B.T.U. 1.055x1010 1055 107.6 252 10.41215 2.930x10-4 3.98x10-4 6.585x1021 1 777.9 3.929x10-4 6.585x1015 1.174x10-14 7.074x1012 5.40386 2.52x10-13
5.11684
1 pie · libra fuerza 1.356x107 1.356 0.1383 0.3239 1.339x10-2 3.766x10-7 8.464x1018 1.285x10-3 1 5.051x10-7 8.464x1012 1.509x10-17 9.092x109 6.9444x10-3 3.24x10-16
x10-7
1 caballo de 6.41617 2.64935
2.685x1013 2.685x106 2.738x105 0.745701 1.01 1.676x1025 2545 1.980x106 1 1.676x1019 2.988x10-11 1.8x1016 13750 6.42x10-10
fuerza · hora x105 x104
1 mega 8.2084
1.602x10-6 1.602x10-13 1.63x10-14 3.821x10-14 1.58x10-15 4.45x10-20 6.04x10-20 106 1.519x10-16 1.182x10-13 5.965x10-20 1 1.786x10-30 1.074x10-3 3.83x10-29
electronvoltio x10-16
1 kg (equivalente 3.3927 4.60463
8.987x1023 8.987x1016 9.164x1015 2.147x1016 8.8719x1014 2.497x1010 5.610x1035 8.521x1013 6.629x1016 3.348x1010 5.610x1029 1 6.025x1026 21.49
energía) x1010 x1014
1 unidad de masa 1.52089 5.6318 7.6464
1.492x10-3 1.492x10-10 3.564x10-11 1.472x10-12 4.145x10-17 9.31x108 1.415x10-13 1.1x10-10 5.558x10-17 931.0 1.660x10-27 1 3.57x10-26
atómica x10-11 x10-17 x10-13
1 pie3 lb fuerza 1.95236 1.21993 2.1723
195.238 19.9087 46.663 1.926757 5.4232x10-5 7.3686x10-5 0.1850529 144 7.2727x10-5 1.2192x1015 1.309x1012 1 4.67x10-14
plg2 x109 x1021 x10-15
1 Megatón de
4.18x1022 4.18x1015 4.26x1014 1015 4.13x1013 1.16x109 1.58x109 2.61x1034 3.96x1012 3.08x1015 1.56x109 2.61x1028 4.65x10-2 2.80x1025 2.14x1013 1
TNT
12. POTENCIA
kpm/s
W kw MW cal/s kcal/s kcal/min BTU/h lb·ft/min lb·ft/s hp ergio/s CV
kgm/s
1 watt 1 10-3 10-6 0.2389 2.389x10-4 0.0143 3.413 44.25 0.7376 0.001341 107 0.102 1.36x10-3
1 kilowatt 1000 1 10-3 238.9 0.2389 14.3 3413 44250 737.6 1.341 1010 102 1.36
1 megawatt 106 103 1 2.38x105 238.9 1.43x104 3.413x106 4.425x107 7.37x105 1341 1013 1.02x105 1360
1 caloría
4.186 4.186x10-3 4.186x10-6 1 10-3 0.06 14.29 185.2 3.087 5.613x10-3 4.186x107 0.427 0.00569
s
1 kcal/s 4186 4.186 4.186x10-3 103 1 60 1.429x104 1.852x105 3087 5.613 4.186x1010 427 5.69
1 kcal/min 69.8 0.0698 6.98x10-5 16.67 0.01667 1 238.16 3086 51.45 0.0935 6.98x108 7.11 0.0949
1 unidad térmica
0.293 2.93x10-4 2.93x10-7 0.07 7x10-5 0.0042 1 12.97 0.2161 3.929x10-4 2.93x106 0.02989 3.983x10-4
británica
1 lb·ft/min 0.0226 2.26x10-5 2.26x10-8 5.3993x10-3 5.3995x10-6 3.24x10-4 0.07713 1 0.01667 3.03x10-5 2.26x105 2.305x10-3 3.07x10-5
1 lb·ft/s 1.356 0.001356 1.356x10-6 0.3239 3.239x10-4 0.01943 4.628 60 1 1.878x10-3 1.356x107 0.1381 1.843x10-3
1 caballo de
745.7 0.7457 7.457x10-4 178.2 0.1782 10.692 2545 3.3x104 550 1 7.45x109 76.07 1.014
fuerza
1 ergio/s 10-7 10-10 10-13 2.389x10-8 2.389x10-11 1.433x10-9 3.413x10-7 4.425x10-6 7.376x10-8 1.341x10-10 1 1.02x10-8 1.36x10-10
1 kgm/s ó
9.81 9.81x10-3 9.81x10-6 2.343 2.343x10-3 0.141 33.48 434 7.234 0.01314 9.81x107 1 0.0133
kpm/s
1 caballo de
736 0.736 7.36x10-4 1.757x102 0.1757 10.54 2.511x103 32566 542.7 0.986 7.36x109 75 1
vapor
13. CAPACITANCIA
CARGA ELÉCTRICA
a
abfarad FARADS μf statfarad
abcoulomb amp-h COUL faraday statcoulomb
1 abfarad
1 abcoulomb 1 109 1015 8.987x1020
1 2.778x10-3 10 1.036x10-4 2.998x1010 (1 uem)
(1 uem)
1 ampere- 1 FARAD 10-9 1 106 8.987x1011
360 1 3600 3.730x10-2 1.079x1013
hora
1 microfarad 10-15 10-6 1 8.987x105
1 COULOMB 0.1 2.778x10-4 1 1.036x10-5 2.998x109
1 statfarad
1.113x10-21 1.113x10-12 1.113x10-6 1
1 faraday 9652 26.81 9.652x104 1 2.893x1014 (1 ues)
1statcoulomb INDUCTANCIA
3.336x10-11 9.266x10-14 3.336x10-10 3.456x10-15 1
(1 ues)
-9 abhenry HENRY μh mh stathenry
1 carga del electrón = 1.602 x10 coulomb
1 abhenry
1 10-9 0.001 10-6 1.113x10-21
(1 uem)
CORRIENTE ELÉCTRICA 1 HENRY 109 1 106 1000 1.113x10-12
abampere AMPERE statampere 1 microhenry 1000 10-6 1 0.001 1.113x10-18
1 abampere
1 10 2.998x10-12 1 milihenry 106 0.001 1000 1 1.113x10-15
(1 uem)
1 AMPERE 0.1 1 2.988x10-13 1 stathenry
8.987x1020 8.987x1011 8.987x1017 8.987x1014 1
(1 ues)
1 statampere
3.336x1011 3.336x1012 1
(1 ues) FLUJO MAGNÉTICO
maxwell kilolínea WEBER
POTENCIAL ELÉCTRICO, FUERZA ELECTROMOTRIZ
1 maxwell
1 .001 10-8
abvolt VOLTS statvolt (1 línea ó 1 uem)
1 abvolt 1 kilolínea 1000 1 10-5
1 10-8 3.336x10-11
(1 uem)
1 WEBER 108 105 1
1 VOLT 108 1 3.336x10-3
1 statvolt INDUCCIÓN MAGNÉTICA
2.998x1010 299.8 1
(1 ues) 2 Weber/m
2
gauss kilolínea/plg miligauss gamma
= tesla
RESISTENCIA ELÉCTRICA 1 gauss
2 1 6.452x10-3 10-4 1000 105
(línea por cm )
abohm-cm OHMS statohm 1 kilolínea por
2 155.0 1 1.550x10-2 1.555x105 1.550x107
1 abohm-cm plg
1 10-9 1.113x10-21 1 Webber por m
2
(1 uem) 104 64.52 1 107 109
(1 tesla)
1 OHM 109 1 1.113x10-12
1 miligauss 0.001 6.452x10-6 10-7 1 100
1 statohm
8.987x1020 8.987x1011 1
(1 ues) 1 gamma 10-5 6.452x10-8 10-9 0.01 1
FUERZA MAGNETOMOTRIZ
RESISTIVIDAD ELÉCTRICA
ohm mil abampere-vuelta AMP-VUELTA gilbert
1 abohm-cm μohm-cm ohm-cm 1 statohm OHM-M
circ./pie
1 abohm-cm 1 abampere-vuelta 1 10 12.57
1 0.001 10-9 1.113x10-21 10-11 6.015x10-3
(1 uem) 0.1 1 1.257
1 ampere-vuelta
1 microohm-cm 1000 1 10-6 1.113x10-18 10-8 6.015
1 gilbert 7.958x10-2 0.7958 1
1 ohm-cm 109 106 1 1.113x10-12 0.01 6.015x106
INTENSIDAD DE CAMPO MAGNÉTICO H
1 statohm
8.987x1020 8.987x1017 8.987x1011 1 8.987x109 5.406x1018 abampere- AMP-VUELTA
(1 ues) amp-vuelta/cm amp-vuelta/plg oersted
vuelta/cm /METRO
1 OHM-METRO 1011 108 100 1.113x10-10 1 6.015x108 1 abampere-vuelta
1 10 25.40 1000 12.57
centímetro
1 ohm-mil circular
166.2 0.1662 1.662x10-7 1.850x10-19 1.662x10-9 1 1 ampere-vuelta
pie 0.1 1 2.540 100 1.257
centímetro
1 ampere-vuelta
3.937x10-2 0.3937 1 39.37 0.4947
1 ues = 1 pragilber = 4π amp- pulgada
1 ues = 299.8 weber -9 1 oersted = 1 gilbert
2.655x10 amp-vuelta/m vuelta 1 ampere-vuelta
0.001 0.01 2.540x10-2 1 1.257x10-2
6 2 1 ues = 1 praoersted = metro
1 ues = 2.998x10 weber/m -11
2.655x10 amp-vuelta 4π amp-vuelta/m 1 oersted 7.958x10-2 0.7958 2.021 79.58 1
14. UNIDADES ESPECIALES
Equivalencias métricas Equivalencias inglesas
1 Barril de petróleo 159 litros 42 galones US
1 Quintal de algodón 46.02 kg 101.244 libras
1 Saco de café 60 kg 132 libras
1 carat
1 Quilate (piedras preciosas) 200 miligramos
3.086 grains
1/24 parte de oro puro contenida en
1 Quilate de oro 1 gold carat
una aleación
Oro puro 24 quilates 24 carats
15. ALFABETO GRIEGO
Mayúscula Minúscula Nombre
Alfa
Beta
Gamma
Delta
Épsilon
Dseta
Eta
Theta
Iota
Capa
Lambda
Miu
Nu
Xi
Ómicron
Pi
Rho
Sigma
Tau
Ypsilon
FI
JI
Psi
Omega