This document presents a study on interpreting the compressive strength of concrete cubes and cylinders using destructive and non-destructive testing methods. Concrete cubes and cylinders of varying grades (M20, M25, M30, M40) were tested at 28 days using compressive testing (destructive) as well as rebound hammer and ultrasonic pulse velocity (non-destructive) tests. The results found that the average compressive strengths from cubes were higher than cylinders. Regression analysis was used to develop relationships between the different test methods. Equations relating compressive strength to rebound number and pulse velocity were developed for both cubes and cylinders.