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Compressive Strength
Compressive strength of concrete cubes and cylinders in MPa and psi from the crushing load, with acceptance check against f′c and age.
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About this test
Enter the crushing loads of your cubes or cylinders to get the strength of each specimen, the average, and a check against the specified strength — or against the expected trend for 7- and 14-day tests.
How it's calculated
- Strength (MPa) = maximum load (N) ÷ loaded area (mm²)
- 1 MPa = 145 psi
- 28-day check: average ≥ f′c and no specimen below f′c − 3.5 MPa
Results are calculated from the values you enter using standard formulas. Download the PDF to keep a record. For certified testing, design or construction, talk to our engineers.
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