Concrete Cylinder L/D Correction Factor Calculator

Enter the measured specimen length and diameter. The calculator determines the L/D ratio and linearly interpolates the applicable correction factor.

Use any unit, but use the same unit for length and diameter.
Use the same unit used for specimen length.

Reference Values

L/D RatioCorrection Factor
1.750.98
1.500.96
1.250.93
1.000.87
Important: This calculator uses linear interpolation between the listed L/D ratios. For an L/D ratio greater than 1.75, no correction factor is applied. For an L/D ratio below 1.00, the calculator does not extrapolate beyond the reference data.