construction ToolUpdated 2026-09-20
Cement, Sand & Gravel Calculator
When mixing concrete on site, understanding the volumetric ratios of cement, fine aggregate (sand), and coarse aggregate (gravel) is vital for structural integrity. Enter your target concrete volume to calculate material requirements.
Frequently Asked Questions
Why is dry volume multiplied by 1.54?
When water is added to dry cement, sand, and gravel, the smaller particles settle into the void spaces between aggregate rocks, shrinking the volume by approximately 35%. Multiplying by 1.54 offsets this shrinkage.
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