Cement Calculator
Calculate Portland cement bags, sand, and gravel proportions for custom concrete mixing.
Input Parameters
Enter details for calculation.
Cement Bags (94lb)
Expert Tip
One 94 lb bag of Portland cement yields approx 4.5 to 5.5 cu ft of mixed concrete depending on aggregate ratio.
Calculation Methodology & Details
Formula
Applies standard construction engineering calculation formulas.
Important Disclaimer
The calculations provided are for educational and structural planning purposes. Always consult a qualified general contractor or structural engineer for site-specific verification.
How to Calculate Step-by-Step
Follow these steps to complete the calculation:
Step 1
Determine total concrete volume in cubic feet.
Step 2
Select structural mix ratio (1:2:4 for standard footings, 1:1.5:3 for high strength).
Step 3
Calculate exact 94 lb cement bags and cubic yards of sand and gravel.
Detailed Insights & Expert Guide
ℹ️ About this Calculation
Computes raw Portland cement bags, masonry sand, and gravel quantities required for volume concrete mixing according to ASTM standards.
Variable Glossary
Target Volume
Total volume of mixed concrete required in cubic feet.
Mix Ratio
Volumetric proportion of cement to sand to coarse aggregate.