How this calculator works
Uses an editable nominal mix ratio and dry-volume factor. The 40.8 kg/ft³ bulk-density conversion is a planning approximation; structural concrete should follow the approved mix design and engineer specifications.
Important India note
Construction practice, material sizes, labour methods, land units and property charges vary across India. Editable assumptions are used where one nationwide value would be misleading.
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How to use this calculator
- Set Concrete volume (default 100).
- Set Dry-volume factor (default 1.54).
- Set Cement mix part (default 1).
- Set Sand mix part (default 1.5).
- Set Aggregate mix part (default 3).
- Set Cement bag weight (default 50).
- Select Calculate to update the result. Reset restores the starting values.
Planning estimate only. Confirm project quantities, specifications, local measurement conventions, prices, taxes and legal charges with the relevant professional or authority.
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