Concrete Volume Calculator
Work out the concrete for a footing, column or slab. Enter the dimensions and how many, pick the nominal mix grade, and get the volume plus indicative cement, sand and aggregate.
E.g. 4 identical column footings of 1 x 1 x 0.3 m.
Wet volume for 4 units.
Materials use a 1.54 dry-volume factor and the nominal M20 (1:1.5:3) ratio. Allow wastage and round up when ordering.
Indicative only. Nominal mixes are fine for small non-critical work, but structural concrete (footings, columns, retaining walls) should follow a design mix and reinforcement specified by a licensed structural engineer to IS 456. This tool does not set the grade, cover or steel for your structure — confirm with your engineer.
Related Guides — Deep-dive reading
Compound Wall Piers and Columns in India: Spacing, Reinforcement and Stability (2026)
Why a long, free-standing boundary wall needs intermediate piers or RCC columns to stay up — the physics of overturning in plain terms, thickened masonry piers vs reinforced-concrete columns on footings, indicative spacing that an engineer sets to your height and wind zone, the coping or tie beam that braces the top, and where to break a long run with movement joints.
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Which concrete grade (M10, M20, M25...) for which part of your house, and why — nominal vs design mix, exposure conditions, and how not to overspend or underspecify.
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The reinforced cement concrete water tank — cast in place for large underground sumps and big overhead terrace tanks — how it is built to M25 watertight concrete, why waterproofing and IS 3370 detailing decide whether it leaks, food-grade lining, cleaning access and ventilation, life, indicative cost and where it beats plastic.
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