Calculator
Footing Calculator
Estimate cement bags, sand, aggregate, and ₹ cost for strip or pad footings — length × width × depth in m or ft.
Inputs
Unit system
Results
Wet concrete volume
1.62m³
Wet concrete volume
57.21cft
50 kg cement bags
14bags
Sand required
24.03cft
Aggregate required
48.06cft
Estimated material cost
₹9,565
How this is calculated
Formula
- Convert ft → m if imperial is selected
- wet_volume = length × width × depth
- dry_volume = wet_volume × 1.54
- Split dry volume by grade ratio → cement, sand, aggregate
- sand/agg shown in cft (× 35.3147)
- cost = bags × ₹/bag + (sand_cft + agg_cft) × ₹/cft
Assumptions
- Footing modelled as a simple rectangle (length × width × depth).
- Choose Metric (m) or Imperial (ft) for all three dimensions.
- Material split uses selected grade mix and dry volume × 1.54.
- Cement bags are 50 kg standard Indian bags.
- Cost = (cement bags × ₹/bag) + ((sand + aggregate) cft × ₹/cft).
- Steel, formwork, and labour are not included — confirm grade with your structural drawing.