Footing Concrete Calculator
Concrete for isolated footings — straight pad or stepped/trapezoidal.
Trapezoidal footings save ~30% concrete over straight pads of the same base — worth the formwork on bigger jobs. Don't forget the PCC levelling bed below (75–100 mm at 1:4:8).
Formula
Footing Concrete Calculator is a free footing concrete for civil engineers, contractors and quantity surveyors — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Footing Concrete Calculator
Concrete for isolated footings — straight pad or stepped/trapezoidal. The calculation implements V = L×W×t × n × 1.05 (IS 1080; estimation practice). Trapezoidal footings save ~30% concrete over straight pads of the same base — worth the formwork on bigger jobs. Don't forget the PCC levelling bed below (75–100 mm at 1:4:8).
How to use Footing Concrete Calculator
- 1Enter Footing length in m.
- 2Enter Footing width in m.
- 3Enter Thickness in mm.
- 4Enter Number of footings.
- 5Read Per footing, Total (with 5% waste) instantly — no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Footing Concrete Calculator?
- ✓Implements the standard formula — V = L×W×t × n × 1.05
- ✓Reference cited on-page: IS 1080; estimation practice
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Footing Concrete Calculator use?+
It computes V = L×W×t × n × 1.05, per IS 1080; estimation practice. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
Trapezoidal footings save ~30% concrete over straight pads of the same base — worth the formwork on bigger jobs. Don't forget the PCC levelling bed below (75–100 mm at 1:4:8).
Does it include wastage?+
Yes — standard wastage/bulking factors are built in and stated in the formula line, so the quantity is an orderable number, not a bare geometric volume.
Is the Footing Concrete Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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