Concrete Wall Volume Calculator

Work out concrete wall volume instantly with clear inputs, formula shown and shareable results.

About Concrete Wall Volume Calculator

Wall concrete is the net elevation area, gross area less openings, multiplied by the thickness. Formwork is counted on both faces because each has to be erected, tied and stripped, and it is normally the dominant cost item in a concrete wall.

Formulas

Wall volume

V = (length x height - openings) x thickness

Formwork

Area = net wall area x 2 faces

Worked example

With the default values below, Concrete Wall Volume Calculator returns Concrete volume of 5.200. Change any input above and every figure here is recalculated in your browser.

Inputs used

Wall lengthminimum 0.1 m: 10 m
Wall heightminimum 0.1 m: 3 m
Wall thicknessminimum 0.05 m: 0.2 m
Area of openingsminimum 0 m²: 4 m²

Results

Concrete volume: 5.200 m³
Net wall area: 26.00 m²
Formwork area, both faces: 52.00 m²
Concrete weight: 12.48 t

Step by step

1Values used
2Wall volume
3Formwork
4Concrete volume= 5.200 m³
5Net wall area= 26.00 m²
6Formwork area, both faces= 52.00 m²
7Concrete weight= 12.48 t

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Concrete Wall Volume figure worked out?

V = (length x height - openings) x thickness. Wall concrete is the net elevation area, gross area less openings, multiplied by the thickness.

Do small openings get deducted?

Standard measurement rules usually ignore openings below about 0.5 m² because the formwork and labour saved are negligible against the extra detailing.

What values do I need to enter?

This calculator takes 4 inputs: Wall length, Wall height, Wall thickness, Area of openings. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.