Updated Construction

Concrete Calculator

Estimate concrete volume for slabs, footings, columns, beams, and stairs. Switch between metric and imperial units and see approximate bag counts and waste allowance.

Slab Volume Footings Columns & Beams Stair Volume

All-in-One Concrete Volume Calculator

Select your unit system, choose a tab, enter dimensions, and see how much concrete you need.

Unit system:
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: centimeters · Imperial: inches
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet
Metric: meters · Imperial: feet

What Concrete Calculator Calculates

Use Concrete Calculator to estimate concrete volume for slabs, footings, columns, beams, and stairs.

Related tools in this category are listed under Construction Calculators.

Concrete Calculator Inputs

Concrete Calculator uses Length, Width, Thickness, Waste Allowance (%), Total Footing Length.

Concrete Calculator Formula or Method

  • Volume (m³) = length (m) × width (m) × thickness (m)
  • Volume ≈ width × total run × total rise ÷ 2
  • For the Concrete Calculator, this formula shows how the displayed result is derived from the entered values.

Reading Concrete Calculator Results

The results include Total Volume (m³), Total Volume (yd³), 50 kg Bags (approx), 80 lb Bags (approx), Columns Volume (m³), Beams Volume (m³).

Alongside Concrete Calculator, use Concrete Beam Calculator to estimate concrete volume, rebar quantity and beam self-weight in Simple Mode.

For a different result from Concrete Calculator, Steel Beam Calculator can quickly estimate bending moment, shear, deflection and approximate strength for a simply supported steel beam.

Calculators Related to Concrete Calculator

After checking Concrete Calculator, use Block Calculator to estimate concrete blocks, mortar, rebar and grout for one or multiple walls. When you need to estimate lap splice length and development length for reinforcing bars, use Rebar Overlap Calculator. Stair Calculator covers a separate task: calculate stair steps, rise and run, stringer length, stair angle, tread depth, riser height and basic material estimates.

After checking Concrete Calculator, use Square Footage Calculator to calculate area in square feet and square meters for rooms, shapes, multiple rooms, flooring projects, land/plots, and scaled blueprints. When you need to estimate drywall area, sheet counts and cost for your project. Use room, single wall, multi-room and cost modes, use Drywall Calculator. Wallpaper Calculator covers a separate task: estimate how many rolls of wallpaper you need for single walls or full rooms.

After checking Concrete Calculator, use Gravel Calculator to estimate gravel for driveways, paths and landscape beds by calculating area for rectangular and circular shapes, converting depth into volume.

Frequently Asked Questions About Concrete Calculator

It is used to estimate concrete volume for slabs, footings, columns, beams, and stairs.

It uses Length, Width, Thickness, Waste Allowance (%), Total Footing Length.

Concrete Calculator uses Volume (m³) = length (m) × width (m) × thickness (m).

It returns Total Volume (m³), Total Volume (yd³), 50 kg Bags (approx), 80 lb Bags (approx), Columns Volume (m³), Beams Volume (m³).

Check Length, Width, Thickness first. Differences can also come from rounding, unit choices, or a different formula or rule set.