Concrete Materials Calculator

Civil Practical Knowledge / Calculator

Get a clear material take-off such as cement, fine aggregate, coarse aggregate and water for nominal concrete mixes in seconds.

◈ Live estimate

Project inputs

Enter volume directly or calculate it from dimensions.

Concrete quantity (m³)

m³

Concrete grade / nominal mix

Wastage allowance

Cement bag size

Water–cement ratio

W/C

Material take-off

For 1.00 m³ of finished concrete

Finished concrete volume1.00 m³

Mix 1 : 2 : 4 5% wastage W/C 0.50 50 kg bag

Cement

0 bags0 kg

Fine aggregate

0 m³0 kg

Coarse aggregate

0 m³0 kg

Water

0 LBased on selected W/C ratio

Calculation assumptions ⌄

Material quantities use a 1.54 dry-volume factor, cement density of 1,440 kg/m³, sand density of 1,600 kg/m³, and aggregate density of 1,550 kg/m³. Wastage is applied to all materials. Nominal mixes are indicative only; follow the approved mix design and project specifications for structural work.