Cement, Sand & Mortar Calculator

Work out cement bags and sand for a mortar volume and mix ratio — with an editable dry-volume factor.

Wet mortar volume

cft

Prefilled from the brick calculator — edit if needed.

Mix ratio (cement : sand)

Assumptions — edit to match your site

Dry-volume factor converts wet mortar to the dry materials you must buy (≈1.33). Cement: 50 kg/bag, 1440 kg/m³.

Cement parts

Sand parts

Dry-volume factor

Cement3.6 bags

Cement weight180 kg

Sand17.65 cft= 0.5 m³

Dry volume (materials)22.06 cft

How it's calculated

Dry volume = 16.59 × 1.33 = 22.06 cft

Total parts = 1 + 4 = 5

Cement = 22.06 × 1/5 = 4.41 cft → 180 kg ÷ 50 = 3.6 bags

Sand = 22.06 × 4/5 = 17.65 cft

⚠️ Indicative estimate only — quantities and prices vary by site, materials and method. Always verify with your contractor or vendor before buying.

These tools are free

To turn an estimate into reality, hire verified professionals or order materials from suppliers on Mahprotocol.