Concrete Mix Calculator Widget

Primary output 10 cement bags

Start in on-site batch mode for cement, sand, aggregate, water, and bag counts. Switch to ready-mix order when you only need cubic yards for a supplier; the same shape and waste inputs are reused.

What you are estimating (required)

Pour shape (required)

Unit system (required)

Length

Width

Thickness or depth

Height

Outer diameter

Inner diameter

Number of steps

Riser height

Tread depth

Number of identical pours (required)

Mix grade / preset (required)

More options

Net volume 0.94 m³ Water/cement 0.55 Notes —

Cement bag size (required)

Waste / contingency (%) (required)

Cement parts (custom)

Sand parts (custom)

Aggregate parts (custom)

Water/cement ratio (custom)

Answer

10 cement bags

Cement bags 10 bags

Cement 418.6 kg

Sand 697.7 kg

Aggregate 1,264.6 kg

Water 230.2 L

Order volume (m³) 1.04 m³

Net volume (m³) 0.94 m³

Water/cement ratio 0.55

Show calculation details

Net volume (ft³) 33.33 ft³

Mix ratio 1:1.5:3

Nominal class C20

Dry-volume basis 1.6 m³

Notes —