Bags of Concrete Calculator

Convert cubic yards or cubic feet into the number of 80, 60, or 50 lb bags needed.

Calculator inputs

Enter a known concrete volume to estimate common bag counts.

VolumeConcrete volume you already know

1 cubic yard = 27 cubic feet.

Concrete Volume

1.00 yd3

45 x 80 lb bags

1. Enter volume
Use cubic yards if you have a supplier estimate, or cubic feet for a smaller pour.
2. Click Calculate
Review common 80, 60, and 50 lb bag counts.
3. Round up
Bag yields vary, so buy enough to cover waste and small form changes.

1 cubic yard

About 45 bags at 80 lb each, before extra waste.

Small repairs

Switch to cubic feet when measuring patch or post-hole volume.