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Concrete Calculator

Bags or cubic yards for slabs, footings, or post holes — plus all your tools.

Project Type

Dimensions

4" standard patio, 6" driveway, 8"+ heavy load

See My Shopping List →
Concrete needed
1.23 cubic yards
33.3 cubic feet
2
yards ready-mix
Over 1 yard — ready-mix delivery recommended over bags

Your Shopping List

Based on the dimensions on the left — edit them to match your project and this updates as you type.

2
Ready-Mix Concrete (cubic yards)

1.2 yards — order ready-mix delivery for projects over 1 yard

Tip: Add 10% to your order. Running short on a pour is a disaster.

1
Mixing Tub (6 cu ft)

For hand mixing small pours — deep enough to actually mix

1
Mason's Hoe

Mixes concrete faster and more thoroughly than a shovel

1
Concrete Float (bull float)

Smooth the surface before it sets — you have a small window

5
Rebar (1/2", 10 ft)

Reinforce slabs — lay in a grid every 18"

1
Expansion Joint (20 ft)

Control joints prevent random cracking in large slabs

1
Safety Glasses + Gloves

Wet concrete is caustic — protect your skin and eyes

Don't forget

Check for underground utilities before digging. Call 811 (USA) — it's free and required by law. This catches gas, electric, and water lines before you hit them.