Concrete Calculator for Driveways
Estimate concrete for a driveway slab.
Concrete driveways carry vehicle loads, so they're poured 5–6 inches thick. The calculator starts at 6 inches. At this volume, ready-mix delivery is almost always the right call over bags.
Concrete Calculator
Estimate how much you need — and the cost.
- cubic feet 50
- cubic meters 1.416
- tons (US) 3.75
- tonnes 3.4
Tip: Driveways need control joints and often rebar or wire mesh — plan reinforcement before the pour.
How it's calculated
1 cubic yard = 27 cu ft, covering about 81 sq ft at 4 in / 54 sq ft at 6 in; an 80 lb pre-mix bag yields about 0.6 cu ft (about 45 bags per cubic yard).
See the full Concrete Calculator for the complete how-to, unit conversions, and data sources.
Concrete Calculator for Driveways FAQ
How thick should a concrete driveway be?
5–6 inches for residential vehicles over a compacted base; heavier vehicles need more and proper reinforcement.
How much concrete for a driveway?
A 600 sq ft driveway at 6 inches needs about 11.1 cubic yards — well into ready-mix territory.