Concrete Calculator

Concrete Calculator (Ontario) — Yards, Meters, Trucks & Cost
  • Slabs / Footings / Walls
  • Yards + meters
  • Trucks + cost

Concrete Calculator (Ontario)

Concrete is one of those things that looks simple right up until you’re standing there with a truck scheduled for 9:00 AM and someone asks, “So… how many yards is that?” This calculator gives you a fast, reliable way to estimate concrete volume for common pours — slabs, footings, walls, columns, curbs, and even stairs — without doing math on a scrap of plywood.

Enter your dimensions, pick imperial or metric, and set a waste factor (because real life has spills, over-excavation, and “let’s make it a bit thicker” moments). You’ll get cubic yards, cubic meters, cubic feet, rough truck count, and an estimated material cost using your $/m³ rate.

Before you order concrete, double-check these 3 things:
  • Thickness: A slab that’s 4" vs 5" is a big swing on total volume.
  • Edges & thickened sections: Garage door edges, grade beams, haunches, etc. add up fast.
  • Access: If the truck can’t reach, you may need a pump — and you don’t want to discover that at 8:57 AM.
Planning tool disclaimer:
This is for estimating volume and logistics. Always confirm ordering, mix, strength, slump, reinforcement, and placement requirements with your plans/specs and your supplier.

Concrete Calculator

Calculate concrete volume, trucks, and rough material cost — fast enough to use while the truck is still on dispatch.

Length
feet
Width
feet
Thickness / Depth
inches
Waste Factor
10%
Typical: 5–10% for slabs, 10–15% for complex shapes
Concrete Price per Cubic Meter
$
Use your supplier’s current $/m³ rate (delivered) for quick budget math.
Concrete Needed
0.00
cubic yards
Cubic Meters
0.00 m³
Cubic Feet
0.00 ft³
Ready-Mix Concrete $0
Approximate Weight 0 lbs
Delivery Trucks 0
📏 Measuring Guidelines
Always round up when ordering. It’s better to have a little extra than to run short.
🚛 Delivery Notes
Standard trucks hold ~10 cubic yards. Plan pours and access accordingly.
⏱️ Working Time
Concrete starts setting fast. Have forms, rebar, and crew ready before it shows up.
💪 Strength Considerations
Typical: 2,500–3,000 PSI for slabs; 3,500–4,000 PSI for driveways/high traffic.

Ordering notes (so you don’t get burned)

Once you’ve got your volume, the next question is ordering and logistics. If your pour is spread out or you’re working in hot weather, plan your placement so you’re not fighting set time. And if you’re close to the “one truck vs two trucks” line, it’s worth planning the pour in sections rather than rushing and hoping for the best.

This tool is built for planning — but it’s also a great double-check before you call the batch plant. If you’re doing footings and slabs as part of a new build, jump over to our Footings Cost and ICF calculators next so you can connect the concrete volume to the real budget.