Concrete & masonry
calculators.
Concrete, brick and block calculators for slabs, footings, walls and small pours.
Plan the quantity before the purchase.
Concrete and masonry orders begin with geometry, but the purchasing unit changes by material. Ready-mix is normally ordered by cubic yard, bagged mix by whole bag, and brick or block by piece. These calculators keep the measurement, waste and packaging assumptions visible so you can compare the estimate with the supplier's product data before ordering.
Choose a calculator
6 focused tools
Concrete Calculator
Estimate cubic yards, ready-mix volume, weight and cost for a rectangular concrete pour.
Yards, bags & costConcrete Bag Calculator
Calculate whole bags of concrete mix for a slab or rectangular pour.
40, 60 & 80 lb bagsConcrete Slab Calculator
Estimate concrete volume, ready-mix yards and cost for a rectangular slab.
Slabs, patios & padsConcrete Footing Calculator
Estimate concrete yards for continuous rectangular strip footings.
Continuous footingsBrick Calculator
Estimate bricks for a rectangular wall using brick face size and mortar joint.
Bricks, mortar & wasteConcrete Block Calculator
Estimate concrete masonry units for a rectangular wall with openings.
CMU blocks & wasteA practical estimating sequence
- Separate the project into simple slabs, strips, walls or piers.
- Measure finished dimensions and use the specified thickness or joint size.
- Calculate each section, then add quantities that use the same material.
- Confirm bag yield, unit coverage and delivery minimums with the supplier.
Common mistakes to avoid
- Using excavation size instead of finished concrete dimensions.
- Forgetting thickened slab edges, steps, piers or grade beams.
- Treating nominal brick and block sizes as actual unit dimensions.
- Using a quantity calculator as a substitute for structural design.
Concrete & masonry FAQ
How much extra concrete should I order?
A modest allowance is common for uneven subgrade, spillage and measurement error, but the right percentage depends on the pour and supplier minimums. Adjust the waste field instead of relying on a fixed rule.
Should I use bags or ready-mix concrete?
Bags are convenient for small repairs and isolated posts. Larger pours usually become more practical as ready-mix, subject to local delivery minimums and site access.
Do these tools design a footing or wall?
No. They estimate material quantity only. Dimensions, reinforcement, strength and code compliance must come from the project requirements and qualified professionals.
This guide is published and maintained by EasyTool.me. Review the calculation methodology and verify project-specific requirements with the selected product supplier or a qualified professional. Last materially reviewed August 16, 2026.