Concrete Calculator
Concrete Calculator

Pick a shape.
Get the volume.

Cubic yards and premix bags for slabs, footings, columns and steps —
plus mix, blocks, rebar, plaster and tile in one app.

Get it on Google Play

Results are estimates. Check site conditions and specs before ordering.

Concrete Calculator shape picker and footing dimension screens
Enter it as drawn

mm, cm or m — per field
Just fill in a · b · c from the guide

Footing dimension guide with per-field units
Mix in one tap

Send the volume straight to mix
Cement, sand, gravel & water

Mix ratio selection with cement, sand and gravel amounts
Saved by job site

Name it, save it,
reopen or share anytime

Saved calculations by job name

Every estimate you need on site

Concrete volume

  • Slab / wall, footing (ring, 2–4 cells), column (square, round, tube)
  • Steps, cone footing, trapezoid (retaining wall, ditch)
  • Waste allowance 0–15%
  • 40 / 60 / 80 lb premix bags, cost per cubic yard

Concrete mix

  • 1:1.5:3 strong · 1:2:4 general · 1:3:6 lean
  • Cement, sand, gravel (lb, ft³) and water (gal)
  • 47 / 94 lb cement bags

Blocks & bricks

  • Standard CMU 16 × 8 and brick sizes
  • Mortar joints, door and window openings
  • Units and cost with waste

Rebar weight

  • ASTM #3 to #10
  • Total weight and length
  • Cost by price per lb

Plaster

  • Wall area, thickness, mix 1:3 to 1:6
  • Cement bags and sand

Tiles

  • Room dimensions or total area
  • Tile count with grout gap
  • Boxes needed from tiles per box

Built for

  • Contractors and foremen checking yardage before ordering ready-mix
  • Small builders and remodelers preparing estimates
  • DIYers pouring a patio, driveway, fence footing or steps

Before you order ready-mix,
check the yardage

Get it on Google Play