Concrete Calculators for Every Project
Pick the calculator for your project; each one gives cubic yards, bags of 40 to 80 lb mix and cost from the same tested engine.
Concrete Calculators by Shape
- Concrete calculator: every shape in one tool
- Slab concrete calculator: slabs and pads; 10×10 at 4 in = 1.36 yd³ with extra
- Concrete driveway calculator: yards and cost by driveway size
- Footing calculator: strip, pad and pier footings
- Sonotube calculator: bags per tube, 6 to 24 in
- Post hole calculator: bags per post hole
- Concrete wall calculator: poured and retaining walls
- Concrete steps calculator: steps and landings
- Monolithic slab calculator: slab plus thickened edge
- Deck pier calculator: bags per pier and IRC footing size
- Circular concrete slab calculator: round slabs and pads
- Retaining wall concrete calculator: stem and footing
- Curb and gutter concrete calculator: yards per linear foot
- Concrete triangle calculator: triangle and trapezoid slabs
- Concrete ramp calculator: yards and the ADA 1:12 run
- Concrete countertop calculator: countertop bags and weight
Base, Reinforcement and Blocks
- Rebar calculator for slabs: bars and spacing for a slab
- Gravel under concrete slab: 4 in base course
- Block calculator: blocks for a wall
- Wire mesh calculator: mesh sheets and rolls for a slab
- Concrete form calculator: linear feet of form boards
Bags, Yards and Weight
- Bags of concrete calculator: 40, 50, 60 and 80 lb bags
- Bags per yard: 45 bags of 80 lb per yard
- Quikrete calculator: Quikrete bag counts
- Sakrete calculator: Sakrete bag counts
- Cubic yards of concrete: feet to yards and trucks
- Concrete weight calculator: pounds per foot, yard and slab
- Slab size chart: 8×8 to 40×60
- Concrete square feet to yards: coverage by thickness
- Concrete truck calculator: yards per truck
- Concrete bags per pallet: pallet counts and weight
Cost and Mix
- Concrete price calculator: $160–195 per yard
- Slab cost calculator: price per square foot and size
- Ready-mix vs bagged concrete: when to switch
- Concrete mix ratio calculator: 1:2:3 cement, sand and gravel
- Cement vs concrete: 94 lb bags per yard
- Concrete projects: hot tub pads, shed bases, patios, garages, RV pads
- Rebar weight calculator: lb per foot by bar size
- Water-cement ratio calculator: w/c by weight
- Flowable fill calculator: trench and void volume
- Block fill calculator: grout for CMU cores
- Paver base calculator: gravel and sand under pavers
- Self-leveling calculator: bags by area and depth
- Frost depth by state: how deep footings go
Last reviewed 2026-11-05. Numbers come from our tested engine; see how we calculate and our sources.