All calculators
89 free calculators, grouped by job. Start with the concrete calculator if you are not sure which one you need.
Slabs & flatwork
Calculators for slabs, pads, patios, driveways and round pours.
Concrete Calculator (Metric, m³)Free metric concrete calculator. Enter metres and centimetres for slabs, footings, columns, walls or steps to get cubic metres, kg and bags.Open calculator Concrete Curb CalculatorFree concrete curb calculator. Enter length and curb and gutter dimensions to get cubic yards per linear foot, ready-mix order, bags and weight.Open calculator Concrete Curing TimeConcrete curing time: keep new concrete moist 5–7 days, protect it from freezing for 48 hours and expect full rated strength at 28 days.Open calculator Concrete Cylinder CalculatorFree concrete cylinder calculator for round pads and hollow cylinders (pipe, ring, tank wall). Enter diameters and height for yd³, m³, weight and bags.Open calculator 
Concrete Driveway CalculatorFree concrete driveway calculator. Enter length, width and thickness to get cubic yards, m³, 40–90 lb bag counts and an order amount for any driveway.Open calculator Concrete Patio CalculatorFree concrete patio calculator. Enter size and thickness to get cubic yards, ready-mix order and 80 or 60 lb bags for square, L-shaped or round patios.Open calculator Concrete Sidewalk CalculatorFree concrete sidewalk calculator. Enter walk length, width and thickness to get cubic yards, ready-mix order and 80 or 60 lb bags for any walkway or path.Open calculator 
Concrete Slab CalculatorFree concrete slab calculator. Enter length, width and thickness to get cubic yards, 40–90 lb bag counts, weight and cost for any slab, pad or floor.Open calculator Concrete Slab Thickness CalculatorFree concrete slab thickness calculator. Enter slab size and the yards or bags you have to get the average thickness, plus concrete needed at 4, 5 and 6 in.Open calculator 
Self-Leveling Concrete CalculatorFree self-leveling concrete calculator. Enter floor area and thickness to get the volume and number of bags of self-leveling underlayment to buy.Open calculator Types of Concrete FinishesTypes of concrete finishes compared: broom, float, trowel, stamped, exposed aggregate and colored, with when to apply each and where each works best.Open calculator Footings, columns & steps
Concrete for footings, Sonotubes, post holes, steps and walls.
Concrete Column CalculatorFree concrete column calculator for square and rectangular columns and beams. Get cubic yards, m³, weight and 40–90 lb bag counts per column.Open calculator 
Concrete Footing CalculatorFree concrete footing calculator. Enter total length, width and depth to get cubic yards, m³ and bag counts for wall footings, footers and pier pads.Open calculator 
Concrete Steps CalculatorFree concrete steps calculator. Enter number of steps, rise, run, width and landing to get cubic yards, m³, 40–90 lb bag counts and weight for poured stairs.Open calculator 
Concrete Wall CalculatorFree concrete wall calculator. Enter wall length, height and thickness to get cubic yards, m³ and 40–90 lb bag counts for poured and retaining walls.Open calculator 
Fence Post Concrete CalculatorHow many bags of concrete per fence post? Enter hole diameter, depth, post size and post count to get 40 to 90 lb bag counts.Open calculator 
Sonotube Concrete CalculatorFree Sonotube calculator. Enter tube diameter, depth and number of tubes to get cubic yards, m³ and 40–90 lb bag counts for round piers and columns.Open calculator Bags & brands
How many bags of Quikrete or Sakrete you need, and how many bags make a yard.
80 lb Bag of Concrete Cubic FeetAn 80 lb bag of concrete makes 0.60 cubic feet (17 litres). See the yield of every bag size in ft³, yd³ and litres, and how much area each bag covers.Open calculator 
Bags of Concrete per YardA cubic yard of concrete takes 45 × 80 lb bags, 60 × 60 lb or 90 × 40 lb. Chart, bags per m³, and a calculator for any number of yards.Open calculator 
Concrete Bag CalculatorFree concrete bag calculator. Enter your slab, hole or step size to get how many 40, 50, 60 or 80 lb bags of concrete you need, plus yards and m³.Open calculator Concrete Bags per PalletBags of concrete per pallet from Quikrete and Sakrete product pages: 42 of 80 lb, 56 of 60 lb, 80 of 40 lb, plus pallet weight, volume and pallets per yard.Open calculator 
Quikrete CalculatorIndependent Quikrete calculator. Get how many 40, 50, 60 or 80 lb bags of QUIKRETE Concrete Mix you need for a slab, post hole, Sonotube or step.Open calculator Ready-Mix vs Bagged Concrete CalculatorReady mix concrete calculator: enter your yards and local prices to see how many bags it takes, what a truck order would be, and which costs less.Open calculator 
Sakrete CalculatorIndependent Sakrete calculator: how many 40, 60, 80 or 90 lb bags of concrete mix you need for a slab, post hole or Sonotube, plus yards and m³.Open calculator Cost estimators
Estimate what a slab, patio, driveway or foundation will cost with your own local prices.
Asphalt Driveway CostAsphalt driveway cost: tons of hot mix for your driveway size and thickness, priced at your contractor's rate per ton, plus the cost per square foot.Open calculator Chip Seal Driveway CostChip seal (tar and chip) driveway cost from your own quotes: tons of cover stone, gallons of binder, cost per square foot and what moves the price.Open calculator Concrete Block PriceConcrete block price made simple: count CMU or cinder blocks for your wall, turn a pallet quote into a price per block, and total blocks, mortar and delivery.Open calculator Concrete Cost per Square FootConcrete cost per square foot from your own price per yard: a thickness × price matrix for slabs, driveways, patios and sidewalks, plus labor and fees.Open calculator Concrete Delivery CostConcrete delivery cost from your own quotes: turn yards into truckloads, add the short-load fee, and see the real delivered price per yard.Open calculator 
Concrete Driveway CostConcrete driveway cost calculator for new or replacement drives: yards to order by size and thickness, plus your prices for concrete, base, labor and removal.Open calculator Concrete Footing CostConcrete footing cost from your own quotes: concrete cost per linear foot by footing size, yards to order, rebar weight and the price drivers to ask about.Open calculator 
Concrete Patio CostConcrete patio cost calculator: yards or bags for your patio size, then your prices for concrete, base, labor and a plain, stamped or colored finish.Open calculator 
Concrete Price per YardConcrete price per yard explained: work out the yards to order, the true cost per yard after small-load and delivery fees, and bag equivalents.Open calculator Concrete Pump Rental CostConcrete pump rental cost from your quote: hours billed, minimum charge, per-yard and flat fees, with public 2025–2026 boom and line pump rates.Open calculator Concrete Removal CostConcrete removal cost from your own quotes: tons of debris by slab size at 150 lb/ft³, truck loads, landfill or recycler fees and what moves the price.Open calculator Concrete Resurfacing CostConcrete resurfacing cost from bag coverage: resurfacer bags per area and thickness from QUIKRETE Re-Cap and SAKRETE Flo-Coat data, plus resurface vs replace.Open calculator Concrete Sidewalk CostConcrete sidewalk cost from your own quotes: yards per linear foot for 3, 4 and 5 ft walks, cost per foot per $100/yd³, and the ADA width and slope rules.Open calculator 
Concrete Slab Cost CalculatorCost to pour a concrete slab from your size and local quotes: yards to order, concrete cost, delivery fees, labor and price per square foot for any slab.Open calculator Concrete Steps Cost CalculatorConcrete steps cost calculator: get the concrete volume, bags and a full estimate for poured steps from your local prices, plus when to repair instead.Open calculator 
Gravel Driveway CostGravel driveway cost calculator: tons and cubic yards of crusher run or crushed stone for your driveway size and depth, priced at your supplier's rate per ton.Open calculator Paver Patio CostPaver patio cost from your own prices: count pavers by size and pattern, add base gravel and bedding sand, and get cost per square foot and per m².Open calculator Precast vs Poured Concrete StepsPrecast concrete steps vs poured: compare installed quotes, see concrete volume and solid weight by size, and check IRC R311.7 riser and tread limits.Open calculator Ready-Mix Concrete PriceReady-mix concrete price explained: what to specify so quotes match, which order fees to ask about, and the bag price at which bagged mix costs the same.Open calculator Retaining Wall CostRetaining wall cost from your own quotes: count blocks, caps, base and drain rock, then add labor and design to get cost per foot and per square foot.Open calculator 
Slab Foundation CostSlab foundation cost estimator: concrete yards for the slab, footings and ICF walls by house size, plus base, rebar, vapor barrier and labor from your quotes.Open calculator Gravel & stone
Cubic yards and tons of gravel, pea gravel, river rock and driveway stone.
Aquarium Gravel CalculatorAquarium gravel calculator: enter tank length, width and depth to get pounds, kg, litres and bags of gravel or sand, plus tank gallons.Open calculator 
Asphalt CalculatorFree asphalt calculator. Enter length, width and compacted thickness to get tons of hot-mix asphalt, cubic yards, m³ and tonnes for driveways and lots.Open calculator Asphalt Millings CalculatorFree asphalt millings calculator. Enter driveway size and depth to get cubic yards and tons of recycled asphalt (RAP), with the FHWA density range and metric.Open calculator Crushed Concrete CalculatorFree crushed concrete calculator. Enter driveway or pad size and depth to get recycled concrete aggregate in cubic yards, tons and m³, using FHWA density data.Open calculator 
Crushed Stone CalculatorFree crushed stone calculator. Enter length, width and depth to get tons, cubic yards and m³ of #57 crushed stone, crusher run or gravel, plus 10% extra.Open calculator 
Crusher Run CalculatorFree crusher run calculator. Enter length, width and depth to get tons, cubic yards and m³ of crusher run, road base or dense-graded aggregate.Open calculator 
Driveway Gravel CalculatorCalculate tons and cubic yards of gravel for a driveway, layer by layer: base stone, #57 and crusher run top coat. Includes extra for compaction.Open calculator 
Gravel CalculatorFree gravel calculator. Enter length, width and depth to get cubic yards, tons, m³ and bags of gravel, crushed stone, pea gravel or crusher run.Open calculator Gravel Cost per TonGravel cost per ton calculator: tons for your area and depth, total and per-yard price from your quote, plus USGS 2021–2025 average prices per ton.Open calculator 
Landscape Rock CalculatorFree landscape rock calculator. Enter bed size and depth to get cubic yards, tons, m³ and 0.5 ft³ bags of decorative rock, lava rock or crushed stone.Open calculator 
Pea Gravel CalculatorFree pea gravel calculator for patios, paths and dog runs. Enter area and depth to get cubic yards, tons, m³ and 0.5 ft³ bags of pea gravel.Open calculator 
River Rock CalculatorFree river rock calculator for beds, borders and dry creeks. Enter area and depth to get cubic yards, tons, m³ and 0.5 ft³ bags of river stone.Open calculator Road Base CalculatorFree road base calculator. Enter length, width and compacted depth to get cubic yards, m³ and tons of road base, using a state DOT density you can override.Open calculator Soil & mulch
Mulch, topsoil, sand and raised-bed soil in yards, tons and bags.
Decomposed Granite CalculatorFree decomposed granite calculator. Enter path or patio size and depth to get DG in cubic yards, tons, m³ and bags, with your supplier's density as an override.Open calculator Excavation CalculatorFree excavation calculator. Enter length, width, depth and soil type to get bank cubic yards, loose yards after swell, m³ and truckloads to haul away.Open calculator 
Fill Dirt CalculatorFree fill dirt calculator. Enter area and depth to get cubic yards, tons and m³ of fill dirt for backfill, grading, low spots, ponds and pool fill-ins.Open calculator 
Mulch CalculatorFree mulch calculator. Enter bed size and depth to get cubic yards, cubic feet, cubic meters and 1.5, 2 or 3 ft³ bags of mulch for any bed or tree ring.Open calculator 
Paver Base CalculatorFree paver base calculator. Enter patio or walkway size and base depth to get cubic yards, tons and m³ of crusher run or #57 stone under pavers.Open calculator Paver CalculatorFree paver calculator. Enter patio size, paver size and pattern to get pavers to buy, pavers per square foot, plus base gravel and bedding sand in tons and m³.Open calculator 
Paver Sand CalculatorFree paver sand calculator. Enter patio size to get cubic yards, tons, m³ and 0.5 ft³ bags of bedding sand at 1 in, plus polymeric joint sand bag counts.Open calculator Pine Straw CalculatorPine straw calculator: enter bed size, the coverage on your bale and the depth you want to get bales of pine straw, area in m² and total cost.Open calculator Polymeric Sand CalculatorFree polymeric sand calculator. Enter patio size, paver size, joint width and paver thickness to get bags of polymeric sand, coverage per bag and joint volume.Open calculator 
Raised Bed Soil CalculatorSoil calculator for raised beds. Enter bed length, width and depth to get cubic feet, cubic yards, litres and bags of soil for 4x4, 4x8 or any size bed.Open calculator 
Sand CalculatorFree sand calculator. Enter area and depth to get cubic yards, tons, tonnes, cubic meters and 50 lb bags of sand for pavers, sandboxes and pool bases.Open calculator 
Topsoil CalculatorFree topsoil calculator. Enter area and depth to get cubic yards, tons, cubic meters and bags of topsoil or fill dirt for a lawn, garden bed or grading job.Open calculator Yards & conversions
Cubic yards, cubic feet, square feet to yards, and tons to yards.
Concrete Weight CalculatorFree concrete weight calculator. Enter length, width and thickness to get the weight of a slab or pad in pounds, tons and kg, plus weight per square foot.Open calculator 
Concrete Yards CalculatorConcrete yard calculator for slabs, footings, Sonotubes, walls and steps. Get cubic yards, cubic feet, m³ and the ready-mix order rounded up to ¼ yard.Open calculator 
Cubic Feet to Cubic YardsConvert cubic feet to cubic yards and cubic yards to cubic feet. Divide ft³ by 27 to get yd³. Includes conversion charts with cubic meters.Open calculator 
Cubic Yard CalculatorFree cubic yard calculator for concrete, soil, mulch and gravel. Enter length, width and depth to get cubic yards, cubic feet and cubic meters.Open calculator 
Square Feet to Cubic YardsConvert square feet and a depth in inches to cubic yards for concrete, mulch, soil and gravel. Includes coverage tables for 100 to 2,000 sq ft.Open calculator 
Tons to Cubic YardsConvert tons to cubic yards and cubic yards to tons for gravel, sand, crushed stone, topsoil, mulch and concrete, using typical material densities.Open calculator Block, rebar & mix
Concrete blocks, rebar grids and cement : sand : stone mix ratios.
Brick CalculatorFree brick calculator. Enter wall size, openings, brick size (modular, queen, king, Norman) and joint to get bricks, bricks per square foot and mortar.Open calculator Cement vs ConcreteCement vs concrete: cement is the powder binder; concrete is cement plus sand, gravel and water. See how much cement a yard needs and which one to buy.Open calculator Cinder Block Weight CalculatorA standard 8x8x16 cinder block weighs about 40 lb (18 kg); lightweight blocks about 26 lb. Weight chart by size, per pallet, and a load calculator.Open calculator 
Concrete Block CalculatorFree concrete block calculator. Enter wall length, height and openings to get CMU or cinder block counts, courses and blocks per course with breakage.Open calculator 
Concrete Mix Ratio CalculatorConcrete mix ratio calculator: pick 1:2:3, 1:2:4 or 1:1.5:3 and get 94 lb bags of cement, sand and gravel in ft³, yd³ and m³, plus water.Open calculator Concrete PSI GuideConcrete psi explained: IRC Table R402.2 minimums for slabs, garage floors and porches, ACI 318 strength by exposure class, and what psi bagged mix reaches.Open calculator 
Mortar CalculatorFree mortar calculator. Enter how many concrete blocks or bricks you are laying to get the number of 80 lb bags of mortar mix, with waste.Open calculator 
Rebar CalculatorFree rebar calculator for concrete slabs. Enter size, grid spacing and bar size to get bars each way, total length, 20 ft sticks and weight for #3 to #8.Open calculator Rebar Size ChartRebar size chart for #3 to #18 bars: diameter in inches and mm, cross-section area, weight in lb/ft and kg/m, stick weights, and Canadian metric 10M to 55M.Open calculator Retaining Wall CalculatorFree retaining wall block calculator. Enter wall length, height and block face size to get blocks, caps, base rock and drain rock in yd³, tons and m³.Open calculator Stucco CalculatorFree stucco and cement plaster calculator. Enter wall area, openings and coat thickness to get 80 lb bags of base coat and finish coat, volume and weight.Open calculator Wire Mesh CalculatorFree welded wire mesh calculator. Enter slab size, sheet or roll size, mesh style and overlap to get sheets or rolls to buy, mesh area and steel weight.Open calculator FAQ
Frequently asked questions
Are these calculators free?
Yes. Every calculator is free with no sign-up, and the results show the formula used so you can check them yourself.
Which calculator should I start with?
For most concrete jobs, start with the concrete calculator. It handles slabs, footings, columns, steps, walls and post holes, and gives cubic yards, bag counts and weight.
Do the calculators work in metric?
Yes. Each calculator accepts metric inputs and shows cubic meters alongside cubic yards, using NIST conversion factors (1 yd³ = 0.7645549 m³).
Where do the densities and bag yields come from?
Bag yields come from manufacturer data sheets and densities from government and university sources where we could find them. Our methodology page lists every source and marks the values that are planning assumptions.