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Search across all of our concrete, mix, and reinforcement calculators.
Calculators Available
Beam Concrete Calculator
Estimate concrete for beams and lintels.
Column Concrete Calculator
Volume for square, rectangular, and circular columns.
Concrete Yards Calculator
Convert and compute volume into cubic yards.
Concrete Weight Calculator
Convert any concrete volume (yd³, ft³, m³) or pour dimensions to weight in lb, short tons, and kg — with normal-weight, lightweight, and bag-mix presets.
Concrete Cubic Meter Calculator
Metric-first concrete calculator — enter dimensions in m / cm / mm to get volume in m³, weight in kg, and bag counts for 20 / 25 / 40 kg pre-mix bags.
Footing Concrete Calculator
Continuous, isolated, and combined footings.
Nominal Mix M5-M25 Calculator
Nominal Mix M5-M25 Calculator
Mortar Calculator
Estimate 80 lb, 60 lb, and 40 lb mortar bag counts for block walls, brick veneer, and stone veneer with ASTM C270 type selection and waste allowance.
Concrete Mix Water Calculator
An 80 lb bag of concrete needs about 6 pints (3 quarts) of water, with a 6–9 pint working range. Calculate exact water for any number of bags across 40/50/60/80 lb sizes.
Pier / Caisson Concrete Calculator
Cylindrical shafts and drilled piers by length.
Sonotube Concrete Calculator
Volume, cubic yards & bag counts for cylindrical tube forms.
Slab Concrete Calculator
Estimate concrete for slabs, patios, and floors.
Concrete Pad Calculator (AC, Shed, Hot Tub, Generator)
Estimate concrete volume, bag counts, and cost for small equipment pads — AC unit, shed, hot tub, and generator presets included.
Monolithic Slab Concrete Calculator (Slab + Thickened-Edge Footing)
Calculate concrete volume for a monolithic slab — slab body plus integral perimeter footing in a single pour. Garage, house foundation, and shed presets with ACI 318 and IRC R403 compliance checks.
Concrete Slab Cost Calculator
Estimate cost of concrete for slabs, patios, and floors.
Concrete Slab Weight Calculator
Estimate weight of concrete for slabs, patios, and floors.
Concrete Slab Load Capacity Calculator
Estimate load capacity of concrete slabs.
Concrete Sidewalk Calculator
Estimate concrete volume, bags, and cost for slabs, patios, and floors.
Concrete Patio Calculator
Estimate concrete volume, bags, and cost for slabs, patios, and floors.
Staircase Concrete Calculator
Flights, landings, risers, and treads volume.
Concrete Steps Calculator (DIY Porch & Entry)
Estimate concrete volume and 40/50/60/80 lb bag counts for DIY porch and entry steps — riser, tread, width, and step count inputs with IRC R311.7 compliance check.
Tank or Trench Concrete Calc
Calculate concrete volume for tanks or trench structures easily.
Flowable Fill (CLSM) Calculator
Calculate CLSM volume in yd³, ft³, and m³ for utility trenches, abandoned tanks/vaults, and pipe or culvert fill — with overfill factor, weight at 100–125 pcf, and ACI 229R compliance check.
Wall Concrete Calculator
Vertical concrete wall volumes, single or multi-segment.
Retaining Wall Calculator
Estimate SRW blocks, drainage gravel, geogrid layers, and installed cost — with IBC 2021 §1807.2.3 compliance checks for walls over 4 ft.
Concrete Bag Calculator by Project
Turn slab, footing, post hole and sonotube dimensions into an exact bag count — five shape modes, imperial or metric, with +5%/+10% waste buffers.
80 lb Bag Concrete Calculator
One 80 lb bag yields 0.60 cu ft — 45 bags per cubic yard. Convert any volume into bag counts, coverage and pallets for 40/50/60/80 lb bags.
Concrete Pallet Calculator
A pallet holds 42 bags of 80 lb concrete — 3,360 lb and 0.93 cubic yards, 3 bags short of a full yard. Calculate pallets, weight, and delivery needs for any bag size or project.
Concrete Bag Cost Calculator
An 80 lb bag of concrete runs about $6.47, or $6.15 at pallet quantity. Calculate total bag cost and compare against ready-mix delivery pricing.
Concrete Driveway Cost Calculator
Estimate cost of concrete for driveways.
Concrete Block Calculator
Estimate concrete blocks, mortar, grout, reinforcement, and cost for CMU block walls.
Cinder Block Calculator
Calculate cinder block quantity, mortar bags, and total wall cost including openings deduction and waste allowance.
CMU Block Calculator
Estimate CMU block quantity, deduct openings, add waste, and calculate full installed wall cost.
Curb & Gutter Concrete Calculator
Calculate concrete volume for curb and gutter in yd³, ft³, and m³ with a gutter pan and curb body breakdown. Barrier, rollover, and mountable presets with AASHTO GDPS-4-M compliance check.
Post Hole Concrete Calculator
Estimate concrete, gravel, and bag counts for fence posts, gate posts, deck posts, and more.
Crushed Concrete Estimator Calculator
Calculate crushed concrete volume, tons, coverage, and total cost with compaction adjustments.
Fence Post Concrete Calculator
Calculate concrete bags and volume for fence posts by total fence length and post spacing, with post displacement subtraction and IRC depth check.
Gravel Calculator
Calculate gravel volume, tons, cubic yards, and estimated cost.
Gravel Driveway Calculator
Estimate driveway gravel in tons, yards, and total cost.
Pea Gravel Calculator
Estimate pea gravel needed for landscaping.
Gravel Tons to Yards Calculator
Convert between gravel tons and cubic yards.
Gravel Cost Calculator
Estimate total project cost including delivery for gravel projects.
Rebar Calculator
Estimate rebar bars, linear footage, weight, and cost for slabs, footings, and walls.
Wire Mesh Calculator
Estimate welded wire fabric rolls, sheets, weight, and cost for concrete slabs, driveways, sidewalks, and industrial floors.
Rebar Weight Calculator
Convert rebar linear footage to weight in lbs, tons, and kg, or reverse from a tonnage spec to footage — for procurement, logistics, and cost planning.
Rebar Spacing Calculator
Calculate rebar bar count from a target c-t-c spacing or find spacing from a bar count, with ACI 318-19 compliance checks for slabs, footings, walls, and beams.