Construction & Material Calculators
Calculate exact ready-mix concrete, gravel tonnage, mulch bags, brick counts, board footage, paint gallons, and code-compliant stair layouts with real-time jobsite safety buffers.
Paint Calculator — Gallons, Cans & Coats Estimator
Calculate paint gallons and exact 1-gal / 5-gal / quart can breakdowns for rooms with door and window deductions.
Concrete Slab Calculator — Patio, Driveway & Shed Slabs
Calculate exact cubic yards, weight in tons, and 60lb/80lb bag counts for flat concrete pours, driveways, and patios.
Concrete Pad Calculator — AC, Generator & Equipment Pads
Specialized small pad calculator for AC units, generators, hot tubs, and mailbox footings with thickened edge support.
Concrete Calculator — Slabs, Footings, Columns & Steps
The master concrete calculator supporting rectangular slabs, round columns, trench footings, and stairs with visual diagrams.
Gravel Calculator — Cubic Yards & Tons Needed
Estimate cubic yards, US tons, UK metric tonnes, and wheelbarrow loads for crushed stone, pea gravel, and river rock.
Mulch Calculator — Bags or Bulk Yards Needed
Calculate 2 cu.ft bags or delivered bulk cubic yards with custom irregular bed inputs and depth recommendations.
Paver Calculator — How Many Pavers Do You Need?
Calculate paver unit counts with pattern waste (herringbone, basketweave), bedding sand volume, and polymeric joint sand.
Cubic Yard Calculator — Convert Any Dimensions
Universal 3D volume calculator converting mixed feet, inches, yards, and meters into cubic yards, cubic meters, and tons.
Cubic Feet Calculator — Volume of Boxes, Drums & More
Calculate cubic feet, gallons, and liters for moving boxes, drums, refrigerators, aquariums, and storage units.
Board Foot Calculator — Lumber Volume & Cost
Calculate board footage (FBM) for hardwood and dimensional lumber with cost estimation and standard lumber tables.
Stair Calculator — Rise, Run & Riser Height (Code Compliant)
Calculate step rise and run, stringer hypotenuse lengths, and US/UK code compliance flags with live SVG stair cross-section.
Tile Calculator — How Many Tiles Do You Need?
Calculate exact tile count, box requirements, grout weight in lbs, and pattern waste for floor and backsplash projects.
Flooring Calculator — Hardwood, Laminate & Vinyl Plank Boxes
Multi-room summation calculator for hardwood, LVP, laminate, and engineered planks with carton count and waste formulas.
Brick Calculator — How Many Bricks Do You Need? (US & UK)
Calculate brick counts for single or double wythe walls with US Modular and UK metric brick standards plus mortar bags.
Cement Calculator — Bags Needed for Your Concrete Mix
Calculate exact bags of Portland cement (94lb US / 25kg UK) plus sand and gravel required for on-site concrete mix ratios.
Gravel Driveway Calculator — Cost & Materials Estimate (Base + Top Layer)
Calculate 2-layer driveway gravel (sub-base + surface layer), scale tons, cubic yards, and total project cost across straight, L-shaped, and turnaround driveways.
Zero Duplicate Content
Every calculator features distinct primary use-case formulas, custom packing yields, and unique trade-specific output mechanics.
US & UK Dual Standards
Native support for US Imperial units (feet, inches, 94lb/80lb bags, tons) and UK British standards (meters, mm, 25kg bags, metric tonnes).
100% Client-Side Engine
Fast calculations without page refreshes, signups, API rate limits, or paywalls. Accessible on desktop, tablet, and smartphone jobsites.