Measure it.
Price it.
Send the quote.
88 free calculators built the way contractors actually estimate: real stock sizes, bag yields and waste allowances. Every result drops into a job, and every job turns into a client-ready quote.
Calculators by trade
See all 88 →Concrete & Masonry13
Slabs, footings, piers, blocks, bricks, pavers
Framing & Carpentry8
Studs, joists, rafters, sheet goods, trim
Roofing5
Roof area, pitch, coverings, gutters, ventilation
Walls & Finishes8
Drywall, plaster, insulation, paint, cladding
Flooring & Tile7
Boards, tile, grout, adhesive, carpet, screed
Decking & Fencing5
Deck boards, framing, stain, fences, chain link
Stairs, Ramps & Rails3
Stair geometry, ramps, balusters
Landscaping & Earthworks12
Mulch, gravel, soil, turf, digging, pools
Plumbing & Water4
Pipe volume, drain fall, tanks, flow rate
Electrical & Lighting4
Voltage drop, Ohm’s law, energy, lighting
Heating, Cooling & Air2
BTU sizing, heat output, extraction
Measure & Convert10
Area, volume, feet-inches, angles, units
Pricing & Business7
Markup, labour rate, bids, tax, travel
Most used
From takeoff to signed quote
No account, no subscription. Your jobs and prices stay on your device.
Run the numbers
Pick a calculator, enter your measurements in feet-and-inches or metric, and get quantities in the units you actually buy.
Add to a job
Each result becomes a section of materials. Your saved prices fill in automatically. Add labour, markup and sales tax.
Send the quote
Download a branded PDF with your logo and terms, share a link, or send it on WhatsApp. Mark it accepted, then turn it into an invoice.
Estimating guides
All guides →How to estimate concrete for a slab, step by step
Measure, convert, add the right waste and order the right way. Here is the method estimators use to get slab volumes right the first time.
7 min readConcrete & MasonryConcrete bags vs ready-mix: where the break-even really is
Bags are convenient, but mixing more than a cubic yard or metre by hand gets expensive in time and quality. Here is how to decide.
5 min readPricing & BusinessMarkup vs margin: the pricing mistake that quietly costs contractors money
A 20% markup is not a 20% margin. Learn the difference, see the conversion table, and price jobs so you keep the profit you planned.
6 min readPricing & BusinessHow to write a contractor estimate that wins work
What to include, what to leave out, and how to present price so clients compare you on value, not just the bottom line.
7 min readMeasure & ConvertWaste factors by trade: how much extra to order
A reference table of typical waste allowances for concrete, framing, sheet goods, flooring, tile, roofing and more, and when to go higher.
6 min readWalls & FinishesHow to estimate drywall for a room
Sheets, screws, mud and tape: measure once, count sheets the way installers hang them, and finish with the right consumables.
6 min read