TradeCalc

TradeCalc is the fast, practical calculator app built for tradesmen on the job.

No sign-up. No internet required. Open the app and start calculating.

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EQUAL SPACING CALCULATOR
Work out perfectly even spacing for fence posts, deck boards, ceiling spotlights, tiles, balusters, and more.

Enter your total span, object count, and object width. Get exact gap measurements instantly — with a visual layout diagram.

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MATERIAL ESTIMATOR
Stop over-ordering. Stop running short. Calculate exactly what you need for:

• Concrete — volume in m³ and number of bags
• Paint — litres and tin count
• Flooring — area with waste allowance, pack count
• Tiles — tile count with grout gap, 10% waste included
• Plasterboard — sheet count for walls and ceilings
• Gravel — volume and approximate weight in tonnes
• Decking boards — rows, boards per row, total count

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CUT LIST GENERATOR
Enter your stock length, required cut sizes, and saw blade kerf. TradeCalc calculates the most efficient cut order to minimise waste — and shows you exactly which cuts go on each piece of stock.

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UNIT CONVERTER
Fast conversions across:
• Length: mm, cm, m, km, inches, feet, yards, miles
• Area: mm², m², ft², acres, hectares
• Volume: mL, litres, m³, pints, gallons
• Pressure: Pa, kPa, MPa, bar, psi
• Temperature: °C, °F, Kelvin
• Slope: degrees, % grade, X:12 pitch

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ROOF PITCH & ANGLE
Point your phone at a surface and get a live angle reading using your phone's accelerometer. Or enter rise and run manually. Displays as degrees, % grade, and X:12 pitch with a visual diagram.

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WHY TRADECALC?

✓ Fully offline — works in basements, rural sites, steel structures
✓ No account required — open and go
✓ Large input fields — easy with gloves on
✓ Results update as you type — no Calculate button
✓ Recent calculations history — revisit any previous result
✓ Dark interface — easy to read in bright sunlight

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Built for builders, carpenters, landscapers, roofers, and tilers.