Construction Calc

Construction Calc is a metric-first calculator built for builders, tilers,
decorators and DIYers working in France, Germany, the UK and the US.

TEN CALCULATORS, ONE APP
• Concrete - volume and bag count (EU 25kg / US 60lb / 80lb bags)
• Tile - tile count and boxes, straight or diagonal lay
• Paint - litres or gallons by coats and coverage
• Drywall / Plasterboard - sheet count, EU and US sizes
• Blocks & Bricks - UK, US, or your own custom dimensions and mortar joint
• Stairs - risers, going, stringer length, and a real headroom check
against UK Part K or US IRC limits
• Roof - pitch, rafter length, surface area
• Area & Volume - rectangle, triangle, circle, trapezoid
• Right Angle - 3-4-5 squaring check and diagonal/hypotenuse
• Board Feet - timber volume in US board feet and m³

BUILT FOR A REAL JOBSITE
• Fully offline - no internet connection needed, ever
• No sign-up, no account, no login
• Metric input with explicit mm/cm/m selection - never guess whether a
number means centimetres or millimetres
• Imperial mode with separate feet/inches fields - no fractions to type
• Works with your real block, brick, tile or timber sizes — not just one
region's presets

SAVE YOUR JOBS
Save calculations to a named job as you work through a site. Free covers
one job. Construction Calc Pro (one-time purchase, not a subscription)
unlocks unlimited saved jobs and lets you send the full materials list -
quantities and workings — straight to WhatsApp, SMS or email instead of
retyping it for the merchant.

No ads. No tracking. No subscription.