BauKalk - Construction Calc

20 pro calculators with visual diagrams. Offline. Metric. DIN-compliant. No ads. Start free now!

BauKalk is the construction calculator for professionals and DIY builders.

20 specialized calculators with visual technical diagrams — everything you need on the job site, right on your iPhone. Works offline, metric, DIN-compliant.

FREE CALCULATORS: • Concrete — Volume, mix ratio, bags (C25/30, DIN 1045-2) • Tiles — Count, waste, layout plan, cost calculator • Stairs — Rise, tread, step measure (DIN 18065) • Gravel & Aggregate — Volume and weight for 7 materials • Angle Calculator — 3-4-5 method, check square • Pool Volume — Rectangle, round and oval

PRO CALCULATORS (€6.99/year or €19.99 lifetime): • Unit Converter • Rebar • Paint • Masonry • Roof • Screed • Foundation • Drywall • Patio • Electrical • Heating Load • Wallpaper • Asphalt • Wood Beam

WHY BAUKALK: • Visual diagrams — See what you're building • 100% Offline — No internet needed • DIN Standards — DIN 18065, DIN 1045-2, DIN EN 1997 • PDF Export — Save and share results • Shopping List — Copy and send via WhatsApp • No Ads — Ever • Calculation History — Last 20 calculations at your fingertips • German & English — Fully bilingual

BauKalk Pro: €6.99/year or €19.99 lifetime. 7-day free trial.

BauKalk Pro Subscription: • Yearly: €6.99/year — auto-renews unless cancelled at least 24 hours before the end of the current period. • Lifetime: €19.99 — one-time purchase, no subscription. • 7-day free trial for the yearly subscription. • Payment is charged to your Apple ID account. Manage and cancel in your Apple ID account settings.

Privacy: BauKalk does not collect any personal data. Terms of Use: https://baukalk.app/nutzungsbedingungen Privacy Policy: https://baukalk.app/datenschutz Support: pixeyo@gmail.com Web: https://baukalk.app