Field Calc for iPhone

Measure once.
Know what to order.

Construction Field Calculator turns site measurements into inspectable material estimates. Work in US customary or metric units, save calculations with a job, and return to the inputs, formulas and assumptions later. Your workspace stays on your iPhone.

Start with concrete, area, dimensional math and conversion, plus three active jobs. Pro Lifetime adds eight specialist calculators, unlimited jobs, PDF and CSV field reports, and custom material presets. One purchase. No subscription. JSON backups remain free.

Quantity and geometry estimates, not structural design or code certification. Verify measurements, manufacturer coverage and local requirements before ordering or building.