About IHCalc

IHCalc (Industrial & Health Calculators) is a free toolkit of industrial engineering and health & fitness calculators built for engineers, factory managers, maintenance teams, technicians, students and everyday users. Every calculator is interactive, mobile-friendly, and shows its formula so you can verify the math.

Our goal is simple: cut the time between a question on the shop floor and a reliable number. Whether you need to size a cable, estimate a compressor's energy bill, or benchmark OEE, the tool you need should be one click away.

We use standard textbook formulas (IEC, ISO, ASHRAE, NEC where applicable). Calculators are intended for screening and quick checks — always validate critical designs against authoritative engineering references.