Engineering calculators
Quick, accurate calculators for everyday instrumentation and control work. Each tool explains the formula behind it, so you can check the result and learn the method. They work on phones, with no sign-up.
4-20 mA Signal Calculator
Convert between mA, percent and engineering units, with square-root extraction.
Open calculator →DP Level Calculator
Calculate differential pressure range and level for tanks.
Open calculator →OEE Calculator
Availability, performance, quality and OEE from shift data.
Open calculator →PID Tuning Calculator
Ziegler-Nichols closed-loop and open-loop tuning rules.
Open calculator →RTD Pt100 / Pt1000 Calculator
Resistance to temperature and back, using IEC 60751.
Open calculator →Engineering Unit Converter
Pressure, temperature and flow unit conversions.
Open calculator →These calculators are for learning and quick checks. Always verify critical values against manufacturer documentation, applicable standards and your site's engineering procedures. See our disclaimer.