Free Tools & Calculators

Quick-use calculators for common controls engineering tasks. No sign-up, no ads, no tracking beyond standard analytics.

4–20 mA Scaling Calculator

Convert between mA signal, ADC counts, and engineering units for any 4–20 mA sensor or transmitter.

VFD Braking Resistor Calculator

Size the minimum braking resistor ohm value and peak power for a VFD application given motor kW and deceleration time.

All calculators are provided for preliminary estimation only. Always verify results against manufacturer documentation and applicable standards before making engineering decisions. See our Terms of Use.