A complete suite of engineering calculators for electronics, RF, instrumentation, physics and general technical work.
Convert 4–20 mA or 0–10 V signals to engineering units and back.
Open Calculator →Convert length, mass, temperature, pressure, volume, speed, energy, power and more.
Open Converter →Work out volts, amps, resistance and power from any two known values.
Open Calculator →Calculate power, voltage, current and power factor for AC and DC circuits.
Open Calculator →Convert between frequency and wavelength for sound and EM waves.
Open Calculator →Use Howard’s AI Prompt Starter Pack to generate technical explanations, documentation, emails and more — instantly.
Buy Howard’s AI Prompt Starter Pack