8 calculators
Engineering
Units, electrical, mechanical formulas.
Electrical3
- Ohm's Law Calculator — Voltage, Current, Resistance & PowerKnow any two of voltage, current, resistance and power? Get the other two, with the working.Open calculator
- Resistor Colour Code Calculator — 4, 5 & 6 BandRead a resistor's value from its 4, 5 or 6 colour bands — or find the bands for a value, with the nearest standard E24/E96 value.Open calculator
- Voltage Drop Calculator — Cable Size, Length & Power LossVoltage drop and power loss in a cable run — single-phase, three-phase or DC, copper or aluminium, mm² or AWG — and the size you need.Open calculator
Also useful here5
- Baud Rate CalculatorConvert bit rate to baud (and back) for BPSK, QPSK and QAM, or work out real UART serial throughput from baud, data bits, parity and stop bits.Open calculator
- Density Calculator — Density, Mass & VolumeSolve ρ = m ÷ V for density, mass or volume in any units, with common material densities and specific gravity.Open calculator
- Pressure ConverterConvert pressure between psi, bar, kPa, atm, kg/cm², mmHg and more — tyres, gas, weather and blood pressure.Open calculator
- Energy ConverterConvert energy between joules, calories, kcal, kWh, BTU, therms, electronvolts and more.Open calculator
- Power ConverterConvert power between watts, kW, horsepower (hp and PS), BTU/h and tons of refrigeration.Open calculator