Free Engineering Tool
Measurement
Electrical Unit Converter
Pick what you are converting, type a value and read the result. Everything is calculated in your browser.
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Inputs
Convert
dB
mW
Edit either field; the other follows.
AWG
Use 0 for 1/0, -1 for 2/0, -2 for 3/0, -3 for 4/0.
mm²
Edit either field; the other follows (nearest AWG).
Readout
RESULT-
Reference values
- 1 HP (mechanical) = 745.7 W. 1 metric HP (PS) = 735.5 W. Motor nameplates in India usually mean mechanical HP, with 0.7457 kW per HP.
- 1 TR = 12,000 BTU/h = 3.517 kW of heat removal.
- dBm = 10 × log10(P / 1 mW). dBV = 20 × log10(V / 1 V). Voltage ratio dB = 20 × log10(V2 / V1), and power ratio dB = 10 × log10(P2 / P1).
- AWG diameter = 0.127 mm × 92(36 − n) / 39. Each 6 AWG steps halves the diameter, and each 3 AWG steps halves the area.
Common AWG sizes
| AWG | Diameter (mm) | Area (mm²) |
|---|
The wire-gauge figures are the standard AWG formula values, not a current rating. To size a cable for a load see the voltage drop calculator. For three-phase kW and kVA, use the three-phase power calculator.
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