UOM Converter
Conversions between US customary and metric units, with the values the trade uses: 60, 75 and 90 °C insulation ratings, lug and breaker torque, box fill in cubic inches (NEC) or millilitres (CEC), and copper and aluminum prices per pound or kilogram. Most have a table of common values.
Fractions of an inchFractional inches ↔ decimal inches ↔ millimetres, for drill bits, punches and enclosure sizes.- LengthFeet, metres, inches and millimetres.
- TemperatureConductor insulation and termination ratings are 60, 75 and 90 °C.
- PowerHorsepower, kilowatts and BTU per hour (electric heat).
- Light levelFoot-candles and lux.
- TorqueLug and breaker termination torque.
- WeightPounds and kilograms.
- Metal priceCopper and aluminum prices per pound ↔ per kilogram, for surcharges.
- Box fill volumeThe NEC uses cubic inches, the CEC uses millilitres.
Quick answers
- Fractions of an inch: 1-23/32" → Millimetres: 43.66 mm
- Length: 1,000 ft → Metres: 304.8 m
- Temperature: 167 °F → Celsius: 75 °C
- Power: 10 hp → Kilowatts: 7.457 kW
- Light level: 50 fc → Lux: 538.2 lx
- Torque: 35 lbf·in → Newton-metres: 3.95 N·m
- Weight: 50 lb → Kilograms: 22.68 kg
- Metal price: $4.50/lb → Per kilogram: $9.9208/kg
- Box fill volume: 18 in³ → Millilitres (cm³): 295 mL
Other topics
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