Unit Conversion

Temperature

• K (Kelvin) = 273 + ° C (Celsius)

Pressure - SI unit: Pa (Pascal) = N / m²

• 1 bar = 100,000 Pa
• 1 bar = 1.019 kg / cm ²
• 1 bar = 0.9869 atm
• 1 atm = 1.0133 bar

Heat - SI unit: J (Joule)

• 1 J = 0.2388 cal
• 1 cal = 4.18 J
• 1 kWh = 3600 kJ

Length - SI unit: m (meter)

• 1 m = 3.281 ft = 39.37 in
• 1 foot (ft) = 30.48 cm = 12 in
• 1 inch (in) = 2.54 cm

Surface - SI unit: m

• cm ² = 0.1550 sqin
• sqin = 6.452 cm ²
• sqfoot = 929 cm ² = 144 sqin

Surface charge 

• 1 W / cm ² = 6.452 W / sqin
• 1 W / sqin = 0.155 W / cm ²

Volume - SI unit: m

• 1 dm ³ = 1 liter = 0.0353 CuFt
• 1 cu = 16.387 cc

Mass - SI unit: kg

Debit m / s

• Ventilation: 1 CFM (cubic feet per minute) = 1.699 m³ / h
• Water: 1 GPM (gallon per minute) = 227.712 l / h

Specific heat - SI unit: J / kg

• 1 cal / g = 4184 J / kg

Power - SI unit: W (Watt)

• 1 VA (volt.ampère) = 1 W
• 1 cal / s = 4.1874 W