Useful Formulae & Conversion Tables

  • 1 hp = 0.746 kW
  • Torque (Nm) = 9548 x Power (kW) / Speed (rpm)
  • atm x 1.01325 = bar
  • bar x (1x105) =  Pa
  • BTU/h x 0.293 = W
  • micron x (1x10-6) = m
  • W x 3.413 = BTU/hr

 

Temperature:

  • ºC = (5/9)*(ºF-32)

 

For Celsius to Fahrenheit: Multiply by 1.8 then add 32

For Fahrenheit to Celsius: Subtract 32 then divide by 1.8

Quick Reference Table;

Celsius/Centigrade Fahrenheit
-40 deg -40 deg
-17.8 deg 0 deg
- 10 deg 14 deg
0 deg 32 deg
5 deg 41 deg
10 deg 50 deg
15 deg 59 deg
20 deg 68 deg
25 deg 77 deg
30 deg 86 deg
35 deg 95 deg
40 deg 104 deg
50 deg 122 deg
60 deg 140 deg
70 deg 158 deg
80 deg 176 deg
90 deg 194 deg
100 deg 212 deg