next previous contents

Calculations

Round off

  • 8 = 10
  • 23 = 20
  • 32 ft/sec2 = 30
  • Pi = 3

Conversions

  • 1 atm = 14.7 (15) psi = 760 (750) mmHg
  • 1 g = 32.2 (30) ft/sec2 = 9.81 (10) m/s2
  • 1 hp = 550 ft-lb/s = 746 (750) W
  • 1 psi = 6894 Pa
  • etc...

Use metric!