Conversion factor

Conversion of length

  • 1 centimetre = 10-2 metre
  • 1 millimetre = 10-3metre
  • 1 micrometre = 10-6metre
  • 1 nanometre = 10-9 metre
  • 1 angstrom= 10-10 metre
  • 1 fermi = 10-15 metre
  • 1 kilometre = 103 metre
  • 1 austronomical unit = 1AU=1.496 × 1011 metre
  • 1 light year = 1 ly = 9.461 ×1015metre
  • 1 mile = 1.609 ×103 metre
  • 1 yard = 0.9144 metre
  • 1 inch = 0.0254 metre

Conversion of time

  • 1 mili second= 10-3 second
  • 1 micro second = 10-6 second
  • 1 neno second = 10-9 second
  • 1 hour = 60 minute = 3600 second
  • 1 day = 24 hours =86400 second
  • 1 year = 365 day = 3.156× 107 second
  • 1 sec = 10-8second

Conversion of mass

  • 1 gram = 10 -3 kg
  • 1 quintal = 100 kg
  • 1 tonne = 1000 kg
  • 1 slug = 14.59 kg
  • 1 Chandersekhar limit = 1.4 × mass of sun = 2.8 × 1030 kg
  • 1 atomic mass unit = 1u = 1.66×10-10