0M

0M (zero M) or 0-M may refer to:

• 0m, an abbreviation for zero meridian, or Prime Meridian
• 0m, an abbreviation in measurement for zero metres
  • 1E0m², an abbreviation for square metre, an order of magnitude for expressing area
  • 1E0m³, an abbreviation for cubic metre, an order of magnitude for expressing volume
• 0-m, an abbreviation for zero manifold
• Several terms related to 0 (number)
  • Zero map, see constant function
  • Zero morphism, a kind of morphism in category theory
  • Zero matrix, a matrix with all entries being zero
• Agent Zero-M a range of secret agent toy weapons by Mattel Toys