Popular conversions
Use the interactive converter to enter your own value and select any supported pair in this family.
Compare miles per gallon and liters per 100 kilometers. Values are reciprocal, not linear. Use the interactive converter to enter your own value and select any supported pair in this family.
Use the interactive converter to enter your own value and select any supported pair in this family.
Each row links to the live converter. The factor column uses the family’s stated base unit for linear families; for specialized reciprocal or numeral systems, use the live converter and the family-specific explanation.
| Source unit | Factor to base unit | Tool |
|---|---|---|
US miles per gallonmpg-us | 1 | Convert this unit ↗ |
imperial miles per gallonmpg-uk | 1 | Convert this unit ↗ |
liters per 100 kilometersL-100km | 1 | Convert this unit ↗ |
kilometers per literkm-L | 1 | Convert this unit ↗ |
Unit standards, historical definitions and approximations can vary. Cooking volume-to-mass conversions depend on the ingredient; currencies require an exchange rate; sizing systems may be discrete; and logarithmic quantities such as decibels need purpose-built formulas rather than a linear scale.
For laboratory, medical, aviation, engineering or other safety-critical work, verify the definitions and standards that apply to your use case.