Rules of Thumb

1 milliliter = 1 cubic centimeter = 1 gram

• Metric System
• Imperial System
• US Customary System
• SI Units
• Ancient:

  • Roman:

    • 1 foot = 12 inches
    • 1 mile = 5,280 feet
    • 1 mile = 1,760 yards
    • 1 mile = 1,609.34 meters

  • Greek:

  • Egyptian:

    • 1 cubit = 28 fingers
    • 1 cubit = 24 fingers
    • 1 cubit = 18 inches
    • 1 cubit = 1.5 feet
    • 1 cubit = 0.4572 meters
    • 1 cubit = 0.5 meters

  • Babylonian:

  • Chinese:

  • Mayan:

  • Inca:

  • Aztec: