Understanding Length Units
Metric System (SI)
- Base unit: Meter (m)
- Prefixes:
- Kilo (k) = ×1000
- Centi (c) = ×0.01
- Milli (m) = ×0.001
- Common uses:
- Kilometers: Long distances
- Meters: Room dimensions
- Centimeters: Small objects
Imperial/US System
- Common units:
- Mile: Long distances
- Yard: Sports fields
- Foot: Room dimensions
- Inch: Small measurements
- Conversions:
- 1 mile = 1760 yards
- 1 yard = 3 feet
- 1 foot = 12 inches
Maritime Navigation
- Nautical mile:
- Based on Earth's circumference
- Used in aviation and marine navigation
- 1 nautical mile = 1.852 kilometers