About Length Units
Length is one of the fundamental physical quantities. The metric system (SI) uses meter as the base unit, while the imperial system uses foot. This tool supports instant conversion between metric and imperial units.
Common Conversions
1 Meter (m)=100 cm = 1000 mm
1 Kilometer (km)=1000 meters
1 Inch (in)=2.54 centimeters
1 Foot (ft)=12 inches = 30.48 cm
1 Yard (yd)=3 feet = 91.44 cm
1 Mile (mi)=1.609344 kilometers
Tips
- ✓ All units convert automatically as you type
- ✓ Click on results to copy
- ✓ Supports decimal input up to 6 decimal places
- ✓ Common: 1 inch = 2.54 cm, 1 foot = 30.48 cm
FAQ
How many centimeters in an inch?
1 inch equals exactly 2.54 centimeters. This is the international standard definition.
How many meters in a foot?
1 foot equals 12 inches, which is 0.3048 meters or 30.48 centimeters.
What is the difference between metric and imperial?
Metric (SI) is the international decimal system using meter as base unit. Imperial is mainly used in US and UK, using feet and inches.
How to convert nautical miles to kilometers?
1 nautical mile equals 1.852 kilometers. It is mainly used in navigation and aviation.
Last Updated: 2026-06-04✓ Expert Verified
Simple and fast.
Converts all length units.
Perfect for measurements!