Measure Converter

Did You Know?

The meter was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole! Today, it’s based on the distance light travels in a vacuum in 1/299,792,458 seconds.

The foot dates back to ancient Egypt, where it was based on the Pharaoh’s actual foot size.

Fun fact: The nautical mile (1,852 meters) is longer than a land mile (1,609 meters) because it’s based on Earth’s circumference.

Quick Reference

• 1 km = 1000 m
• 1 m = 100 cm
• 1 cm = 10 mm
• 1 mm = 1000 μm (micrometers)
• 1 μm = 1000 nm (nanometers)
• 1 in = 2.54 cm
• 1 ft = 12 in
• 1 yd = 3 ft
• 1 chain = 22 yd
• 1 rod (pole) = 5.5 yd
• 1 fathom = 6 ft
• 1 mi = 1760 yd
• 1 nmi (nautical mile) = 1852 m
• 1 league = 3 mi