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Length Conversion: m to km, km to m

Use the online conversion calculators to convert between meters (m) and kilometers (km).

Conversion Calculators

Enter your value in one of the conversion calculators below to convert m to km or convert km to m.

Convert m to km

Convert km to m

How to convert m to km: Use the conversion calculator on the left-hand side titled "Convert m to km". Enter a value in the m field and click on the "Calculate km" button. Your answer will appear in the km field.

How to convert km to m: Use the conversion calculator on the right-hand side titled "Convert km to m". Enter a value in the km field and click on the "Calculate m" button. Your answer will appear in the m field.

Definitions

Below are definitions relating to these conversion formulas:

Unit Symbol Measurement System Description
inches in or " US Customary Units (and Imperial)  
feet ft or ' US Customary Units (and Imperial) 1 foot = 12 inches
yards yd US Customary Units (and Imperial) 1 yard = 3 feet
miles mi US Customary Units (and Imperial) 1 mile = 1760 yards or 5280 feet
millimeter mm Metric System 1000 mm = 1 m
centimeter cm Metric System 100 cm = 1 m, 1 cm = 10 mm
decimeter dm Metric System 10 dm = 1 m, 1 dm = 10 cm
meter m Metric System 1 m = 1000 mm, 100 cm, 10 dm
kilometer km Metric System 1 km = 1000 m