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Speed Conversion: Convert m/s to km/s, km/s to m/s

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

Conversion Calculators

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

Convert m/s to km/s

Convert km/s to m/s

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

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

Definitions

Below are definitions relating to these conversion formulas:

Unit Symbol Measurement System Description
inches per second in/s US Customary Units (and Imperial)  
feet per second ft/s US Customary Units (and Imperial) 1 ft/s = 12 in/s
yards per second yd/s US Customary Units (and Imperial) 1 yd/s = 3 ft/s
miles per second mi/s US Customary Units (and Imperial) 1 mi/s = 1760 yd/s
1 mi/s = 5280 ft/s
millimeters per second mm/s Metric System 1000 mm/s = 1 m/s
centimeters per second cm/s Metric System 100 cm/s = 1 m/s
1 cm/s = 10 mm/s
decimeters per second dm/s Metric System 10 dm/s = 1 m/s
1 dm/s = 10 cm/s
meters per second m/s Metric System 1 m/s = 1000 mm/s
1 m/s = 100 cm/s
1 m/s = 10 dm/s
kilometers per second km/s Metric System 1 km/s = 1000 m/s