Millimeters/hour to kilometers/second (mm/hr to km/s) converter

You can enter a value in either the millimeters/hour (mm/hr) or kilometers/second (km/s) input fields. For an understanding of the conversion process, we include algebraic formulas.

See conversions to common Speed units and easily switch Speed units in the two tabbed section below. Use the search bar above to find additional conversions.

Tip: Click the "Swap" button to switch from converting millimeters/hour to kilometers/second to kilometers/second to millimeters/hour.

millimeters/hour (mm/hr)

 

kilometers/second (km/s)

 
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1 mm/hr = 0 km/s 1 km/s = 3599999999.712 mm/hr

Algebraic Steps / Dimensional Analysis Formula
mm/hr * 1 mm/s
3600 mm/hr		 * 1 km/s
1000000 mm/s		 = km/s

Direct Conversion Formula
mm/hr * 1 km/s
3599999999.712 mm/hr		 = km/s

If you would like to switch between Speed units, select from the tables below

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