Millimeters Per Hour (mm/h) - Speed / Velocity Conversions

Millimeters per hour is a unit of Speed or Velocity in the Metric System. It measures the number of millimeters traveled in an hour. The symbol for millimeters per hour is mm/h and the International spelling for this unit is millimetres per hour.

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Select one of the millimeters per hour conversions below:

Unit Summary

The following tables provide a summary of the Speed or Velocity units (Per Hour, Per Minute, Per Second and Per Millisecond) within their respective measurement systems.

Per Hour

Unit	Symbol	Measurement System	Description
inches per hour	in/h	US Customary Units/Imperial System	36 in/h = 1 yd/h
feet per hour	ft/h	US Customary Units/Imperial System	1 ft/h = 12 in/h
yards per hour	yd/h	US Customary Units/Imperial System	1 yd/h = 3 ft/h
miles per hour	mph	US Customary Units/Imperial System	1 mph = 5280 ft/h
millimeters per hour	mm/h	Metric System	1 m/h = 1000 mm/h
centimeters per hour	cm/h	Metric System	1 m/h = 100 cm/h
decimeters per hour	dm/h	Metric System	1 m/h = 10 dm/h
meters per hour	m/h	Metric System	base unit
kilometers per hour	km/h	Metric System	1 km/h = 1000 m/h
knot	kn	Non-SI (International)	1 knot = 1.15078 mph

Per Minute

Unit	Symbol	Measurement System	Description
inches per minute	in/m	US Customary Units/Imperial System	36 in/m = 1 yd/m
feet per minute	ft/m	US Customary Units/Imperial System	1 ft/m = 12 in/m
yards per minute	yd/m	US Customary Units/Imperial System	1 yd/m = 3 ft/m
miles per minute	mi/m	US Customary Units/Imperial System	1 mi/m = 5280 ft/m
millimeters per minute	mm/m	Metric System	1 m/m = 1000 mm/m
centimeters per minute	cm/m	Metric System	1 m/m = 100 cm/m
decimeters per minute	dm/m	Metric System	1 m/m = 10 dm/m
meters per minute	m/m	Metric System	base unit
kilometers per minute	km/m	Metric System	1 km/m = 1000 m/m

Per Second

Unit	Symbol	Measurement System	Description
inches per second	in/s	US Customary Units/Imperial System	36 in/s = 1 yd/s
feet per second	ft/s	US Customary Units/Imperial System	1 ft/s = 12 in/s
yards per second	yd/s	US Customary Units/Imperial System	1 yd/s = 3 ft/s
miles per second	mi/s	US Customary Units/Imperial System	1 mi/s = 5280 ft/s
millimeters per second	mm/s	Metric System	1 m/s = 1000 mm/s
centimeters per second	cm/s	Metric System	1 m/s = 100 cm/s
decimeters per second	dm/s	Metric System	1 m/s = 10 dm/s
meters per second	m/s	Metric System	base unit
kilometers per second	km/s	Metric System	1 km/s = 1000 m/s

Per Millisecond

Unit	Symbol	Measurement System	Description
millimeters per millisecond	mm/ms	Metric System	1 m/ms = 1000 mm/ms
centimeters per millisecond	cm/ms	Metric System	1 m/ms = 100 cm/ms
decimeters per millisecond	dm/ms	Metric System	1 m/ms = 10 dm/ms
meters per millisecond	m/ms	Metric System	base unit
kilometers per millisecond	km/ms	Metric System	1 km/ms = 1000 m/ms

Note: For Speed or Velocity conversions, US Customary Units and the Imperial System are equivalent.

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