Full name: millimillimetre/hour
Plural form: millimillimeters/hour
Alternate spelling: millimillimetres/hour
Category type: speed
Scale factor: 2.7777777777778E-10
The SI derived unit for speed is the meter/second.
1 meter/second is equal to 3600000000 millimillimetre/hour.
Valid units must be of the speed type.
You can use this form to select from known units: