Full name: kilometre/Gregorian year
Plural form: kilometres/year
Symbol: km/yr
Category type: speed
Scale factor: 3.1688738506811E-5
The SI derived unit for speed is the meter/second.
1 meter/second is equal to 31556.952 kilometre/Gregorian year.
Valid units must be of the speed type.
You can use this form to select from known units: