Full name: petametre
Plural form: petameters
Symbol: Pm
Alternate spelling: petametres
Category type: length
Scale factor: 1.0E+15
The SI base unit for length is the metre.
1 metre is equal to 1.0E-15 petameter.
Valid units must be of the length type.
You can use this form to select from known units:
A petametre (American spelling: petameter, symbol: Pm) is a unit of length equal to 10^15 metres.