What is the formula for kilometers per hour?
There is no such thing as a "kilometers per hour formula" because kilometers per hour is a unit.
However, there are many formulas for calculating speed in kilometers per hour. These formulas are all based on the relationship that states that speed is the ratio of a distance to a time:
In the case of miles per hour:
with:

: the velocity expressed in kilometers per hour [km/h] ; 
: the distance in kilometers [km] ; 
the duration in hours [h].
Please note that the time must be expressed only in the unit of hours (not minutes). For example, 2 hours and 45 minutes must be converted into hours:
Let's take the example of a vehicle that travels 220 km in 2 hours and 45 minutes. Its average speed is :
There is no such thing as a "kilometers per hour formula" because kilometers per hour is a unit.
However, there are many formulas for calculating speed in kilometers per hour. These formulas are all based on the relationship that states that speed is the ratio of a distance to a time:
In the case of miles per hour:
with:

: the velocity expressed in kilometers per hour [km/h] ; 
: the distance in kilometers [km] ; 
the duration in hours [h].
Please note that the time must be expressed only in the unit of hours (not minutes). For example, 2 hours and 45 minutes must be converted into hours:
Let's take the example of a vehicle that travels 220 km in 2 hours and 45 minutes. Its average speed is :
#  ID  Query  URL  Count 
