Spike's Calculators

Average Speed of Kilometres per Hour

Spike VM

Calculate your average speed in kilometres per hour based on the distance traveled in a specific period.

Speed from Time and Distance

Distance Traveled in Kilometres km
Travel Time hr min sec
Decimal Rounding #


Distance Converted to Miles mi
Speed in Kilometres/Hour km/hr
Speed in Miles/Hour mi/hr


  1. enter the distance traveled in kilometres
  2. the time in hours, minutes and seconds
  3. number of digits after the decimal point for the results


  1. the distance traveled converted to miles
  2. your average speed in kilometres per hour
  3. the average speed in miles per hour


Speed = distance/time

Example Calculation

distance travelled = 154 kilometres
the time it took to travel this distance = 7 hours and 12 minutes
Changing the 12 minutes into decimal hour format;
There are 60 minutes in one hour; to change one minute into hours, divide one by 60.
1 ÷ 60 = 0.01666666666666666666666666666667.
Multiply the 12 minutes by 0.01666666666666666666666666666667 to covert to a decimal hour.
12 * 0.01666666666666666666666666666667 = 0.2
7 hours and 12 minutes = 7.2 hours
Divide the distance by 7.2 hours to get the kilometre-per-hour speed;
154 ÷ 7.2 = 21.3888 rounded to 21.4
Your average speed of travel in this example is 21.4 kilometres an hour.


one hour = 60 minutes
one minute = 0.01666666666666666666666666666667 hours
one kilometre (km) = 0.621371192237334 miles (mi)
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