Average Speed Calculator
Calculate average speed from distance and travel time in kilometres per hour and miles per hour.
Set your values
Adjust the values, then calculate your result.
How to use Average Speed Calculator
- Enter the measurements or amounts in the fields above.
- Check that dimensions, rates and units match the labels.
- Select “Calculate average speed” to see a clear estimate and the formula used.
How the average speed calculator works
Average speed = distance divided by total elapsed time. The result is also converted to miles per hour.
Check your measurements and assumptions
This is an overall average, including any stops represented in the entered time. It is not a recommended or safe driving speed.
Review the estimate before you act
Compare this result with an independent measurement, supplier quote or institution guidance when the decision matters. Confirm that the units and assumptions match the labels above, and update the inputs when the conditions change. Keep a note of the values used so you can reproduce the estimate later. This calculator is a planning aid and does not replace professional, product-specific or local guidance.
How do I calculate average speed?
Divide the total distance by total elapsed time, making sure distance and time units are compatible.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.