Chronograph Average Speed Calculator – Distance ÷ Elapsed Time
Use any measured distance and the chronograph reading to get average speed in km/h and mph—more flexible than a fixed tachymeter scale.
Chronograph vs tachymeter
- This tool — any distance + elapsed H/M/S → average speed
- Tachymeter scale — assumes a fixed base (often 1 km or 1 mile) and reads units/hour from seconds alone
- Use a chronograph to measure the time; use known course distance for the math
- Pace (min per km / min per mile) is shown for running-style checks
Formula: speed = distance ÷ time (time in hours).
Educational calculator. Not a certified motorsport timing system.
Frequently Asked Questions
How to calculate average speed? Distance ÷ elapsed time in hours.
Same as tachymeter? No — tachymeter scales assume a fixed distance base on the dial.
Units? km, miles, or metres in; km/h and mph out.