Speed, Distance & Time Calculator
Enter any two of speed, distance, and time, and instantly solve for the third.
How to use the speed distance time calculator
- Choose your distance and speed units.
- Fill in any two of speed, distance, and time.
- Click Calculate to solve for the remaining value.
Planning sessions and segments
Knowing any two variables lets you plan the third: estimate how long a 60 km ride takes at 28 km/h, or what average speed a target finish time requires. It is the same relationship whether you cycle, run, or swim.
One relationship, three useful answers
Speed, distance, and time are bound by a single relationship, and knowing any two gives the third. That lets you plan a ride from whichever facts you have: how long a 60 km route takes at 28 km/h, or what average speed a target finish time demands.
Average speed versus moving speed
Remember that stops at junctions, cafes, and climbs pull your overall average below your moving speed. When planning a long day, build in time for those stops rather than assuming your moving average across the whole route, or you will arrive later than the maths suggests.
Frequently asked questions
What is the speed, distance, time formula?
Speed = distance ÷ time, distance = speed × time, and time = distance ÷ speed. This tool rearranges the formula automatically based on which fields you fill in.
What is the speed, distance, time formula?
Speed = distance / time, distance = speed x time, and time = distance / speed. The calculator rearranges it automatically based on the two values you enter.
Why is my ride average slower than my cycling speed?
Stops, junctions, and climbs lower your overall average compared with your moving speed. Factor in stops when estimating arrival times.
Does this work for running and swimming too?
Yes. The relationship is universal, so you can use it for any activity by entering consistent units of speed, distance, and time.
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