Speed, Distance & Time Calculator
Give any two of speed, distance and time — the third is worked out from speed = distance ÷ time.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
60km/h
= 37.2823 mph
Speed 60 km/hShow steps
- Speed = distance ÷ time = 120 ÷ 2 = 60 km/h.
How to use the calculator
- 1Choose whether you’re solving for speed, distance or time.
- 2Enter the other two values.
- 3Read the answer, with the imperial equivalent beside it.
One triangle, three formulas
Cover the quantity you want in the triangle D over S · T: cover D and you’re left with S × T; cover S and you get D ÷ T; cover T and you get D ÷ S. That’s all three rearrangements in one picture.
Frequently asked questions
What's the formula linking speed, distance and time?
Speed = distance ÷ time. Rearranged: distance = speed × time, and time = distance ÷ speed. Pick which one you're solving for and enter the other two.
Which units does it use?
Distance in kilometres, time in hours and speed in km/h. The result also shows the imperial equivalent (miles / mph / minutes) so you can read it either way.
How do I handle a time like 1 hour 30 minutes?
Enter it as decimal hours — 1.5. Thirty minutes is 0.5 hours, fifteen minutes is 0.25, and so on.