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Speed Distance Time
Calculate speed, distance or time for any journey easily.
⭐ Used by 7,890 people

The Speed Distance Time Calculator solves for any one of the three values when the other two are known. Essential for travel planning and physics problems.

The SDT Triangle Formula

Speed = Distance ÷ Time
Distance = Speed × Time
Time = Distance ÷ Speed

Real World Examples

ScenarioCalculationResult
Mumbai to Pune150km ÷ 75km/h2 hours
Train at 120km/h for 3h120 × 3360 km
300km in 4 hours300 ÷ 475 km/h

Speed Conversion

1 km/h = 0.2778 m/s
1 mph = 1.6093 km/h
60 km/h = 16.67 m/s
100 mph = 160.9 km/h
📖 Complete Guide
Formulas, examples, tips & FAQs
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Frequently Asked Questions

What is the speed distance time formula?

Speed equals distance divided by time. Rearranged, distance equals speed times time, and time equals distance divided by speed. The calculator solves for any one of the three.

How do I calculate average speed?

Divide the total distance travelled by the total time taken. The calculator gives the result in your chosen units such as km/h or m/s.

Can it convert between speed units?

Yes. You can work in different units, and the calculator handles conversions between common speed units like kilometres per hour and metres per second.