Speed Distance Time Calculator
Calculate speed, distance, or time
Hours
Minutes
Seconds
Formula
Speed Formula
Speed = Distance ÷ Time
Example: 100 km ÷ 2 hours = 50 km/h
Distance Formula
Distance = Speed × Time
Example: 60 mph × 3 hours = 180 miles
Time Formula
Time = Distance ÷ Speed
Example: 200 km ÷ 80 km/h = 2.5 hours
About Speed, Distance & Time
Speed, distance, and time are fundamentally related. If you know any two of these variables, you can calculate the third using simple formulas.
Units
- Metric: kilometers (km), kilometers per hour (km/h)
- Imperial: miles, miles per hour (mph)
- Science: meters (m), meters per second (m/s)
Conversions
- 1 mile = 1.609 kilometers
- 1 kilometer = 0.621 miles
- 1 mph = 1.609 km/h
- 1 km/h = 0.621 mph