Speed Distance Time Calculator Free
Calculate speed, distance, or time. Enter any two values to find the third.
Result shown in distance/time units (e.g., km/hr, miles/hr, m/s)
All calculations run in your browser — nothing is sent to any server. Back to all tools
Frequently Asked Questions
What is the formula for speed?
Speed = Distance ÷ Time. If you travel 100 miles in 2 hours, your speed is 50 miles per hour.
How do I convert m/s to km/h?
Multiply by 3.6. A speed of 10 m/s = 36 km/h.