Speed Converter
Convert between km/h, mph, m/s and knots.
Result
Results are estimates for general information only and are not professional advice.
Speed conversion
Speed can be measured in kilometers per hour, miles per hour, meters per second or knots. This converter switches between all four using exact conversion factors — useful for driving, aviation, sailing and science.
Frequently Asked Questions
What is the Speed Converter?
Convert between km/h, mph, m/s and knots. It runs instantly in your browser and is completely free.
Is the Speed Converter free and does it require signup?
Yes. Every calculator on Calculatis is 100% free with no registration, and the values you enter are never stored.
How accurate is the Speed Converter?
It uses standard, widely-accepted formulas. Results are reliable estimates for general use and are not a substitute for professional advice.