Speed Converter
Convert common speed units.
Enter a value to convert.
What this calculator does
Convert metres per second, kilometres per hour, miles per hour, feet per second, and knots.
Inputs and what they mean
- Value
- — number value.
- From
- — choice value.
- To
- — choice value.
How to use it
- Enter a value.
- Choose source and destination units, or swap them.
- Copy the instant conversion result.
Formula
Convert speed to the base unit (m/s), then from the base unit to the destination.
Worked example
Convert speed
See an instant speed conversion using standard unit definitions.
Reading the result
The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.
Limitations and assumptions
Results depend entirely on the figures you enter and are rounded for display. They are for general information and education, not professional advice.