About this speed converter
Convert metres per second, kilometres per hour, mph and knots. Values convert through metres per second. One mph is 0.44704 m/s; one knot is one nautical mile of 1,852 m per hour. Use this workspace to prepare a result you can review before putting it to use. All processing takes place on your device, without an account or an upload of your inputs. Check the examples to understand the expected output, read the limitations for the supported scope, and reset the form when you want to start a separate task.
How it works
Values convert through metres per second. One mph is 0.44704 m/s; one knot is one nautical mile of 1,852 m per hour.
Try these examples
10 m/s → km/h
36 km/h
60 mph → km/h
96.56064 km/h
Limitations & privacy
Nonnegative values up to 1 trillion. This converts a constant speed, not acceleration or travel duration. Display uses up to 15 significant digits; floating-point rounding still applies.
Inputs and results stay in this browser. Only tool identifiers are stored for your recently used tools. You can clear that history from the directory.
A few good questions
How is the result produced?
Values convert through metres per second. One mph is 0.44704 m/s; one knot is one nautical mile of 1,852 m per hour.
Are my inputs sent to a server?
No. Inputs and results are processed locally and are not uploaded or included in telemetry. Copying or downloading is your choice.
What are the limits of this tool?
Nonnegative values up to 1 trillion. This converts a constant speed, not acceleration or travel duration. Display uses up to 15 significant digits; floating-point rounding still applies.
Updated September 19, 2026