Free tools
English
Speed converter
Convert speeds between m/s, km/h, mph, knots and ft/s. Use it in your browser, with no account required.
No account needed
Loading tool…
How to use
- 1Enter your values and choose the options.
- 2Run the tool and review the result.
- 3Copy the result or save it as a file.
Good to know
Check the input ranges and units. Your inputs are processed in this browser.
Ads may process connection data. Personalization follows your privacy choices. Privacy (English)
Worked input and output example
These results come from this tool’s actual engine using the sample values below, not your personal input or saved work. Load the example in the tool to inspect the same inputs.
Example input
| Field | Value |
|---|---|
| Value | 100 |
| Source unit | km/h |
| Target unit | mph |
Example result
- Result
- 62.1371192237
62.1371192237 mph
Input constraints
These are the actual input validation limits; they are not a guarantee that every accepted value is realistic or that a model applies to your situation.
- Value: Accepted range: 0 ≤ x ≤ 1,000,000,000,000
- Source unit: Available options: m/s / km/h / mph / kn / ft/s
- Target unit: Available options: m/s / km/h / mph / kn / ft/s