Speed Converter
km/h, mph, m/s, knots — switch between any of them. Useful for running paces, driving speeds and sailing.
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km/h, mph, m/s, knots — switch between any of them. Useful for running paces, driving speeds and sailing.
How to use Speed Converter
- Open the toolNo signup and nothing to install; it works as soon as the page loads.
- Set “Value”
- Set “From”
- Set “To”
- Read the resultChange any input and the result is recalculated immediately.
Worked example with the defaults
- MPH · 60 kmh = 37.2823 mph
- 37.2823
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Speed Converter only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- What is a knot?
- One nautical mile per hour, used in aviation and maritime. 1 knot ≈ 1.852 km/h.