Speed Converter
Convert km/h, mph, knots and meters per second with live results.
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About Speed conversion
Speed shows up everywhere from road signs to weather reports to sailing charts. Fiction Units converts between kilometers per hour and miles per hour for travel and driving, knots for marine and aviation speeds, and meters or feet per second for scientific and engineering use.
A useful reference: highway speeds are often quoted in km/h outside the US and mph inside it, while wind and boat speeds are typically given in knots.
Units supported: Meters/second, kilometers/hour, miles/hour, knots, feet/second.
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Frequently asked questions
What units can I convert with the Speed converter?
Meters/second, kilometers/hour, miles/hour, knots, feet/second.
How accurate is this speed converter?
This converter uses standard international definitions for every speed unit, so results are precise to several decimal places, accurate enough for cooking, travel, homework, or any everyday use.
Can I convert in both directions?
Yes, enter a value in either field and the other updates instantly. You can also tap the swap button to flip the two units, or use the copy-link button to share this exact conversion.