Speed Unit Converter Online
速度换算公里小时迈节马赫
Convert across 6 speed units: m/s, km/h, mph, knots, ft/s and Mach — for driving, aviation, sailing and pace running, fully local.
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How to Use
- Enter the value you want to convert
- Select the source unit and target unit
- Result appears instantly — reverse conversion supported
- Conversions use standard factors computed locally — works offline too
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FAQ
How do km/h and mph convert?
1 mph = 1.609344 km/h; a US 65 mph limit equals about 104.6 km/h.
What is a knot?
1 knot = 1 nautical mile per hour ≈ 1.852 km/h, standard in aviation and marine navigation.
Will my data be uploaded?
No, all conversions run locally in your browser.