速度转换器
转换 m/s、km/h、mph、节、ft/s。
Enter a value to convert instantly between units of speed — meters per second, kilometers per hour, miles per hour, knots and feet per second. Everything runs locally in your browser.
工作原理
- 1 Type a value.
- 2 Pick the units to convert from and to.
- 3 Copy the result, or Swap to reverse.
常见用例
- Convert km/h and mph for driving.
- Read boat or wind speed in knots.
- Convert running pace inputs.
- Compare speeds across units.
常见问题
Is my input sent to a server?
No. Every calculation runs locally in your browser — your input is never uploaded, stored or logged.
How fast is a knot?
1 knot = 1 nautical mile per hour = 1.852 km/h ≈ 1.151 mph.
Is it really free?
Yes — free, with no signup and no limits.