Speed Unit Converter

Convert between 7 speed units instantly - km/h, mph, m/s, knots and more

Convert to All Units

Kilometer/hour (km/h)-
Mile/hour (mph)-
Meter/second (m/s)-
Foot/second (ft/s)-
Knot (kn)-
Mach (Ma)-
Speed of Light (c)-

Speed Units Reference

Unit Symbol In m/s Common Use
Kilometer/hour km/h 0.2778 Car speedometers (most countries), weather reports
Mile/hour mph 0.4470 Car speedometers (US, UK), baseball pitch speed
Meter/second m/s 1 Scientific measurements, physics calculations
Foot/second ft/s 0.3048 Bullet velocity, engineering (US)
Knot kn 0.5144 Maritime & aviation speed, wind speed
Mach Ma 343 Aircraft speed, supersonic jets
Speed of Light c 299,792,458 Astronomy, relativistic physics

速度测量与转换指南

速度是物体覆盖距离的速率。它是一个标量,代表速度矢量的模。在日常生活中,我们在道路旅行、航空和科学测量中都会遇到速度。

常见速度单位

为什么转换是必要的

了解不同的速度单位对于国际旅行和技术协作至关重要。例如,欧洲的汽车速度计显示 km/h,而美国的驾驶员必须理解 mph。同样,海员和飞行员依靠节在国际水域进行精确导航。