Convert between miles per hour, kilometers per hour, meters per second, knots, and other speed units instantly.
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Speed measures how fast an object is moving. Different industries and regions use different speed units. In everyday life, mph is common in the US and UK, while km/h is used in most other countries. In aviation and maritime contexts, knots are the standard unit. Scientists often use meters per second (m/s).
Speed converters are useful for many daily activities including driving in countries with different units, understanding weather reports (wind speed), planning flights or voyages, tracking sports performance, and scientific calculations. Our speed converter supports all the major units used worldwide.
