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Convert between 5 speed units — metric, imperial, and nautical. Perfect for travel, sports, aviation, and maritime speed conversions. All results are instant and processed entirely in your browser.
Enter the speed value you want to convert.
Select the source unit from the From dropdown.
Select the target unit from the To dropdown.
The converted value updates instantly. Use Swap to flip units.
Convert 100 km/h to mph.
Convert 250 knots to km/h.
Convert 5 m/s to km/h.
Convert 30 mph to ft/s.