Speed Converter
All Speed Conversions
Metre per second to Kilometre per hourMetre per second to Mile per hourMetre per second to KnotMetre per second to Foot per secondKilometre per hour to Metre per secondKilometre per hour to Mile per hourKilometre per hour to KnotKilometre per hour to Foot per secondMile per hour to Metre per secondMile per hour to Kilometre per hourMile per hour to KnotMile per hour to Foot per secondKnot to Metre per secondKnot to Kilometre per hourKnot to Mile per hourKnot to Foot per secondFoot per second to Metre per secondFoot per second to Kilometre per hourFoot per second to Mile per hourFoot per second to Knot
Practical Applications
Transportation, meteorology, engineering, sports, aeronautics, and physics.
Historical Context
Speed measurements became systematized with the development of mechanical transportation devices and the need to quantify their performance.
Did You Know?
The knot, used in maritime and air navigation, was originally measured by throwing a rope with knots every 47 feet and counting how many knots passed by in 28 seconds.
Common pairs of Speed
Metre per second
Kilometre per hour
Mile per hour
Speed Converter
Our Speed converter supports all major units used worldwide for this type of measurement, covering both metric (SI) and non-metric systems. Select any source and destination unit from the dropdowns, enter your value, and the result appears immediately. You can also adjust the number of decimal places to match your precision requirements.
All Speed conversions use standardized conversion factors defined by international scientific bodies such as the BIPM (Bureau International des Poids et Mesures) and NIST. Results are computed with full floating-point precision, so you can trust the output for technical, scientific, and everyday use.
Yes. Our Speed converter handles conversions between metric (SI) units and non-metric systems, including imperial and US customary units. Simply select the units you want to work with — the converter handles the math automatically, regardless of which system each unit belongs to.
Select the source unit in the first dropdown, type your value in the input field, then select the target unit in the second dropdown. The converted result appears instantly. You can swap the units at any time to perform the reverse conversion, and you can adjust the decimal places shown in the output.
Yes, the Speed converter is completely free, with no sign-up or registration required. It works on any device and browser — including smartphones and tablets — with no usage limits.