Conversor de Velocidade
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
1 m/s = 3,6 km/h = 2,23694 mph = 1,94384 kn = 3,28084 ft/s
About this calculator
The Speed Converter from UtilizAí is an online tool that allows you to convert speed values between five different units: meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), knots (kn), and feet per second (ft/s). Simply enter a number, select the source unit and the target unit, and get the result instantly.
The tool works by using fixed conversion factors, such as 1 m/s = 3.6 km/h, 1 m/s = 2.23694 mph, 1 m/s = 1.94384 kn, and 1 m/s = 3.28084 ft/s. It multiplies or divides accordingly, ensuring accurate calculations. No installation is needed, as everything runs in the browser.
This converter is useful in various everyday situations, such as planning trips (converting speed limits between countries), in sports activities (comparing performance in running or cycling), in maritime or aviation navigation (knots), and in engineering or physics projects requiring unit consistency. It also helps students and professionals dealing with speed data from different contexts.
When using the tool, make sure the source unit is correct; common mistakes include confusing km/h with mph or forgetting to convert from m/s to km/h (multiply by 3.6). Also note that conversion factors are approximate: for example, 1 mph equals 1.60934 km/h, and the converter uses precise values. For critical calculations, it is advisable to double-check results with reliable sources.
Frequently asked questions
How do I convert km/h to m/s?
Divide the value in km/h by 3.6. For example, 72 km/h divided by 3.6 equals 20 m/s.
What is the difference between mph and knot?
Mph (miles per hour) is used mainly in countries like the US and UK for land speed. Knot is used in maritime and aviation navigation, equal to one nautical mile per hour (1 kn = 1.15078 mph).
Can I convert very large or small values?
Yes, the tool accepts any real number, including decimals. For very large values, the result is displayed in scientific notation if needed.
Does the converter work offline?
No, an internet connection is required because the tool runs on the UtilizAí server.
Are the results accurate?
Yes, the calculations use precise conversion factors with up to 5 decimal places, ensuring accuracy for most purposes.