m/s to km/h: Convert meters per second to kilometers per hour

Answer
3.6 km/h = 1 m/s

1 m/s = 3.6 km/h. To convert meters per second to kilometers per hour, multiply by 3.6. To go back, multiply by 0.2777777778 (or divide by 3.6). Meters per second are the SI speed unit, common in physics and wind measurements.

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Mach assumes the speed of sound at sea level, 15 °C (340.29 m/s).
Converted speed
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How we calculated this

    Printed from sizebench.com/mph-to-kmh-speed-converter

    For estimating and educational purposes only. Results are approximate and are not a substitute for a licensed professional, the manufacturer's instructions or your local code. Disclaimer

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    Formula

    km/h = m/s × 3.6 m/s = km/h × 0.2777777778 10 m/s × 3.6 = 36 km/h

    m/s to km/h table

    m/skm/h
    1 m/s3.6 km/h
    2 m/s7.2 km/h
    3 m/s10.8 km/h
    5 m/s18 km/h
    8 m/s28.8 km/h
    10 m/s36 km/h
    12 m/s43.2 km/h
    15 m/s54 km/h
    20 m/s72 km/h
    25 m/s90 km/h
    30 m/s108 km/h
    40 m/s144 km/h
    50 m/s180 km/h
    100 m/s360 km/h
    340 m/s1,224 km/h

    Factors from NIST SP 811 and the BIPM SI Brochure; values rounded to 6 significant digits.

    Frequently asked questions

    How many km/h is 10 m/s?

    10 m/s = 36 km/h.

    How many m/s is 1 km/h?

    1 km/h = 0.277778 m/s.

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