How do I convert km/h to m/s?

Use the formula shown above or enter a value to see km/h converted to m/s instantly.

What is the formula for km/h to m/s?

The converter calculates m/s by applying the category-specific conversion factor for Speed.

When should I use km/h vs m/s?

km/h and m/s are both part of the Speed category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Speed Conversion Summary

Convert km/h to m/s

Use the live converter below to translate between Kilometer per hour (km/h) and Meter per second (m/s). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

km/h → m/s

Kilometer per hour

km/h

Meter per second

0.2778

m/s

Rounded result (4 decimals max)

Formula

1 km/h = 0.2778 m/s

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from m/s to km/h.

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km/h to m/s quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Kilometer per hour (km/h)	Meter per second (m/s)
0.25 km/h	0.0694 m/s
0.5 km/h	0.1389 m/s
1 km/h	0.2778 m/s
2 km/h	0.5556 m/s
5 km/h	1.3889 m/s
10 km/h	2.7778 m/s
25 km/h	6.9444 m/s
100 km/h	27.7778 m/s

m/s back to km/h

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

Meter per second (m/s)	Kilometer per hour (km/h)
0.25 m/s	0.9 km/h
0.5 m/s	1.8 km/h
1 m/s	3.6 km/h
2 m/s	7.2 km/h
5 m/s	18 km/h
10 m/s	36 km/h
25 m/s	90 km/h
100 m/s	360 km/h

Explore more speed conversion summary

km/h → mph

Convert into Mile per hour without leaving SwapUnits.

Compare all speed conversion summary

View the full unit roster, charts, and tips for Speed Conversion Summary conversions.

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