Speed conversion
Kilometer per hour to Meter per second converter
Convert km/h to m/s instantly, choose the displayed precision, and verify the result with the formula and reference table below.
Meter per second (m/s)
Rounded for display only; calculations retain full precision.
Rounding and precision rules
- Convr calculates first and rounds the displayed result only once, at the final step.
- The default is a maximum of 6 decimal places; trailing zeros are removed.
- Very small values that would appear as zero, and values of 10¹² or more, use scientific notation.
- Display precision is not measurement uncertainty. For scientific, engineering, or regulated work, retain only the digits justified by the source measurement.
Practical context
Understanding this conversion
Kilometers per hour are familiar from road travel and vehicle specifications. Meters per second are normally preferred in equations for acceleration, momentum, kinetic energy, and stopping distance.
The displayed decimal multiplier is rounded, but the underlying relationship is exactly 5/18. Convr calculates through the defined base factors and rounds only the visible result.
Reviewed August 16, 2026.
Calculation
Kilometer per hour to Meter per second formula
m/s = km/h × 0.277778
Calculations retain full precision and the result is rounded only for display.
Worked example
For 10 km/h, the result is 2.777778 m/s. Substitute 10 km/h into the formula to obtain 2.777778 m/s.
A numerical value expressed in meter per second is usually smaller than the same measurement expressed in kilometer per hour, because 1 km/h equals 0.277778 m/s.
Kilometer per hour to Meter per second reference table
Common values rounded to a maximum of 6 decimal places.
| Kilometer per hour (km/h) | Meter per second (m/s) |
|---|---|
| 1 km/h | 0.277778 m/s |
| 5 km/h | 1.388889 m/s |
| 10 km/h | 2.777778 m/s |
| 50 km/h | 13.888889 m/s |
| 100 km/h | 27.777778 m/s |
Understanding the units
About Kilometer per hour and Meter per second
Kilometer per hour (km/h)
One kilometer per hour (km/h) equals 0.277777778 m/s, the base relationship used for this speed conversion.
Meter per second (m/s)
Meter per second (m/s) is the base unit used by Convr for speed calculations.
When this conversion is useful
Kilometer per hour to Meter per second conversion is useful for road travel, aviation, marine navigation, athletics, weather reports, and physics calculations. It lets you compare the same speed across documents, tools, or standards that use different units.
Learn with Convr
Conversion guides
Metric vs Imperial Units: A Practical Comparison
Understand how metric, US customary, and Imperial units differ, where each system is used, and how to convert between them reliably.
Read guide →FoundationsSignificant Figures and Rounding in Unit Conversions
Learn when to round conversion results, how significant figures preserve measurement meaning, and why more decimals do not guarantee more accuracy.
Read guide →Answers at a glance
Frequently asked questions
How do I convert km/h to m/s exactly?
Divide the kilometers-per-hour value by 3.6, which is equivalent to multiplying it by 5/18.
What is 100 km/h in meters per second?
One hundred kilometers per hour are approximately 27.777778 meters per second.
How does Convr round Kilometer per hour to Meter per second results?
Convr keeps full numeric precision during the calculation and rounds only the displayed result. The default is a maximum of 6 decimal places, with selectable precision on this page.
Can I convert negative or decimal kilometer per hour values?
Yes. The converter accepts positive, negative, decimal, and scientific-notation values. Negative values are physically meaningful for some scales, such as temperature, but not for every measured quantity.
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