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Speed converter

kilometer per hour to yard per second

Convert kilometer per hour (km/h) to yard per second (yd/s). Use an editable speed converter, conversion formula, and reference table.

0.3037814718

1 km/h = 0.3037814718 yd/s

Calculated in your browser

Conversion formula

yd/s = km/h × 0.3037814718

One kilometer per hour equals 0.3037814718 yard per second. Multiply your value in kilometer per hour by this factor to get yard per second. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 kilometer per hour:
5 × 0.3037814718 = 1.518907359 yd/s

Conversion table

kilometer per hour (km/h)yard per second (yd/s)
0.010.003037814718
0.10.03037814718
10.3037814718
20.6075629435
51.518907359
103.037814718
257.594536794
5015.18907359
10030.37814718
1000303.7814718

About these measurements

Speed is distance traveled per unit of time.

The base reference used here is the meter per second. One kilometer per hour is 0.2777777778 base units; one yard per second is 0.9144 base units.

Important distinctions

Mach is excluded because the speed of sound depends on medium and temperature.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

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

Multiply the quantity in km/h by 0.3037814718. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the yard per second to kilometer per hour converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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