Kilometer/Hour to Yard/Second Converter
Convert Kilometer/Hour (km/h) to Yard/Second (yd/s) instantly. 1 km/h = 0.303781 yd/s.
Speed Converter
18 units available
1 km/h = 0.303781 yd/s
Formula:
yd/s = km/h × 0.3037814718With your value: 1 km/h = 0.30378147 yd/s
How big is that?
Everyday references on a logarithmic scale, all expressed in kilometer/hour so you can sanity-check the result.
Other Kilometer/Hour to Yard/Second conversions
Kilometer/Hour to Yard/Second Conversion Table
| Kilometer/Hour (km/h) | Yard/Second (yd/s) |
|---|---|
| 0.5 | 0.151891 |
| 1 | 0.303781 |
| 2 | 0.607563 |
| 5 | 1.518907 |
| 10 | 3.037815 |
| 15 | 4.556722 |
| 20 | 6.075629 |
| 25 | 7.594537 |
| 50 | 15.189074 |
| 100 | 30.378147 |
| 250 | 75.945368 |
| 500 | 151.890736 |
| 1000 | 303.781472 |
Yard/Second to Kilometer/Hour Conversion Table
| Yard/Second (yd/s) | Kilometer/Hour (km/h) |
|---|---|
| 0.5 | 1.64592 |
| 1 | 3.29184 |
| 2 | 6.58368 |
| 5 | 16.4592 |
| 10 | 32.9184 |
| 15 | 49.3776 |
| 20 | 65.8368 |
| 25 | 82.296 |
| 50 | 164.592 |
| 100 | 329.184 |
| 250 | 822.96 |
| 500 | 1,645.92 |
| 1000 | 3,291.84 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Kilometer/Hour (km/h)
Speed
Derived quantity: a defined length divided by a defined time interval.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Yard/Second (yd/s)
Speed
Derived quantity: a defined length divided by a defined time interval.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Kilometer/Hour to Yard/Second
To convert from Kilometer/Hour (km/h) to Yard/Second (yd/s), multiply the value by 0.3037814718.
Formula: yd/s = km/h × 0.3037814718
Reverse: km/h = yd/s × 3.29184
Step-by-Step Example
- Start with your value in Kilometer/Hour. For example: 5 km/h
- Multiply by the conversion factor: 5 x 0.3037814718
- The result is: 1.518907 yd/s
About Kilometer/Hour
Kilometers per hour is the most widely used unit of speed for vehicles in most countries.
Common uses: speed limits, vehicle speed, weather.
About Yard/Second
The yard/second (yd/s) is a unit of speed and velocity. One yard/second equals 0.9144 metre per seconds. UnitConvertLab converts it against every other speed unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: speed calculations, engineering and science, education.
Frequently Asked Questions
How many Yard/Second are in 1 Kilometer/Hour?
There are exactly 0.3037814718 Yard/Second in 1 Kilometer/Hour. This means the conversion factor from Kilometer/Hour to Yard/Second is 0.3037814718.
What is the formula to convert Kilometer/Hour to Yard/Second?
The formula to convert Kilometer/Hour to Yard/Second is: yd/s = km/h × 0.3037814718. For example, to convert 10 Kilometer/Hour to Yard/Second, you would multiply 10 by 0.3037814718.
What is a Kilometer/Hour?
Kilometers per hour is the most widely used unit of speed for vehicles in most countries.
What is a Yard/Second?
The yard/second (yd/s) is a unit of speed and velocity. One yard/second equals 0.9144 metre per seconds. UnitConvertLab converts it against every other speed unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Kilometer/Hour?
The Kilometer/Hour is commonly used in speed limits, vehicle speed, weather.
Related Speed Conversions
Cite this page
UnitConvertLab. (2026). Kilometer/Hour to Yard/Second converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/kmph-to-ydps