100 kilometers per hour (kph) is equal to approximately 27.7778 meters per second (mps).
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To convert speed from kilometers per hour to meters per second, you divide the speed value by 3.6 because 1 kilometer equals 1000 meters and 1 hour equals 3600 seconds, making the conversion factor 1000/3600 = 1/3.6.
Conversion Tool
Result in mps:
Conversion Formula
The formula to convert kilometers per hour (kph) to meters per second (mps) is:
mps = kph ÷ 3.6
This formula works because 1 kilometer equals 1000 meters, and 1 hour equals 3600 seconds. So converting kph to mps requires converting kilometers to meters and hours to seconds:
- 1 kph = 1000 meters / 3600 seconds
- = 1000 / 3600 meters per second
- = 1 / 3.6 mps
Example: To convert 100 kph to mps:
- 100 ÷ 3.6 = 27.7778 mps
Conversion Example
- Convert 50 kph to mps:
- Divide 50 by 3.6
- 50 ÷ 3.6 = 13.8889 mps
- Convert 80 kph to mps:
- Divide 80 by 3.6
- 80 ÷ 3.6 ≈ 22.2222 mps
- Convert 120 kph to mps:
- Divide 120 by 3.6
- 120 ÷ 3.6 ≈ 33.3333 mps
- Convert 90 kph to mps:
- Divide 90 by 3.6
- 90 ÷ 3.6 = 25 mps
Conversion Chart
The chart below shows speeds in kph from 75.0 to 125.0 and their corresponding values in mps. To use, find the kph value in the left column, and read across to see the meters per second equivalent.
| Speed (kph) | Speed (mps) |
|---|---|
| 75.0 | 20.8333 |
| 80.0 | 22.2222 |
| 85.0 | 23.6111 |
| 90.0 | 25.0000 |
| 95.0 | 26.3889 |
| 100.0 | 27.7778 |
| 105.0 | 29.1667 |
| 110.0 | 30.5556 |
| 115.0 | 31.9444 |
| 120.0 | 33.3333 |
| 125.0 | 34.7222 |
Related Conversion Questions
- How fast is 100 kph in meters per second exactly?
- What does 100 kilometers per hour convert to in mps for physics calculations?
- How do you manually convert 100 kph into meters per second without a calculator?
- Is 100 kph closer to 27 or 28 meters per second?
- What is the formula to change 100 kph speed into mps unit?
- How many meters per second equals 100 kilometers per hour?
- Can you show step-by-step how 100 kph converts to meters per second?
Conversion Definitions
kph (Kilometers per hour): It is a unit of speed expressing the number of kilometers traveled in one hour. Used worldwide for measuring speed of vehicles, it combines metric distance (kilometers) with time measured in hours. One kph equals 1000 meters per 3600 seconds.
mps (Meters per second): A unit for speed representing meters traveled in one second. It is a fundamental unit in physics and engineering, often used for scientific calculations. One meter per second equals moving one meter every second, which is a smaller time scale than kph.
Conversion FAQs
Why is the divisor 3.6 used in converting kph to mps?
The divisor 3.6 comes from converting kilometers to meters (1000 meters = 1 km) and hours to seconds (3600 seconds = 1 hour). Since speed is distance over time, dividing by 3.6 adjusts the units from kilometers per hour to meters per second accurately.
Can this conversion be reversed to convert mps to kph?
Yes, to convert meters per second back to kilometers per hour, multiply the mps value by 3.6. This reverses the division and changes the units from meters per second to kilometers per hour.
Does this conversion affect the physical meaning of speed?
No, the speed’s physical meaning stays the same. Only the units change. Whether speed is expressed in kph or mps, it still describes how fast an object moves but using different measurement scales.
Is the conversion formula accurate for all speeds?
Yes, the formula applies to any speed value in kph, whether small or very large. The relationship between kilometers and meters, and hours and seconds, remains constant, so the formula reliably converts any speed.
Why can’t we simply multiply by 1000 or 3600 separately?
Multiplying by 1000 or 3600 alone doesn’t correctly convert units because the time and distance units must both change. Dividing by 3.6 combines the two conversions into one step. Multiplying only by 1000 converts distance but not time, and vice versa.