120 kilometers per hour is equal to 33.3333 meters per second.
Table of Contents
This conversion is done by changing kilometers to meters, and hours to seconds, since meters per second (mps) measure speed as meters traveled every second.
Conversion Tool
Result in mps:
Conversion Formula
The formula converts kilometers per hour (km/h) to meters per second (mps) using unit relations. Since 1 kilometer equals 1000 meters, and 1 hour equals 3600 seconds, the speed in mps is calculated by multiplying the km value by 1000, then dividing by 3600.
Formula:
mps = km × (1000 m / 1 km) ÷ (3600 s / 1 h) = km × 1000 / 3600
For example, to convert 120 km/h to mps:
- Multiply 120 by 1000 = 120,000 meters per hour
- Divide 120,000 by 3600 seconds = 33.3333 meters per second
Conversion Example
- Convert 90 km/h to mps:
- 90 × 1000 = 90,000 meters per hour
- 90,000 ÷ 3600 = 25 mps
- Convert 150 km/h to mps:
- 150 × 1000 = 150,000 meters per hour
- 150,000 ÷ 3600 ≈ 41.6667 mps
- Convert 100 km/h to mps:
- 100 × 1000 = 100,000 meters per hour
- 100,000 ÷ 3600 ≈ 27.7778 mps
- Convert 130 km/h to mps:
- 130 × 1000 = 130,000 meters per hour
- 130,000 ÷ 3600 ≈ 36.1111 mps
- Convert 110 km/h to mps:
- 110 × 1000 = 110,000 meters per hour
- 110,000 ÷ 3600 ≈ 30.5556 mps
Conversion Chart
| Speed (km/h) | Speed (mps) |
|---|---|
| 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 |
| 130.0 | 36.1111 |
| 135.0 | 37.5000 |
| 140.0 | 38.8889 |
| 145.0 | 40.2778 |
This chart helps you quickly find the equivalent meters per second for speeds between 95 and 145 kilometers per hour. Just locate the km/h value in the left column, and the corresponding mps value is shown right next to it.
Related Conversion Questions
- How fast is 120 km/h in meters per second?
- What does 120 kilometers per hour equal in mps?
- Can you convert 120 km/h speed to mps?
- How many meters per second is 120 km/h?
- Is 120 km/h faster than 33 mps?
- What is the mps equivalent of 120 km/h velocity?
- How to calculate meters per second from 120 km/h?
Conversion Definitions
km (kilometer): A kilometer is a metric unit of length equal to 1,000 meters. It is commonly used to measure distance or speed in many countries worldwide. One km is roughly 0.621 miles. It is part of the International System of Units (SI).
mps (meters per second): Meters per second is a unit of speed expressing the number of meters traveled in one second. It is the SI unit for velocity, often used in physics and engineering to represent speed in a precise and standard way.
Conversion FAQs
Why do we divide by 3600 when converting from km/h to mps?
Because there are 3600 seconds in an hour (60 seconds × 60 minutes), dividing by 3600 converts the time unit from hours to seconds, aligning the speed measurement to meters per second instead of meters per hour.
Can I use the formula km × 1000 / 3600 for any speed conversion from km/h to mps?
Yes, this formula works for any value given in kilometers per hour to convert into meters per second, since it directly converts kilometers to meters and hours to seconds consistently.
Does converting 120 km/h to mps change the actual speed?
No, converting units does not change the actual speed; it only expresses the same speed in a different unit system. 120 km/h and 33.3333 mps represent the same velocity.
What if I want more decimal places in the result?
You can adjust the number of decimal places shown by modifying the toFixed() parameter in the JavaScript code. For example, toFixed(6) shows six decimal places instead of four.
Is meters per second used more in science than kilometers per hour?
Yes, meters per second is preferred in scientific and engineering contexts because it is the SI unit of velocity, making calculations and comparisons easier within consistent units.