28 mph is approximately 12.5072 meters per second (mps).
To convert 28 miles per hour to meters per second, multiply the speed value by the conversion factor between miles and meters, and adjust for time units. Since 1 mile equals 1609.344 meters and 1 hour equals 3600 seconds, the conversion is done by multiplying 28 by 1609.344 and dividing by 3600.
Conversion Tool
Result in mps:
Conversion Formula
Converting miles per hour (mph) to meters per second (mps) requires knowing how many meters are in a mile and how many seconds are in an hour. Since 1 mile = 1609.344 meters and 1 hour = 3600 seconds, the formula is:
mps = mph × 1609.344 / 3600
This works because you’re changing the distance unit from miles to meters and the time unit from hours to seconds. You multiply the speed by the number of meters in a mile to get meters per hour, then divide by the number of seconds in an hour to get meters per second.
Example using 28 mph:
- Multiply 28 by 1609.344 to get meters per hour: 28 × 1609.344 = 45061.632 meters/hour
- Divide 45061.632 by 3600 seconds/hour: 45061.632 ÷ 3600 = 12.5071 mps
Conversion Example
- Convert 45 mph to mps:
- 45 × 1609.344 = 72420.48 meters/hour
- 72420.48 ÷ 3600 = 20.1168 mps
- Convert 10 mph to mps:
- 10 × 1609.344 = 16093.44 meters/hour
- 16093.44 ÷ 3600 = 4.4704 mps
- Convert 33.5 mph to mps:
- 33.5 × 1609.344 = 53913.504 meters/hour
- 53913.504 ÷ 3600 = 14.9754 mps
- Convert 5 mph to mps:
- 5 × 1609.344 = 8046.72 meters/hour
- 8046.72 ÷ 3600 = 2.2352 mps
Conversion Chart
This chart shows miles per hour values from 3.0 to 53.0 and their converted meters per second equivalents. Use it to quickly find mps without calculation.
| MPH | MPS | MPH | MPS | MPH | MPS |
|---|---|---|---|---|---|
| 3.0 | 1.3411 | 19.0 | 8.4824 | 35.0 | 15.6467 |
| 6.0 | 2.6822 | 22.0 | 9.8306 | 38.0 | 16.9949 |
| 9.0 | 4.0233 | 25.0 | 11.1760 | 41.0 | 18.3432 |
| 12.0 | 5.3643 | 28.0 | 12.5072 | 44.0 | 19.6914 |
| 15.0 | 6.7054 | 31.0 | 13.8554 | 47.0 | 21.0396 |
| 16.0 | 7.1365 | 34.0 | 15.2036 | 50.0 | 22.3520 |
| 17.0 | 7.5676 | 37.0 | 16.5518 | 53.0 | 23.3443 |
Related Conversion Questions
- How many meters per second equals 28 mph exactly?
- What’s the fastest speed in mps if a car travels 28 miles per hour?
- How to convert 28 mph to meters per second without a calculator?
- Is 28 mph faster than 12 mps or slower?
- What formula do I use to change 28 mph into mps accurately?
- How many meters does a person travel in one second at 28 mph?
- Can 28 mph be directly converted to mps by multiplying by 0.447?
Conversion Definitions
mph (miles per hour): mph measure speed in how many miles are traveled in one hour. It’s widely used in the US and UK for speed limits and vehicle speeds. One mile equals 1609.344 meters, so mph shows distance covered over time by miles per hour.
mps (meters per second): mps is the metric unit for speed, indicating how many meters are traveled in one second. It’s commonly used in science and engineering for precise speed measurements. One meter is the base unit of length in the metric system.
Conversion FAQs
Why does converting mph to mps involve dividing by 3600?
Because mph measures distance per hour, and mps measures distance per second. Since 1 hour = 3600 seconds, dividing by 3600 converts the time unit from hours to seconds, making the speed compatible with meters per second.
Is there a shortcut or approximate factor to convert mph to mps?
Yes, multiplying mph by about 0.44704 gives an approximate mps value. This comes from dividing 1609.344 meters (one mile) by 3600 seconds (one hour). It’s quicker but less precise than using exact numbers.
Can I convert mps back to mph? How?
Yes, to convert mps to mph, multiply the mps value by 3600, then divide by 1609.344. This reverses the process, changing meters per second back to miles per hour.
Why is the conversion factor 1609.344 and not rounded?
1609.344 meters is the exact length of one mile by international agreement. Using the exact figure ensures higher precision in conversions, especially important in scientific calculations or engineering.
Does altitude or weather affect mph to mps conversion?
No, conversion between mph and mps is purely a unit change. Altitude or weather conditions might affect actual speed or performance, but the numerical conversion remains unchanged regardless of environment.