How to Convert Metres per second to Feet per second (m/s to ft/s)
Speed conversions come up with expressway limits in km/h, foreign car specs in mph and wind speeds reported in knots by the Meteorological Service. This guide shows how to convert metres per second into feet per second by hand, with examples and a quick-reference table.
The conversion
To convert metres per second to feet per second, multiply the value by 3.280839895. To go the other way, divide by the same number (or multiply by 0.3048). For a quick estimate, multiply by about 3.3.
Feet per second = metres per second × 3.280839895
Worked examples
- 3 m/s = 9.8425 ft/s
- 12.5 m/s = 41.0105 ft/s
- 75 m/s = 246.063 ft/s
Metres per second to Feet per second table
| Metres per second | Feet per second |
|---|---|
| 1 m/s | 3.2808 ft/s |
| 2 m/s | 6.5617 ft/s |
| 5 m/s | 16.4042 ft/s |
| 10 m/s | 32.8084 ft/s |
| 20 m/s | 65.6168 ft/s |
| 25 m/s | 82.021 ft/s |
| 50 m/s | 164.042 ft/s |
| 100 m/s | 328.084 ft/s |
| 250 m/s | 820.21 ft/s |
| 500 m/s | 1,640.42 ft/s |
| 1,000 m/s | 3,280.84 ft/s |
Common questions
Is m/s to ft/s exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Feet per second to Metres per second converter.
Mistakes to avoid
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Background
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
For any value, use the Metres per second to Feet per second Converter or browse all speed converters.
Run your own numbers: Metres per second to Feet per second Converter