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Speed Conversion Table
Complete speed conversion reference with 7+ units
Quick Reference Speed Conversion Table
Common speed conversions at a glance
| From | Meter per second (m/s) | Kilometer per hour (km/h) | Mile per hour (mph) | Foot per second (ft/s) | Knot (kn) | Mach number (Mach) | Speed of light (c) |
|---|---|---|---|---|---|---|---|
| 1 Meter per second (m/s) | 1.00 | 3.6 | 2.2369 | 3.2808 | 1.9438 | 0.002915 | 3.34e-9 |
| 1 Kilometer per hour (km/h) | 0.277778 | 1.00 | 0.621371 | 0.911344 | 0.539957 | 0.00081 | 9.27e-10 |
| 1 Mile per hour (mph) | 0.44704 | 1.6093 | 1.00 | 1.4667 | 0.868976 | 0.001303 | 1.49e-9 |
| 1 Foot per second (ft/s) | 0.3048 | 1.0973 | 0.681818 | 1.00 | 0.592484 | 0.000889 | 1.02e-9 |
| 1 Knot (kn) | 0.514444 | 1.852 | 1.1508 | 1.6878 | 1.00 | 0.0015 | 1.72e-9 |
| 1 Mach number (Mach) | 343 | 1,234.8 | 767.2691 | 1,125.33 | 666.7387 | 1.00 | 1.14e-6 |
| 1 Speed of light (c) | 299,792,458 | 1,079,252,848.71 | 670,616,629.38 | 983,571,056.43 | 582,749,918.41 | 874,030.49 | 1.00 |
Quick Reference Speed Conversion Table
Common speed conversions at a glance
| From | Meter per second (m/s) | Kilometer per hour (km/h) | Mile per hour (mph) | Foot per second (ft/s) | Knot (kn) | Mach number (Mach) | Speed of light (c) |
|---|---|---|---|---|---|---|---|
| 1 Meter per second (m/s) | 1.00 | 3.6 | 2.2369 | 3.2808 | 1.9438 | 0.002915 | 3.34e-9 |
| 1 Kilometer per hour (km/h) | 0.277778 | 1.00 | 0.621371 | 0.911344 | 0.539957 | 0.00081 | 9.27e-10 |
| 1 Mile per hour (mph) | 0.44704 | 1.6093 | 1.00 | 1.4667 | 0.868976 | 0.001303 | 1.49e-9 |
| 1 Foot per second (ft/s) | 0.3048 | 1.0973 | 0.681818 | 1.00 | 0.592484 | 0.000889 | 1.02e-9 |
| 1 Knot (kn) | 0.514444 | 1.852 | 1.1508 | 1.6878 | 1.00 | 0.0015 | 1.72e-9 |
| 1 Mach number (Mach) | 343 | 1,234.8 | 767.2691 | 1,125.33 | 666.7387 | 1.00 | 1.14e-6 |
| 1 Speed of light (c) | 299,792,458 | 1,079,252,848.71 | 670,616,629.38 | 983,571,056.43 | 582,749,918.41 | 874,030.49 | 1.00 |
All Speed Units
How to Use This Conversion Table
- Find your starting unit in the left column (e.g., "1 Meter per second")
- Read across to find the equivalent in your target unit
- Multiply the table value by your actual measurement
- Example: To convert 5 meters per second, multiply the table value by 5
💡 Pro Tip:
For precise calculations or values not in this table, use our interactive speed calculator for instant, accurate conversions.