Mile per hour to Mach (at sea level) (mph → Ma)
Convert mile per hour to mach (at sea level) instantly. The conversion factor is approximate to engineering precision.
Realtime·speed·imperial
Approx
mph
× 0.0013
Ma
0.001303
Precision [auto]
6
📐mph to Ma formulaApprox.
Ma = mph × 0.001303323615
Inverse: mph = Ma × 767.26914817466
Worked example: 1 mph = 0.001303323615 Ma
ℹ️About these units
Mile per hour (mph)
Road speed limits in US, UK.
Mach (at sea level) (Ma)
Speed of sound in dry air at 20 °C; approximate.
📊Reference table: mph → Ma
| Mile per hour (mph) | Mach (at sea level) (Ma) |
|---|---|
| 1 | 0.001303 |
| 2 | 0.002607 |
| 5 | 0.006517 |
| 10 | 0.013033 |
| 15 | 0.01955 |
| 20 | 0.026066 |
| 25 | 0.032583 |
| 50 | 0.065166 |
| 100 | 0.130332 |
| 250 | 0.325831 |
| 500 | 0.651662 |
| 750 | 0.977493 |
| 1,000 | 1.3033 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
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