Miles per Hour to Kilometers per Hour
1 mph = 1.609344 km/h
Converter Calculator
1 Miles per Hour (mph) = 1.609344 Kilometers per Hour (km/h)
Explanation
Multiply by 1.609344 because one mile equals exactly 1.609344 kilometers.
Common Conversion Values
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 0.5 | 0.804672 |
| 1 | 1.609344 |
| 2 | 3.218688 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 20 | 32.18688 |
| 30 | 48.28032 |
| 60 | 96.56064 |
| 100 | 160.9344 |
| 120 | 193.12128 |
How to use this hub
- Choose a converter family.
- If converting to/from grams from a volume unit, select an ingredient.
- For pure unit changes (volume↔volume or weight↔weight), use universal conversions.
If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.
Frequently Asked Questions
What defines this conversion?
The factor is derived from exact meter, foot, mile, hour, and knot definitions.
Is the reverse conversion available?
Yes. Use the switch button or open the Kilometers per Hour (km/h) to Miles per Hour (mph) hub to view the mirror conversion.
Can I use decimals?
Yes. Decimal inputs are supported so fractional speed values remain precise in calculator output.