30 mph to kmh
30 miles per hour equals 48.28 kmh.
Chinese version: 30 英里/时等于多少公里/时
Result
30 mph = 48.28 kmh
Formula: 30 × 1.609 = 48.28
Conversion steps
- The conversion factor: 1 mile per hour = 1.609 kmh.
- Multiply: 30 × 1.609 = 48.28 kmh.
- So 30 mile per hour = 48.28 kmh (30 mph = 48.28 kmh).
Nearby values
Frequently asked questions
Multiply 30 by the conversion factor 1.609: 30 × 1.609 = 48.28 kmh.
1 mile per hour = 1.609 kmh. For the reverse conversion, 1 kmh = 0.6214 miles per hour.
Yes — the factor 1.609 follows the international (SI) definition of these units, so 30 mph = 48.28 kmh is exact to the displayed precision.