MPH ↔ KPH Converter

Convert between miles per hour and kilometers per hour instantly

Miles per Hour (MPH)

Enter MPH value to convert to KPH

Kilometers per Hour (KPH)

Enter KPH value to convert to MPH

Conversion Result

60 MPH = 96.56 KPH

Approx: 60 mph = 96.6 km/h • 1.60934 conversion factor

📚 MPH ↔ KPH Conversion Details

MPH to KPH Formula

kph = mph × 1.609344

To convert miles per hour to kilometers per hour, multiply MPH by 1.609344.

KPH to MPH Formula

mph = kph ÷ 1.609344

To convert kilometers per hour to miles per hour, divide KPH by 1.609344.

Bidirectional Conversion

This converter works both ways simultaneously:

Type in MPH → KPH updates automatically
Type in KPH → MPH updates automatically
No buttons to click - works as you type

Common Uses

Speed limit conversion
Vehicle speedometers
Weather reports (wind speed)
Sports measurements

📏 How This Converter Works

This is a bidirectional converter that works in real-time:

MPH → KPH: When you type in the MPH field, the KPH field automatically updates
KPH → MPH: When you type in the KPH field, the MPH field automatically updates
No swapping needed: Both conversions happen simultaneously
Real-time: Updates happen as you type, no button clicks required

// Bidirectional Conversion Logic:
kph = mph × 1.609344
mph = kph ÷ 1.609344

// Example 1: Type "60" in MPH
kph = 60 × 1.609344 = 96.56064

// Example 2: Type "100" in KPH
mph = 100 ÷ 1.609344 = 62.1371

📊 Speed Conversion Table

MPH	KPH	Common Use
30 mph	48.28 km/h	Urban speed limit
60 mph	96.56 km/h	Highway speed
70 mph	112.65 km/h	Motorway speed
100 mph	160.93 km/h	High-speed driving
55 mph	88.51 km/h	US highway limit
80 mph	128.75 km/h	European highways

⚡ Speed Comparison

Quick Reference:

1 mph = approximately 1.6 kph
1 kph = approximately 0.62 mph
5 mph ≈ 8 kph
10 mph ≈ 16 kph
25 mph ≈ 40 kph
50 mph ≈ 80 kph

❓ Frequently Asked Questions

Q: What is the exact conversion factor?

A: 1 mile per hour = 1.609344 kilometers per hour exactly.

Q: How many KPH is 70 MPH?

A: 70 mph is approximately 112.65 km/h (70 × 1.609344).

Q: How many MPH is 100 KPH?

A: 100 km/h is approximately 62.14 mph (100 ÷ 1.609344).

Q: Why do cars have both MPH and KPH?

A: Many vehicles display both for international use, as different countries use different systems.

Q: How accurate is this converter?

A: This converter uses the exact conversion factor (1.609344) and provides results with 2 decimal places precision.