Miles Per Hour to Kilometers Per Hour Converter
Convert mph to kph instantly. Fast, accurate converter for speed, driving, and travel calculations. Perfect for international travel.
Common in US/UK
Used worldwide
Quick Conversion Formulas
Common Speed Reference Points
Walking Speed
3 mph / 5 kph
Running Speed
6-8 mph / 10-13 kph
City Speed Limit
25-35 mph / 40-55 kph
Highway Speed
65-70 mph / 105-115 kph
Conversion History
No conversion history yet
Your recent conversions will appear here
Need More Tools?
For calculations and conversions beyond international driving, try PresentForge - Build stunning presentations with AI assistance.
MPH to KPH Formula
kph = mph × 1.60934
How to convert miles per hour to kilometers per hour:
- Take the number of miles per hour you want to convert
- Multiply by 1.60934 (since 1 mile = 1.60934 kilometers)
- The result is the speed in kilometers per hour
Example:
Convert 60 mph to kph:
kph = 60 × 1.60934 = 96.56 kph
⚠️ Important Disclaimer
This tool provides estimates for informational purposes only. Results should not be relied upon for important decisions. Always consult with a qualified professional for advice specific to your situation.
MPH to KPH Conversion Table
| Miles Per Hour (mph) | Kilometers Per Hour (kph) | Common Use |
|---|---|---|
| 10 mph | 16.09 kph | Slow cycling |
| 20 mph | 32.19 kph | School zone limit |
| 30 mph | 48.28 kph | Residential area |
| 40 mph | 64.37 kph | Urban roads |
| 50 mph | 80.47 kph | Rural highways |
| 60 mph | 96.56 kph | Common cruising speed |
| 70 mph | 112.65 kph | Highway speed limit |
| 80 mph | 128.75 kph | High-speed driving |
| 90 mph | 144.84 kph | Fast highway driving |
| 100 mph | 160.93 kph | Very high speed |
Understanding MPH and KPH
Miles Per Hour (mph)
Miles per hour is the imperial unit of speed used primarily in the United States, United Kingdom, and some Caribbean nations. It measures how many miles are traveled in one hour.
The mph system is tied to the imperial measurement system, where distances are measured in miles, feet, and inches. It's deeply ingrained in American and British culture.
Common uses for mph:
- Speed limits in US/UK
- Vehicle speedometers
- Running pace calculations
- Aviation in some contexts
Kilometers Per Hour (kph)
Kilometers per hour is the metric unit of speed used by most countries worldwide. It measures how many kilometers are traveled in one hour and is part of the International System of Units (SI).
KPH is the standard in most of Europe, Asia, Africa, Australia, and South America. It's preferred for its consistency with the metric system used in science and engineering.
Common uses for kph:
- Speed limits worldwide
- International road signs
- Scientific measurements
- GPS and navigation apps
When to Convert MPH to KPH
Essential for:
- International travel planning
- Renting cars abroad
- Understanding foreign speed limits
- GPS device compatibility
Real-world scenarios:
- Driving in Europe from US/UK
- Comparing vehicle specifications
- Aviation and maritime navigation
- Sports and fitness tracking
Frequently Asked Questions
How many kph in 1 mph?
There are exactly 1.60934 kilometers per hour in 1 mile per hour. This is the standard conversion factor used worldwide for mph to kph conversions.
How to convert mph to kph?
To convert mph to kph, multiply the speed in miles per hour by 1.60934. For example: 50 mph × 1.60934 = 80.47 kph. This formula works for any speed value.
What is 60 mph in kph?
60 mph equals 96.56 kph (60 × 1.60934 = 96.56). This is a common highway cruising speed in the US, equivalent to just under 100 kph on European highways.
Why does the US use mph?
The US continues to use mph because it's part of the imperial system that was inherited from the British Empire. While most countries switched to the metric system (kph), the US retained its traditional measurements for roads and vehicles due to the high cost and complexity of converting all signage and infrastructure.
Which countries use kph vs mph?
KPH is used in most countries worldwide, including all of Europe, Asia, Africa, South America, and Australia. MPH is only used in a handful of countries: the United States, United Kingdom (though UK road signs increasingly show both), Liberia, and Myanmar. Some Caribbean nations also use mph.
Is 70 mph fast in kph?
Yes, 70 mph equals 112.65 kph, which is considered a high speed in most countries. This is a typical highway speed limit in the US, and would be slightly above many European highway speed limits (which typically range from 100-130 kph).
How do I remember the mph to kph conversion?
A simple rule of thumb: multiply mph by 1.6 to get kph (or multiply by 8 and divide by 5 for mental math). For rough estimates, remember that 60 mph ≈ 100 kph. This helps when traveling or reading speed limits abroad.