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| Kilometers | Miles |
|---|---|
| 1 km | 0.62 mi |
| 5 km | 3.11 mi |
| 10 km | 6.21 mi |
| 25 km | 15.53 mi |
| 50 km | 31.07 mi |
| 100 km | 62.14 mi |
| 150 km | 93.21 mi |
| 200 km | 124.27 mi |
| 250 km | 155.34 mi |
| 500 km | 310.69 mi |
| Miles | Kilometers |
|---|---|
| 1 mi | 1.61 km |
| 5 mi | 8.05 km |
| 10 mi | 16.09 km |
| 25 mi | 40.23 km |
| 50 mi | 80.47 km |
| 100 mi | 160.93 km |
| 150 mi | 241.40 km |
| 200 mi | 321.87 km |
| 250 mi | 402.34 km |
| 500 mi | 804.67 km |
| km/h | mph | Common Use |
|---|---|---|
| 30 km/h | 18.6 mph | Residential zones (EU) |
| 50 km/h | 31.1 mph | Urban areas (EU) |
| 80 km/h | 49.7 mph | Rural roads (France) |
| 90 km/h | 55.9 mph | Country roads (EU) |
| 110 km/h | 68.4 mph | Dual carriageways (EU) |
| 120 km/h | 74.6 mph | Motorways (Spain/Italy) |
| 130 km/h | 80.8 mph | Motorways (France/Germany) |
The United Kingdom is unique among European nations in continuing to use miles for road distances. Despite adopting the metric system in 1965 for most measurements, miles were retained for road signage to avoid the massive cost of replacing millions of road signs and to preserve cultural continuity.
In 2022, the UK government confirmed that imperial measurements, including miles for road distances, would continue to be the official standard. This makes the UK one of only three countries worldwide (along with the USA and Liberia) that primarily uses miles instead of kilometers for road distances.
Kilometers to Miles:
Miles = Kilometers ÷ 1.60934
Miles to Kilometers:
Kilometers = Miles × 1.60934
Quick Mental Approximation:
Miles ≈ Kilometers × 0.6 (or km ÷ 8 × 5)
All UK speed limits are displayed in miles per hour (mph):
UK drivers traveling to mainland Europe must adapt to kilometers:
UK road signage exclusively uses miles and yards:
UK running and cycling events use a mix of miles and kilometers:
Popular Distances:
5K (3.1 mi), 10K (6.2 mi), Half Marathon 21.1K (13.1 mi), Marathon 42.2K (26.2 mi)
UK cycling clubs traditionally use miles for road rides, but sportives often advertise in both miles and kilometers.
The hugely popular UK parkrun events are all 5 kilometers (3.1 miles) - measured in km but often discussed in miles.
UK fuel efficiency uses miles per gallon (mpg), while Europe uses liters per 100 kilometers (L/100km):
Common Conversions:
Note: UK gallons (4.546L) are larger than US gallons (3.785L), so UK mpg figures appear higher than US mpg for the same vehicle.
Distance measurement standards around the world:
UK motorway services are strategically placed:
Interestingly, UK aviation and maritime use different units entirely:
The mile has deep roots in British history:
The modern mile (1,760 yards or 5,280 feet) was standardized in 1593 during Queen Elizabeth I's reign. The word "mile" comes from the Latin "mille passus" meaning "a thousand paces" - the distance a Roman legion would march in 1,000 double-steps.
When the UK metricated in the 1960s-70s, miles were deliberately kept for road transport due to:
Modern GPS devices handle conversions automatically:
Understanding distance conversions helps with eco-friendly driving:
Electric Vehicles:
Hybrid Vehicles:
Our calculator uses the exact conversion factor of 1 mile = 1.609344 kilometers, defined internationally since 1959. This provides precision to several decimal places, far exceeding the accuracy needed for any practical application including:
One mile equals exactly 1.60934 kilometers. This is the standard conversion used throughout the world, including the UK for converting road distances.
To convert kilometers to miles, divide by 1.60934. A quick approximation: divide km by 8 and multiply by 5. For example, 100km ÷ 8 = 12.5, then 12.5 × 5 = 62.5 miles (actual: 62.14 miles).
The UK uses miles for road distances. All road signs, speed limits, and vehicle odometers display miles and mph (miles per hour), making the UK one of the few European countries still using imperial measurements for driving.
100 kilometers per hour equals 62.14 miles per hour. This is a common conversion for UK drivers traveling in Europe where speed limits are in km/h.
London to Manchester: 200 miles (322 km), London to Edinburgh: 400 miles (644 km), London to Birmingham: 120 miles (193 km). UK motorways display distances in miles only.
The UK retained miles for road distances when adopting the metric system. This preserves traditional measurements and avoids costly replacement of millions of road signs. The government confirmed in 2022 that miles will continue to be used.
This calculator uses the precise conversion factor (1 mile = 1.609344 km) and provides results accurate to 2 decimal places, which is more than sufficient for all practical distance measurements.
Yes! The conversion factor is the same for both distance and speed. 100 km = 62.14 miles, and 100 km/h = 62.14 mph. This is useful when driving in Europe with UK car speedometers.
Expert Reviewed — This calculator is reviewed by our team of financial experts and updated regularly with the latest UK tax rates and regulations. Last verified: January 2026.
Last updated: January 2026 | Verified with latest UK rates
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