Source unit
Kilometer km
Kilometer is a unit used to measure length.
One kilometer equals 1,000 meters.
Kilometer to Mile Converter
Reverse conversion: Mile to KilometerConverter
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Kilometer to Mile
Exact1 km≈0.621371 mi
How to convert kilometers to miles
Formula, method and accuracy
1 kilometer approximately equals 0.621371192237 miles.
Divide the kilometer value by exactly 1.609344. Keep the full result until the final rounding step.
mi = km ÷ 1.609344
1 km ÷ 1.609344 ≈ 0.621371192237 mi
Exact relationship and precision
mi = km × 15625 / 25146
The converter uses the exact relationship. Display rounding does not change the calculation.
- Operation
- Divide by factor
- Method
- Linear
- Accuracy
- Exact ratio
The unit relationship is exact. The visible decimal is rounded according to the current Display setting.
Conversion table
Practical and common reference values
| Kilometers (km) | Miles (mi) | Copy converted value |
|---|---|---|
| 1 | ≈ 0.6213711922 | |
| 2 | ≈ 1.242742384 | |
| 5 | ≈ 3.106855961 | |
| 10 | ≈ 6.213711922 | |
| 20 | ≈ 12.42742384 | |
| 50 | ≈ 31.06855961 | |
| 100 | ≈ 62.13711922 | |
| 250 | ≈ 155.3427981 | |
| 1000 | ≈ 621.3711922 |
About Kilometers and Miles
Kilometers are metric distance units; statute miles are customary land-distance units. One statute mile is exactly 1.609344 kilometers.
Kilometer as the source, Mile as the result
Use this direction when a route, race, odometer reading, map distance, or geographic measurement is supplied in kilometers but must be understood or reported in statute miles.
Result unit
Mile mi
Mile is a unit used to measure length.
One mile equals 1,609.344 meters.
Where kilometer-to-mile conversion is useful
This direction is useful for international road travel, route planning, running and cycling distances, vehicle information, and maps that must be compared with mile-based references.
Exact relationship, repeating mile decimal
The international mile is exactly 1,609.344 meters, so the kilometer-to-mile relationship is exact. Its exact ratio has a repeating decimal expansion, which requires finite displays to round the mile result.
Use statute miles for ordinary land distance
This page converts kilometers to statute miles. A nautical mile is a different length used in marine and aviation navigation; select it explicitly when the source or destination requires nautical distance.
How this conversion is verified
The exact international-mile definition establishes the relationship. The converter uses it for both the live result and the reference table, preserving calculation precision separately from display rounding.
Standards used for this conversion
For a quick estimate, multiply kilometers by about 0.62. Use the full converter value for route totals or specifications where the final digits matter.
Distance conversion does not convert speed automatically. A value in kilometers per hour belongs in the Speed category.
Frequently asked questions
6 answers for this conversion
- How do I convert kilometers to miles?
- Divide the kilometer value by exactly 1.609344 and round only the final mile result.
- Does this converter use statute miles or nautical miles?
- It uses statute miles, the miles normally used for land and road distance. Nautical miles are separate units.
- Is kilometer-to-mile conversion exact?
- Yes. The international mile is defined exactly from the meter, so the unit relationship is exact even when its displayed decimal is rounded.
- Why does the mile result have many decimal places?
- The exact kilometer-to-mile ratio does not terminate in decimal form. The displayed value is a finite representation of that exact ratio.
- When is kilometer-to-mile conversion useful?
- Use it for metric route distances, odometer readings, races, maps, or geographic measurements that need a statute-mile result.
- Can I use this page to convert km/h to mph?
- No. This page converts distance. Use the Speed converter for kilometers per hour and miles per hour.
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