Kilometer Converter
Unit ConversionConvert kilometers to millimeters, centimeters, meters, inches, feet, yards, and miles. Type any value into any field and every other unit updates instantly.
Kilometer
Metric
Imperial / US
Nautical
1 Kilometer = 1,000 Meters ⟷ 1 Meter = 0.001 Kilometers
1 Kilometer = 100,000 Centimeters ⟷ 1 Centimeter = 0.00001 Kilometers
1 Kilometer = 1,000,000 Millimeters ⟷ 1 Millimeter = 0.000001 Kilometers
1 Kilometer = 0.621371 Miles ⟷ 1 Mile = 1.609344 Kilometers
1 Kilometer = 1,093.613298 Yards ⟷ 1 Yard = 0.0009144 Kilometers
1 Kilometer = 3,280.839895 Feet ⟷ 1 Foot = 0.0003048 Kilometers
1 Kilometer = 39,370.07874 Inches ⟷ 1 Inch = 0.0000254 Kilometers
1 Kilometer = 0.539957 Nautical Miles ⟷ 1 Nautical Mile = 1.852 Kilometers
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SponsoredThis kilometer converter shows one length in every common unit at the same time. Type a value into the kilometers box, or into any other box, and all the others update as you type: meters, centimeters, millimeters, miles, yards, feet, inches and nautical miles.
The kilometer (km) is 1,000 meters, the standard unit for road distances, maps, running races and travel in most of the world. A mile is exactly 1.609344 km, so 1 km is about 0.6214 miles, a little over six tenths of a mile.
Every factor here is exact, taken from the official definitions of the meter, the international foot and the international nautical mile, and the converter shows up to six decimal places. Lengths cannot be negative, so a negative entry clears the other boxes instead of showing a meaningless result.
Kilometer Conversion Chart
Common distances in kilometers, converted to miles, meters, feet and nautical miles. Values are rounded to four decimal places.
| Kilometers | Miles | Meters | Feet | Nautical Miles |
|---|---|---|---|---|
| 0.5 km | 0.3107 mi | 500 m | 1,640.4199 ft | 0.27 nmi |
| 1 km | 0.6214 mi | 1,000 m | 3,280.8399 ft | 0.54 nmi |
| 2 km | 1.2427 mi | 2,000 m | 6,561.6798 ft | 1.0799 nmi |
| 3 km | 1.8641 mi | 3,000 m | 9,842.5197 ft | 1.6199 nmi |
| 5 km | 3.1069 mi | 5,000 m | 16,404.1995 ft | 2.6998 nmi |
| 10 km | 6.2137 mi | 10,000 m | 32,808.399 ft | 5.3996 nmi |
| 15 km | 9.3206 mi | 15,000 m | 49,212.5984 ft | 8.0994 nmi |
| 20 km | 12.4274 mi | 20,000 m | 65,616.7979 ft | 10.7991 nmi |
| 25 km | 15.5343 mi | 25,000 m | 82,020.9974 ft | 13.4989 nmi |
| 50 km | 31.0686 mi | 50,000 m | 164,041.9948 ft | 26.9978 nmi |
| 100 km | 62.1371 mi | 100,000 m | 328,083.9895 ft | 53.9957 nmi |
How Many Kilometers in a Mile
There are exactly 1.609344 kilometers in a mile. The mile is 5,280 feet and the international foot is exactly 0.3048 meters, so a mile is 5,280 × 0.3048 = 1,609.344 meters, as listed in NIST Handbook 44, Appendix C. Going the other way, 1 kilometer is about 0.621371 miles.
For a quick estimate, multiply kilometers by 5 and divide by 8. That gives 0.625 miles per kilometer, less than 1% above the exact figure, close enough for reading a road sign. For speeds posted in km/h, the KM/H to MPH Converter does the same job for speed.
How Many Meters in a Kilometer
A kilometer is exactly 1,000 meters. The prefix kilo means one thousand, so moving from kilometers to meters only shifts the decimal point three places: 2.5 km is 2,500 m, and 750 m is 0.75 km.
Kilometers and Nautical Miles
A nautical mile is exactly 1.852 kilometers, set by international agreement in 1929 and tied to one minute of latitude, according to NOAA. That makes 1 km about 0.539957 nautical miles. Ships and aircraft use nautical miles, so the extra box above is there for sea and air distances. The Nautical Mile Calculator also works out distance from boat speed and time, and the Light-Years to Kilometers Converter covers distances far beyond Earth.
Kilometers to Other Units
Single conversions from kilometers to one other unit, one page per pair.
- Kilometers to Meters Converter: 1 kilometer equals 1,000 meters
- Kilometers to Miles Converter: 1 mile equals exactly 1.609344 kilometers
- Kilometers to Feet Converter: 1 kilometer equals about 3,280.839895 feet
- Centimeters to Kilometers Converter: 1 kilometer equals 100,000 centimeters
- Millimeters to Kilometers Converter: 1 kilometer equals 1,000,000 millimeters
Other Length Converters
Each converter below shows one length in every common unit at once, starting from a different unit.
- Centimeter Converter: centimeters to inches, feet and millimeters
- Millimeter Converter: millimeters to inches and micrometers, with a fraction chart
- Mile Converter: miles to kilometers, feet, yards and nautical miles
- Feet Converter: feet to inches, meters and centimeters
- Inch Converter: inches to centimeters and millimeters, with an inch fraction chart
- Meter Converter: meters to feet, inches and centimeters, with metric prefixes
- Yard Converter: yards to feet, meters and miles
- Distance Converter: travel and race distances in miles and kilometers
- Height Converter: heights in feet and inches, centimeters and meters
- Length Converter: pick any common length unit and convert it
Frequently Asked Questions
Is a kilometer longer than a mile?
No. A mile is longer: 1 mile is 1.609344 km, so a kilometer is only about 62% of a mile. A 10 km race is about 6.21 miles.
How do I convert kilometers to feet?
Multiply kilometers by about 3,280.8399. One kilometer is 1,000 meters and one foot is exactly 0.3048 meters, so 1 km is 1,000 / 0.3048 feet.
Is it kilometer or kilometre?
Both are correct. Kilometer is the US spelling and kilometre is the British and international spelling. The symbol is km either way, and the length is the same.
Can I type into a box other than kilometers?
Yes. Every box is both an input and an output. Type miles, feet or any other unit and the kilometers box and all the others update.
How precise are the results?
The converter uses the exact definitions of each unit and shows up to six decimal places. Round the result to whatever precision your task needs.
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