Skip to content
UnitCheck

Browse all tools

Kilometers to Meters Converter

1 kilometer is exactly 1,000 meters. To convert kilometers to meters, multiply by 1,000.

Sources: BIPM SI Brochure Updated

Result

1 km = 1,000 m

How to convert kilometers to meters

meters = kilometers × 1,000

1 kilometer is 1,000 meters (SI prefix kilo, 10³). The meter is the SI base unit of length.

The factor is exact in both directions: 1 km = 1,000 m and 1 m = 0.001 km. Nothing is rounded until you choose how many decimals to show.

Worked example: 2.5 km

  1. Start with the value in kilometers: 2.5 km.
  2. Multiply by 1,000, because 1 kilometer = 1,000 meters: 2.5 × 1,000 = 2,500 m.

Kilometers to meters chart

Kilometers from 1 to 100 converted to meters with the exact factor, shown to five significant digits.

Kilometers to meters, part 1 of 4
kmm
11,000
22,000
33,000
44,000
55,000
66,000
77,000
88,000
99,000
1010,000
1111,000
1212,000
1313,000
1414,000
1515,000
1616,000
1717,000
1818,000
1919,000
2020,000
2121,000
2222,000
2323,000
2424,000
2525,000
Kilometers to meters, part 2 of 4
kmm
2626,000
2727,000
2828,000
2929,000
3030,000
3131,000
3232,000
3333,000
3434,000
3535,000
3636,000
3737,000
3838,000
3939,000
4040,000
4141,000
4242,000
4343,000
4444,000
4545,000
4646,000
4747,000
4848,000
4949,000
5050,000
Kilometers to meters, part 3 of 4
kmm
5151,000
5252,000
5353,000
5454,000
5555,000
5656,000
5757,000
5858,000
5959,000
6060,000
6161,000
6262,000
6363,000
6464,000
6565,000
6666,000
6767,000
6868,000
6969,000
7070,000
7171,000
7272,000
7373,000
7474,000
7575,000
Kilometers to meters, part 4 of 4
kmm
7676,000
7777,000
7878,000
7979,000
8080,000
8181,000
8282,000
8383,000
8484,000
8585,000
8686,000
8787,000
8888,000
8989,000
9090,000
9191,000
9292,000
9393,000
9494,000
9595,000
9696,000
9797,000
9898,000
9999,000
100100,000

meters = kilometers × 1,000. Factors: BIPM SI Brochure. unitcheck.net/length/kilometers-to-meters/

Common values

KilometersMetersWhat it is
0.4 km400 mone lap of a 400 m running track
1 km1,000 m
5 km5,000 m
10 km10,000 m
42.195 km42,195 mmarathon

Going the other way? Use the Meters to Kilometers converter.

Frequently asked questions

How many meters are in 1 kilometer?

1 kilometer is exactly 1,000 meters. 1 kilometer is 1,000 meters (SI prefix kilo, 10³).

How do I convert kilometers to meters?

Multiply by 1,000: meters = kilometers × 1,000. For example, 2.5 km = 2,500 m.

How many kilometers are in 1 meter?

1 meter is exactly 0.001 kilometers. To go the other way, use the meters to kilometers converter.

Is the km to m conversion exact?

Yes. 1 kilometer is 1,000 meters (SI prefix kilo, 10³). The factor 1,000 follows from the definitions, so the only rounding is in the number of decimals you display.

Sources