Convert Kilometers to Meters
1 kilometer is 1,000 m. One kilometer is exactly 1000 meters.
One kilometer is 1000 meters. To convert kilometers to meters, multiply by 1000; to go the other way, divide by 1000 or multiply by 0.001. The factor is exact rather than rounded: it follows from NIST. One thousand meters, and about 0.621 miles.
Factor checked against the defining standard · How we check
- Kilometers × 1000
1 * 10001,000 m
1 kilometer in every length unit
| Unit | Value | Exact factor |
|---|---|---|
| inches | 39,370.07874 in | × 39,370.0787402 |
| feet | 3,280.839895 ft | × 3,280.83989501 |
| yards | 1,093.613298 yd | × 1,093.61329834 |
| miles | 0.6213711922 mi | × 0.621371192237 |
| millimeters | 1,000,000 mm | × 1,000,000 |
| decimetres | 10,000 dm | × 10,000 |
| centimeters | 100,000 cm | × 100,000 |
| meters | 1,000 m | × 1,000 |
| kilometers (as entered) | 1 km | — |
| nautical miles | 0.5399568035 nmi | × 0.539956803456 |
| micrometers | 1,000,000,000 µm | × 1,000,000,000 |
| nanometers | 1,000,000,000,000 nm | × 1,000,000,000,000 |
| thou | 39,370,078.74 thou | × 39,370,078.7402 |
Factors are entered by hand from NIST rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: kilometres to metres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert kilometers to meters? The converter and the working
- 1.Take the measurement in kilometers.
- 2.Multiply by 1000 — that is how many meters fit in one kilometer.
- 3.To go back the other way, divide by 1000, or multiply by 0.001.
Worked example: 25 kilometers to meters
- Formula
- km × 1000 = m
- Arithmetic
- 25 × 1000 = 25,000 m
- Answer
- 25 km = 25,000 m
The factor is exact, so this figure is exact too — only the display is rounded.
Kilometers to meters conversion table
| Kilometers | Meters |
|---|---|
| 1 km | 1,000 m |
| 2 km | 2,000 m |
| 3 km | 3,000 m |
| 4 km | 4,000 m |
| 5 km | 5,000 m |
| 6 km | 6,000 m |
| 7 km | 7,000 m |
| 8 km | 8,000 m |
| 9 km | 9,000 m |
| 10 km | 10,000 m |
| 12 km | 12,000 m |
| 15 km | 15,000 m |
| 20 km | 20,000 m |
| 25 km | 25,000 m |
| 50 km | 50,000 m |
| 100 km | 100,000 m |
| 200 km | 200,000 m |
| 300 km | 300,000 m |
| 500 km | 500,000 m |
| 1000 km | 1,000,000 m |
| 2000 km | 2,000,000 m |
| 5000 km | 5,000,000 m |
| 10000 km | 10,000,000 m |
What is a kilometer?
One thousand meters, and about 0.621 miles.
What is a meter?
The SI base unit, defined since 1983 by the distance light travels in 1/299,792,458 of a second.
How many meters are in a kilometer?
One kilometer is 1000 meters, exactly. Going the other way, one meter is 0.001 kilometers. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every length unit here
The whole group — 13 units with their symbols and the size of each one in meters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a kilometer.
Source: NIST — international yard and pound agreement (inch = 25.4 mm exactly)
Cite this page
- APA
- Rule Calculator. (2026). Convert Kilometers to meters. Rule Calculator. https://rulecalculators.com/convert/kilometer-to-meter
- MLA
- "Convert Kilometers to meters." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/kilometer-to-meter.
- Chicago
- Rule Calculator. "Convert Kilometers to meters." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/kilometer-to-meter.
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Questions people actually ask
- How many meters are in a kilometer?
- 1000. The SI base unit, defined since 1983 by the distance light travels in 1/299,792,458 of a second.
- How do I convert meters back to kilometers?
- Divide by 1000, or multiply by 0.001 — they are the same operation.
Other length conversions
Meters to kilometers — the same conversion the other way.