Convert Decimetres to Kilometers
1 decimetre is 0.0001 km. One decimetre is exactly 0.0001 kilometers.
One decimetre is 1.0000 × 10^-4 kilometers. To convert decimetres to kilometers, multiply by 1.0000 × 10^-4; to go the other way, divide by 1.0000 × 10^-4 or multiply by 10000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST. A tenth of a metre.
Factor checked against the defining standard · How we check
- Decimetres × 1.0000 × 10^-4
1 * 0.00010 km
1 decimetre in every length unit
| Unit | Value | Exact factor |
|---|---|---|
| inches | 3.937007874 in | × 3.93700787402 |
| feet | 0.3280839895 ft | × 0.328083989501 |
| yards | 0.1093613298 yd | × 0.109361329834 |
| miles | 0.00006213711922 mi | × 0.0000621371192237 |
| millimeters | 100 mm | × 100 |
| decimetres (as entered) | 1 dm | — |
| centimeters | 10 cm | × 10 |
| meters | 0.1 m | × 0.1 |
| kilometers | 0.0001 km | × 0.0001 |
| nautical miles | 0.00005399568035 nmi | × 0.0000539956803456 |
| micrometers | 100,000 µm | × 100,000 |
| nanometers | 100,000,000 nm | × 100,000,000 |
| thou | 3,937.007874 thou | × 3,937.00787402 |
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: decimetres to kilometres 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 decimetres to kilometers? The converter and the working
- 1.Take the measurement in decimetres.
- 2.Multiply by 1.0000 × 10^-4 — that is how many kilometers fit in one decimetre.
- 3.To go back the other way, divide by 1.0000 × 10^-4, or multiply by 10000.
Worked example: 25 decimetres to kilometers
- Formula
- dm × 1.0000 × 10^-4 = km
- Arithmetic
- 25 × 1.0000 × 10^-4 = 0.0025 km
- Answer
- 25 dm = 0.0025 km
The factor is rounded for display; the figure above is computed from the full value.
Decimetres to kilometers conversion table
| Decimetres | Kilometers |
|---|---|
| 1 dm | 0.0001 km |
| 2 dm | 0.0002 km |
| 3 dm | 0.0003 km |
| 4 dm | 0.0004 km |
| 5 dm | 0.0005 km |
| 6 dm | 0.0006 km |
| 7 dm | 0.0007 km |
| 8 dm | 0.0008 km |
| 9 dm | 0.0009 km |
| 10 dm | 0.001 km |
| 12 dm | 0.0012 km |
| 15 dm | 0.0015 km |
| 20 dm | 0.002 km |
| 25 dm | 0.0025 km |
| 50 dm | 0.01 km |
| 100 dm | 0.01 km |
| 200 dm | 0.02 km |
| 300 dm | 0.03 km |
| 500 dm | 0.05 km |
| 1000 dm | 0.1 km |
| 2000 dm | 0.2 km |
| 5000 dm | 0.5 km |
| 10000 dm | 1 km |
What is a decimetre?
A tenth of a metre. Rare in speech and unavoidable in definitions: the litre is a cubic decimetre, which is where the millilitre and the cubic centimetre meet.
What is a kilometer?
One thousand meters, and about 0.621 miles.
How many kilometers are in a decimetre?
One decimetre is 1.0000 × 10^-4 kilometers. Going the other way, one kilometer is 10000 decimetres. 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 decimetre.
Source: NIST — international yard and pound agreement (inch = 25.4 mm exactly)
Cite this page
- APA
- Rule Calculator. (2026). Convert Decimetres to kilometers. Rule Calculator. https://rulecalculators.com/convert/decimeter-to-kilometer
- MLA
- "Convert Decimetres to kilometers." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/decimeter-to-kilometer.
- Chicago
- Rule Calculator. "Convert Decimetres to kilometers." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/decimeter-to-kilometer.
The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.
Questions people actually ask
- How many kilometers are in a decimetre?
- 1.0000 × 10^-4. One thousand meters, and about 0.621 miles.
- How do I convert kilometers back to decimetres?
- Divide by 1.0000 × 10^-4, or multiply by 10000 — they are the same operation.
Other length conversions
Kilometers to decimetres — the same conversion the other way.