Convert Kilometer to Dekameter
Convert kilometers to dekameters instantly. 1 kilometer = 100 dekameter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Dekameter to Kilometer converter for the reverse conversion.
Units explained
Kilometer
A kilometer is a metric unit of length equal to one thousand meters. It is the standard unit for measuring road distances, geographic distances, and other large-scale measurements in metric countries.
The kilometer was defined alongside the meter in 1795 using the standard SI prefix kilo- (from Greek chilioi, "thousand"), denoting one thousand units.
Kilometers are used worldwide (except the United States and a few others) for road signage, geographic distance, athletic events, and scientific distances at planetary scale. Speed limits in most countries are given in km/h.
Adopted 1795 in France as part of the original metric system; the kilometer became the global standard for road and geographic distance through the 19th and 20th century metric adoption.
Dekameter
A dekameter (also spelled decameter) is a metric unit of length equal to ten meters (10 m). It is one of the less commonly used SI prefix units and primarily appears in agricultural, surveying, and atmospheric contexts.
The dekameter was defined alongside the meter when France adopted the metric system in 1795, using the standard SI prefix deca- (from Greek deka, ten) to denote a multiplication by ten.
Dekameters are used in some European agricultural contexts (parcel sizes, field measurements), atmospheric science (cloud heights), and certain track and field events. Modern usage is uncommon outside specialised technical fields.
Adopted in 1795 in France; ratified through the Metre Convention of 1875; remains a recognised SI prefix unit although informally superseded by the more common meter and hectometer in everyday surveying.
Kilometer to Dekameter conversion formula
The relationship between kilometers and dekameters:
To convert kilometers to dekameters, multiply the value in kilometers by 100. To reverse, multiply dekameters by 0.01.
How to use this converter
Type a value into the calculator. The result in dekameters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Dekameter to Kilometer converter for the reverse direction.
Step-by-step: convert kilometers to dekameters
- Write down the value in kilometers (km).
- Multiply that value by the factor 100.
- The product is the equivalent value in dekameters (dam).
- To reverse, multiply the dekameter value by 0.01.
Worked examples
Example 1 — Convert 1 km to dam:
1 × 100 = 100 dam
Example 2 — Convert 100 km to dam:
100 × 100 = 10000 dam
Real-world example — Maritime exclusion zone
A 200-kilometer exclusion zone (a common maritime boundary) converts to a different value in dekameters that's useful when describing the same zone in everyday land-distance units.
200 km × 100 = 20000 dam
Real-world example — Coastal cruise distances
A 10-kilometer coastal sailing route converts to a different value in dekameters — useful for cruise operators who switch between maritime, aviation, and road-distance units depending on the leg of the trip.
10 km × 100 = 1000 dam
Real-world example — Road-sign distances across systems
A 100-kilometer road sign converts cleanly into dekameters — exactly the conversion drivers planning trips abroad rely on when reading road signs in a different measurement system.
100 km × 100 = 10000 dam
Kilometer to Dekameter conversion table
Standard reference values for converting kilometers to dekameters:
| Kilometer [km] | Dekameter [dam] |
|---|---|
| 0.01 | 1 |
| 0.1 | 10 |
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
| 4 | 400 |
| 5 | 500 |
| 10 | 1000 |
| 20 | 2000 |
| 30 | 3000 |
| 40 | 4000 |
| 50 | 5000 |
| 100 | 10000 |
| 500 | 50000 |
| 1000 | 100000 |
Frequently asked questions
How many dekameters is 1 kilometer?
How do I convert kilometers to dekameters?
How do I convert dekameters back to kilometers?
How many dekameters is 100 kilometers?
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Sources & references
Conversion factor (1 km = 100 dam) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.