Convert Hectometer to Dekameter
Convert hectometers to dekameters instantly. 1 hectometer = 10 dekameter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Dekameter to Hectometer converter for the reverse conversion.
Units explained
Hectometer
A hectometer is a metric unit of length equal to one hundred meters (100 m). It is occasionally used in sports, agricultural surveying, and some European real-estate contexts.
The hectometer was defined alongside the meter when France adopted the metric system in 1795, using the SI prefix hecto- (from Greek hekaton, hundred) to denote multiplication by 100.
Hectometers appear in some sports contexts (the 100 m sprint is technically 1 hm), in agriculture (parcel sizes in some European nations), and in atmospheric science. Most contexts now use meters or kilometers instead.
Adopted in 1795 in France; ratified through the Metre Convention of 1875; remains a defined SI prefix unit although rarely used outside specialised contexts.
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1795 in France; ratified through the Metre Convention of 1875; remains a recognised SI prefix unit although informally superseded by the more common meter and hectometer in everyday surveying.
Hectometer to Dekameter conversion formula
The relationship between hectometers and dekameters:
To convert hectometers to dekameters, multiply the value in hectometers by 10. To reverse, multiply dekameters by 0.1.
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 Hectometer converter for the reverse direction.
Step-by-step: convert hectometers to dekameters
- Write down the value in hectometers (hm).
- Multiply that value by the factor 10.
- The product is the equivalent value in dekameters (dam).
- To reverse, multiply the dekameter value by 0.1.
Worked examples
Example 1 — Convert 1 hm to dam:
1 × 10 = 10 dam
Example 2 — Convert 100 hm to dam:
100 × 10 = 1000 dam
Hectometer to Dekameter conversion table
Standard reference values for converting hectometers to dekameters:
| Hectometer [hm] | Dekameter [dam] |
|---|---|
| 0.01 | 0.1 |
| 0.1 | 1 |
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 4 | 40 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 30 | 300 |
| 40 | 400 |
| 50 | 500 |
| 100 | 1000 |
| 500 | 5000 |
| 1000 | 10000 |
Frequently asked questions
How many dekameters is 1 hectometer?
How do I convert hectometers to dekameters?
How do I convert dekameters back to hectometers?
How many dekameters is 100 hectometers?
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Sources & references
Conversion factor (1 hm = 10 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.