Hectometer to Kilometer Converter
Convert Hectometer (hm) to Kilometer (km) instantly. 1 hm = 0.1 km.
Length Converter
31 units available
1 hm = 0.1 km
Formula:
km = hm × 0.1With your value: 1 hm = 0.1 km
How big is that?
Everyday references on a logarithmic scale, all expressed in hectometer so you can sanity-check the result.
Other Hectometer to Kilometer conversions
Hectometer to Kilometer Conversion Table
| Hectometer (hm) | Kilometer (km) |
|---|---|
| 0.5 | 0.05 |
| 1 | 0.1 |
| 2 | 0.2 |
| 5 | 0.5 |
| 10 | 1 |
| 15 | 1.5 |
| 20 | 2 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 250 | 25 |
| 500 | 50 |
| 1000 | 100 |
Kilometer to Hectometer Conversion Table
| Kilometer (km) | Hectometer (hm) |
|---|---|
| 0.5 | 5 |
| 1 | 10 |
| 2 | 20 |
| 5 | 50 |
| 10 | 100 |
| 15 | 150 |
| 20 | 200 |
| 25 | 250 |
| 50 | 500 |
| 100 | 1,000 |
| 250 | 2,500 |
| 500 | 5,000 |
| 1000 | 10,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Hectometer (hm)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Kilometer (km)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Hectometer to Kilometer
To convert from Hectometer (hm) to Kilometer (km), multiply the value by 0.1.
Formula: km = hm × 0.1
Reverse: hm = km × 10
Step-by-Step Example
- Start with your value in Hectometer. For example: 5 hm
- Multiply by the conversion factor: 5 x 0.1
- The result is: 0.5 km
About Hectometer
The hectometer (hm) is a unit of distance and length. One hectometer equals 100 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: length calculations, engineering and science, education.
About Kilometer
The kilometer equals 1,000 meters and is the standard unit for measuring distances between geographical locations in most countries.
Fun Fact: The circumference of Earth is approximately 40,075 km.
Common uses: road distances, geography, running.
Frequently Asked Questions
How many Kilometer are in 1 Hectometer?
There are exactly 0.1 Kilometer in 1 Hectometer. This means the conversion factor from Hectometer to Kilometer is 0.1.
What is the formula to convert Hectometer to Kilometer?
The formula to convert Hectometer to Kilometer is: km = hm × 0.1. For example, to convert 10 Hectometer to Kilometer, you would multiply 10 by 0.1.
What is a Hectometer?
The hectometer (hm) is a unit of distance and length. One hectometer equals 100 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Kilometer?
The kilometer equals 1,000 meters and is the standard unit for measuring distances between geographical locations in most countries.
What are the common uses of Hectometer?
The Hectometer is commonly used in length calculations, engineering and science, education.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Hectometer to Kilometer converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/hectometer-to-kilometer