Hectometer to Arpent Converter
Convert hectometers to arpents with our free online length converter.
Quick Answer
1 Hectometer = 1.71025 arpents
Formula: Hectometer Γ conversion factor = Arpent
Use the calculator below for instant, accurate conversions.
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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.
Hectometer to Arpent Calculator
How to Use the Hectometer to Arpent Calculator:
- Enter the value you want to convert in the 'From' field (Hectometer).
- The converted value in Arpent will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Length category.
- Click the swap button (β) to reverse the conversion direction.
How to Convert Hectometer to Arpent: Step-by-Step Guide
Converting Hectometer to Arpent involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Hectometer = 1.71025 arpentsExample Calculation:
Convert 10 hectometers: 10 Γ 1.71025 = 17.1025 arpents
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
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View all Length conversions βWhat is a Hectometer and a Arpent?
The hectometer (symbol: hm) is a unit of length in the metric system. It is defined as exactly one hundred (100) meters, which is the base unit of length in the International System of Units (SI). Therefore, 1 kilometer equals 10 hectometers.
The Arpent is a historical French unit used primarily for measuring land area, but also sometimes used as a unit of length. As a unit of length, the arpent typically referred to the side length of a square arpent of land.
Its precise length varied significantly by region and time period in France and its colonies. A commonly cited value, particularly associated with the arpent de Paris, is based on 180 French feet (pieds du Roi), which equates to approximately:
- 58.47 meters (m)
- 191.8 feet (ft)
Other variations existed, such as the arpent commun (based on 200 French feet, ~64.97 m) and the arpent d'ordonnance (based on 220 French feet, ~71.47 m).
Note: The Hectometer is part of the metric (SI) system, primarily used globally in science and trade. The Arpent belongs to the imperial/US customary system.
History of the Hectometer and Arpent
The hectometer originates from the French Revolution era, alongside the development of the metric system in the 1790s. The system aimed for rational, decimal-based units derived from the meter. The prefix "hecto-" (derived from Greek "hekaton" meaning hundred) signifies a factor of one hundred (10Β²). While the meter and kilometer became the more common standards for many applications, the hectometer was defined as part of the systematic decimal structure of the metric system.
The term "arpent" likely derives from the Gaulish arepennis, meaning "end of a field," suggesting its origins relate to agricultural land measurement, possibly representing the amount of land that could be plowed in a day. It became a fundamental unit for land surveying in France during the medieval period and remained in use until the adoption of the metric system following the French Revolution.
- Regional Variations: Before standardization efforts, the length (and thus area) of the arpent varied considerably across different regions of France. Key variations included:
- Arpent de Paris: Based on a perche (rod) of 18 pieds du Roi (French feet), with the linear arpent (side of the square) being 10 perches, totaling 180 pieds (~58.47 m). The area was 32,400 square pieds.
- Arpent Commun: Based on a perche of 20 pieds, linear arpent of 200 pieds (~64.97 m). Area: 40,000 square pieds.
- Arpent d'Ordonnance (or Arpent des Eaux et ForΓͺts): Based on a perche of 22 pieds, linear arpent of 220 pieds (~71.47 m). Area: 48,400 square pieds. Used primarily for royal forests.
- Colonial Usage: The arpent was exported to French colonies, notably:
- New France (Quebec, Canada): The arpent de Paris became the standard for land grants along the St. Lawrence River, shaping the characteristic long, narrow farm plots (rangs).
- Louisiana (USA): The French arpent (usually the arpent de Paris) was used for land measurement before and sometimes after the Louisiana Purchase. Its legacy persists in land titles and some place names.
- Metrication: The metric system officially replaced the arpent and other traditional units in France in the late 18th and early 19th centuries, though its use lingered in practice and historical records.
Common Uses and Applications: hectometers vs arpents
Explore the typical applications for both Hectometer (metric) and Arpent (imperial/US) to understand their common contexts.
Common Uses for hectometers
The hectometer is not frequently used in everyday language or general measurements compared to meters or kilometers. However, it finds niche applications in specific fields:
- Agriculture and Forestry: Sometimes used for measuring land parcel dimensions or distances in large fields or forests where measurements are typically in the hundreds of meters.
- Surveying: Can be used in land surveying, particularly in contexts where metric units are standard but kilometers are too large and meters too small for convenient expression of certain distances.
- Meteorology: While not a length unit, the related unit hectopascal (hPa), using the same prefix, is the standard international unit for atmospheric pressure.
- Radio Astronomy: Certain radio wavelengths might be expressed in hectometers.
- Education: Useful in teaching the metric system to illustrate the powers of 10 and the relationship between different metric length units (1 km = 10 hm = 100 dam = 1000 m).
When to Use arpents
The Arpent (both linear and area) is now largely obsolete for practical measurement but remains historically significant:
- Historical Land Surveys: Essential for interpreting old maps, deeds, and land grants in France, Quebec, Louisiana, and other areas formerly under French control (e.g., parts of the US Midwest like Missouri, Illinois, Indiana).
- Legal Context: Land descriptions in some regions may still reference original measurements in arpents, requiring conversion for modern understanding.
- Historical Research: Understanding the arpent is crucial for historians studying agriculture, settlement patterns, and land tenure systems in French history and its colonial contexts.
- Unit of Area: While this page focuses on the length, the arpent is more commonly known and encountered as a unit of area (the square arpent).
Additional Unit Information
About Hectometer (hm)
How many hectometers are in a kilometer?
There are exactly 10 hectometers in 1 kilometer.
How many meters are in a hectometer?
There are exactly 100 meters in 1 hectometer.
How many decameters are in a hectometer?
There are exactly 10 decameters (dam) in 1 hectometer.
How do you convert hectometers to miles?
To convert hectometers to miles, multiply the number of hectometers by approximately 0.0621371. For example, 5 hm is about 5 * 0.0621371 = 0.3106855 miles.
Is the hectometer commonly used?
No, the hectometer is one of the less commonly used metric units in everyday practice. Meters and kilometers are generally preferred for most practical distance measurements.
Why isn't the hectometer used more often?
For many everyday distances (room sizes, building heights), meters provide a convenient scale. For longer distances (travel, road signs), kilometers are more practical. The hectometer often represents an intermediate scale (100 meters, roughly the length of a football field) that doesn't align as frequently with common measurement needs as meters or kilometers do.
About Arpent (arpent)
Is the Arpent a unit of length or area?
The Arpent is primarily known as a unit of area, representing a specific parcel of land. However, a linear arpent also exists, defined as the side length of a square whose area is one arpent. This page focuses on the linear arpent. The relationship is direct: Area Arpent = (Linear Arpent)Β². Because the linear arpent varied, the area also varied.
Where is the Arpent still relevant?
The Arpent is not used for everyday measurements today. Its relevance is almost entirely historical and legal:
- Quebec (Canada): Crucial for understanding historical land division and property lines, especially the seigneurial system.
- Louisiana (USA): Important for interpreting land titles dating back to the French colonial period.
- France: Relevant for historical studies and understanding old documents.
- Other former French territories: May appear in historical records (e.g., Mauritius, parts of the US Midwest).
How long is a linear Arpent?
There is no single value, as it varied regionally. Common historical values include:
- Arpent de Paris: ~180 French feet β 58.47 meters β 191.8 feet (Most common in Quebec & Louisiana)
- Arpent Commun: ~200 French feet β 64.97 meters β 213.2 feet
- Arpent d'Ordonnance: ~220 French feet β 71.47 meters β 234.5 feet (Note: The French foot, pied du Roi, was slightly longer than the English foot, approx. 32.48 cm or 12.79 inches).
How does the linear Arpent compare to a Meter or Foot?
- The most common linear arpent (~58.47 m) is significantly longer than a meter. (1 Arpent β 58.47 m)
- It is also much longer than a foot. (1 Arpent β 191.8 ft)
Is the Arpent an SI unit?
No, the Arpent is not an SI unit. It is a traditional unit from the French system of measurements. The SI base unit for length is the meter (m), and the SI unit for area is the square meter (mΒ²).
Conversion Table: Hectometer to Arpent
| Hectometer (hm) | Arpent (arpent) |
|---|---|
| 0.5 | 0.855 |
| 1 | 1.71 |
| 1.5 | 2.565 |
| 2 | 3.421 |
| 5 | 8.551 |
| 10 | 17.103 |
| 25 | 42.756 |
| 50 | 85.513 |
| 100 | 171.025 |
| 250 | 427.562 |
| 500 | 855.125 |
| 1,000 | 1,710.25 |
People Also Ask
How do I convert Hectometer to Arpent?
To convert Hectometer to Arpent, enter the value in Hectometer in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our length converter page to convert between other units in this category.
Learn more βWhat is the conversion factor from Hectometer to Arpent?
The conversion factor depends on the specific relationship between Hectometer and Arpent. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.
Can I convert Arpent back to Hectometer?
Yes! You can easily convert Arpent back to Hectometer by using the swap button (β) in the calculator above, or by visiting our Arpent to Hectometer converter page. You can also explore other length conversions on our category page.
Learn more βWhat are common uses for Hectometer and Arpent?
Hectometer and Arpent are both standard units used in length measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our length converter for more conversion options.
For more length conversion questions, visit our FAQ page or explore our conversion guides.
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All Length Conversions
Other Length Units and Conversions
Explore other length units and their conversion options:
- Meter (m) β’ Hectometer to Meter
- Kilometer (km) β’ Hectometer to Kilometer
- Decimeter (dm) β’ Hectometer to Decimeter
- Centimeter (cm) β’ Hectometer to Centimeter
- Millimeter (mm) β’ Hectometer to Millimeter
- Inch (in) β’ Hectometer to Inch
- Foot (ft) β’ Hectometer to Foot
- Yard (yd) β’ Hectometer to Yard
- Mile (mi) β’ Hectometer to Mile
- Nautical Mile (NM) β’ Hectometer to Nautical Mile
Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
National Institute of Standards and Technology β Official US standards for length measurements
Bureau International des Poids et Mesures β International System of Units official documentation
Last verified: February 19, 2026