Convert Arpent (Canadian) to Acre
Convert arpents to acres instantly. 1 arpent (canadian) = 0.8448261176 acre — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Acre to Arpent (Canadian) converter for the reverse conversion.
Units explained
Arpent (Canadian)
A Canadian arpent is a historical unit of area equal to exactly 3418.89 m². Used in French-Canadian land records, especially in Quebec and Louisiana.
Standardized in French colonial Canada at 100 perches squared, the perche being the Canadian standard of 18 French pieds.
Canadian arpents appear in legal land descriptions in Quebec, where they remain officially recognized for historical seigneurial properties. Also appear in Louisiana land records from the French colonial period.
French colonial Canadian/Louisiana origin; remains in legal use in Quebec for historical properties.
Acre
An acre is an imperial unit of area equal to exactly 4046.8564224 m². It is the most widely used non-metric unit for land area, particularly in the US, UK, and India.
Originally defined in medieval England as the area one yoke of oxen could plow in a day, approximately 40 perches by 4 perches. Standardized via the 1959 International Yard and Pound Agreement.
Acres are the standard land measurement unit in the US (real estate, agriculture), the UK (rural property), and widely used in India (alongside hectares and traditional regional units). 1 acre = 4840 sq yd = 43,560 sq ft = 0.4047 hectare.
Medieval English farming origin; modern exact value standardized in 1959.
Arpent (Canadian) to Acre conversion formula
The relationship between arpents and acres:
To convert arpents to acres, multiply the value in arpents by 0.8448261176. To reverse, multiply acres by 1.183675527.
How to use this converter
Type a value into the calculator. The result in acres updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Acre to Arpent (Canadian) converter for the reverse direction.
Step-by-step: convert arpents to acres
- Write down the value in arpents (arpent).
- Multiply that value by the factor 0.8448261176.
- The product is the equivalent value in acres (ac).
- To reverse, multiply the acre value by 1.183675527.
Worked examples
Example 1 — Convert 1 arpent to ac:
1 × 0.8448261176 = 0.8448261176 ac
Example 2 — Convert 100 arpent to ac:
100 × 0.8448261176 = 84.4826117644 ac
Real-world example — Coastal cruise distances
A 10-arpent (canadian) coastal sailing route converts to a different value in acres — useful for cruise operators who switch between maritime, aviation, and road-distance units depending on the leg of the trip.
10 arpent × 0.8448261176 = 8.4482611764 ac
Real-world example — Road-sign distances across systems
A 100-arpent (canadian) road sign converts cleanly into acres — exactly the conversion drivers planning trips abroad rely on when reading road signs in a different measurement system.
100 arpent × 0.8448261176 = 84.4826117644 ac
Real-world example — Endurance race distances
A 50-arpent (canadian) cycling or running race converts to a recognizable distance in acres. Endurance athletes coming from a different measurement system use this conversion to compare training plans across regions.
50 arpent × 0.8448261176 = 42.2413058822 ac
Arpent (Canadian) to Acre conversion table
Standard reference values for converting arpents to acres:
| Arpent (Canadian) [arpent] | Acre [ac] |
|---|---|
| 0.01 | 0.0084482612 |
| 0.1 | 0.0844826118 |
| 1 | 0.8448261176 |
| 2 | 1.6896522353 |
| 3 | 2.5344783529 |
| 4 | 3.3793044706 |
| 5 | 4.2241305882 |
| 10 | 8.4482611764 |
| 20 | 16.8965223529 |
| 30 | 25.3447835293 |
| 40 | 33.7930447058 |
| 50 | 42.2413058822 |
| 100 | 84.4826117644 |
| 500 | 422.4130588221 |
| 1000 | 844.8261176443 |
Frequently asked questions
How many acres is 1 arpent (canadian)?
How do I convert arpents to acres?
How do I convert acres back to arpents?
How many acres is 100 arpents?
Popular area unit conversions
Convert Arpent (Canadian) to other area units
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Historical / Pre-metric European (5 units)
Sources & references
Conversion factor (1 arpent = 0.8448261176 ac) 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.