Convert Arpent (French) to Square Foot
Convert arpents to square feet instantly. 1 arpent (french) = 45434.4658689317 square foot — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Foot to Arpent (French) converter for the reverse conversion.
Units explained
Arpent (French)
A French arpent is a historical unit of land area used in pre-metric France, approximately 4221 m² (close to one acre).
Originated as a medieval French land unit; varied considerably by province. The 'arpent de Paris' was officially fixed at 100 perches squared, the perche being 18 pieds.
French arpents appear in pre-revolutionary French land records and in genealogical research. The unit was largely abolished after the French Revolution in favor of metric units.
Medieval French origin; abolished after the French Revolution in favor of metric.
Square Foot
A square foot is an imperial unit of area equal to exactly 0.09290304 m². It is the dominant unit for real estate area measurement in the United States and is widely used in India for residential property listings.
Derived by squaring the foot. The foot was standardized to exactly 0.3048 m via the 1959 International Yard and Pound Agreement.
Square feet are the standard unit for US real estate floor area, HVAC capacity ratings (BTU per ft²), commercial leasing, and construction. In India, square feet is the dominant unit for residential property advertisements alongside traditional regional units.
Foot dates to ancient civilizations; modern exact value standardized in 1959.
Arpent (French) to Square Foot conversion formula
The relationship between arpents and square feet:
To convert arpents to square feet, multiply the value in arpents by 45434.4658689317. To reverse, multiply square feet by 2.200972e-5.
How to use this converter
Type a value into the calculator. The result in square feet updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Foot to Arpent (French) converter for the reverse direction.
Step-by-step: convert arpents to square feet
- Write down the value in arpents (arpent).
- Multiply that value by the factor 45434.4658689317.
- The product is the equivalent value in square feet (ft²).
- To reverse, multiply the square foot value by 2.200972e-5.
Worked examples
Example 1 — Convert 1 arpent to ft²:
1 × 45434.4658689317 = 45434.4658689317 ft²
Example 2 — Convert 100 arpent to ft²:
100 × 45434.4658689317 = 4543446.5868931739 ft²
Real-world example — Geographic to architectural scale
One arpent (french) equals 100,000 square feet. Map scales use this when an architectural site plan (in the smaller unit) must be related to road-network plans (in the larger unit) on the same drawing.
1 arpent × 45434.4658689317 = 45434.4658689317 ft²
Real-world example — Geographic to architectural conversion
One arpent (french) equals 100,000 square feet. The conversion bridges geographic-scale survey work and architectural-scale building plans on the same drawing.
1 arpent × 45434.4658689317 = 45434.4658689317 ft²
Arpent (French) to Square Foot conversion table
Standard reference values for converting arpents to square feet:
| Arpent (French) [arpent] | Square Foot [ft²] |
|---|---|
| 0.01 | 454.3446586893 |
| 0.1 | 4543.4465868932 |
| 1 | 45434.4658689317 |
| 2 | 90868.9317378635 |
| 3 | 136303.3976067952 |
| 4 | 181737.8634757269 |
| 5 | 227172.3293446587 |
| 10 | 454344.6586893174 |
| 20 | 908689.3173786347 |
| 30 | 1363033.9760679521 |
| 40 | 1817378.6347572694 |
| 50 | 2271723.2934465869 |
| 100 | 4543446.5868931739 |
| 500 | 2.271723e+7 |
| 1000 | 4.543447e+7 |
Frequently asked questions
How many square feet is 1 arpent (french)?
How do I convert arpents to square feet?
How do I convert square feet back to arpents?
How many square feet is 100 arpents?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Other Regional (9 units)
Sources & references
Conversion factor (1 arpent = 45434.4658689317 ft²) 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.