Convert Arpent (French) to Square Centimeter
Convert arpents to square centimeters instantly. 1 arpent (french) = 4.221e+7 square centimeter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Centimeter 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 Centimeter
A square centimeter is a metric unit of area equal to 10⁻⁴ m² (1 cm × 1 cm). It is widely used in everyday measurement, lab work, and small-area applications.
Derived by squaring the centimeter (1/100 of a meter). The centi- prefix comes from the Latin 'centum' (hundred).
Square centimeters express the cross-sectional area of pipes and cables, the surface area of small everyday objects, biological tissue samples, and many engineering quantities. The SI unit for medical/pharmaceutical dose-per-area is often expressed in cm².
Centimeter has been part of the metric system since 1795.
Arpent (French) to Square Centimeter conversion formula
The relationship between arpents and square centimeters:
To convert arpents to square centimeters, multiply the value in arpents by 4.221e+7. To reverse, multiply square centimeters by 2.369107e-8.
How to use this converter
Type a value into the calculator. The result in square centimeters 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 Centimeter to Arpent (French) converter for the reverse direction.
Step-by-step: convert arpents to square centimeters
- Write down the value in arpents (arpent).
- Multiply that value by the factor 4.221e+7.
- The product is the equivalent value in square centimeters (cm²).
- To reverse, multiply the square centimeter value by 2.369107e-8.
Worked examples
Example 1 — Convert 1 arpent to cm²:
1 × 4.221e+7 = 4.221e+7 cm²
Example 2 — Convert 100 arpent to cm²:
100 × 4.221e+7 = 4.221e+9 cm²
Real-world example — Geographic to fiber-optic scale
One arpent (french) equals one billion square centimeters. This conversion appears in fiber-optic specifications, where total link length is given in arpents but signal attenuation depends on micro-scale variations along the fiber.
1 arpent × 4.221e+7 = 4.221e+7 cm²
Real-world example — Long-haul to feature-scale
One arpent (french) equals one billion square centimeters — useful in fiber-optic engineering, where total cable length is given in the larger unit but feature-level attenuation depends on micro-scale variations.
1 arpent × 4.221e+7 = 4.221e+7 cm²
Arpent (French) to Square Centimeter conversion table
Standard reference values for converting arpents to square centimeters:
| Arpent (French) [arpent] | Square Centimeter [cm²] |
|---|---|
| 0.01 | 422100 |
| 0.1 | 4221000 |
| 1 | 4.221e+7 |
| 2 | 8.442e+7 |
| 3 | 1.2663e+8 |
| 4 | 1.6884e+8 |
| 5 | 2.1105e+8 |
| 10 | 4.221e+8 |
| 20 | 8.442e+8 |
| 30 | 1.2663e+9 |
| 40 | 1.6884e+9 |
| 50 | 2.1105e+9 |
| 100 | 4.221e+9 |
| 500 | 2.1105e+10 |
| 1000 | 4.221e+10 |
Frequently asked questions
How many square centimeters is 1 arpent (french)?
How do I convert arpents to square centimeters?
How do I convert square centimeters back to arpents?
How many square centimeters 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 = 4.221e+7 cm²) 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.