Convert Arpent (French) to Tsubo
Convert arpents to tsubos instantly. 1 arpent (french) = 1276.8467541896 tsubo — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tsubo 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.
Tsubo
A tsubo is a Japanese unit of area equal to approximately 3.3058 m² (about 35.58 square feet). It is functionally identical to the Korean pyeong.
Defined as a 6-by-6 shaku square; the shaku is the traditional Japanese foot. Standardized as 400/121 m² in modern Japanese law.
Tsubos remain in widespread use in Japanese real estate, particularly for residential apartments and small commercial spaces. Property listings often cite both tsubo and square meters.
Traditional Japanese unit; legally retained in Japan for real estate.
Arpent (French) to Tsubo conversion formula
The relationship between arpents and tsubos:
To convert arpents to tsubos, multiply the value in arpents by 1276.8467541896. To reverse, multiply tsubos by 0.0007831793.
How to use this converter
Type a value into the calculator. The result in tsubos updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Tsubo to Arpent (French) converter for the reverse direction.
Step-by-step: convert arpents to tsubos
- Write down the value in arpents (arpent).
- Multiply that value by the factor 1276.8467541896.
- The product is the equivalent value in tsubos (tsubo).
- To reverse, multiply the tsubo value by 0.0007831793.
Worked examples
Example 1 — Convert 1 arpent to tsubo:
1 × 1276.8467541896 = 1276.8467541896 tsubo
Example 2 — Convert 100 arpent to tsubo:
100 × 1276.8467541896 = 127684.6754189606 tsubo
Real-world example — Lap pacing and route segmentation
Translating a arpent (french)-scale distance into tsubos is how runners, cyclists, and route planners convert top-line totals into the working segments they actually pace and execute.
1 arpent × 1276.8467541896 = 1276.8467541896 tsubo
Real-world example — Track athletics distances
A 1-arpent (french) running track equals one thousand tsubos. Track athletes' lap pacing converts the lap (often 400 of the smaller unit) into the fractional race distance whenever a coach reviews splits.
1 arpent × 1276.8467541896 = 1276.8467541896 tsubo
Real-world example — Geographic to human-scale conversion
One arpent (french) converts to a precise number of tsubos — the everyday arithmetic for navigation systems, race-distance calculations, and any context where bigger geographic units must be related to the smaller working units.
1 arpent × 1276.8467541896 = 1276.8467541896 tsubo
Arpent (French) to Tsubo conversion table
Standard reference values for converting arpents to tsubos:
| Arpent (French) [arpent] | Tsubo [tsubo] |
|---|---|
| 0.01 | 12.7684675419 |
| 0.1 | 127.684675419 |
| 1 | 1276.8467541896 |
| 2 | 2553.6935083792 |
| 3 | 3830.5402625688 |
| 4 | 5107.3870167584 |
| 5 | 6384.233770948 |
| 10 | 12768.4675418961 |
| 20 | 25536.9350837921 |
| 30 | 38305.4026256882 |
| 40 | 51073.8701675842 |
| 50 | 63842.3377094803 |
| 100 | 127684.6754189606 |
| 500 | 638423.377094803 |
| 1000 | 1276846.7541896061 |
Frequently asked questions
How many tsubos is 1 arpent (french)?
How do I convert arpents to tsubos?
How do I convert tsubos back to arpents?
How many tsubos is 100 arpents?
Popular area unit conversions
Convert Arpent (French) to other area units
Show all Arpent (French) conversions
Metric / SI (5 units)
Imperial / US Customary (3 units)
Other Regional (9 units)
Sources & references
Conversion factor (1 arpent = 1276.8467541896 tsubo) 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.