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Convert Arpent to Square Rod (arpent to rod²) instantly with accurate, readable results.
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Arpent (arpent carré) - historical French/Canadian land area
Arpent is a traditional land-area unit from French measure, with region-dependent definitions; in Québec and Louisiana it commonly refers to the “square arpent.” Used historically in cadastral records, land grants, and property descriptions, and still encountered in legal and surveying contexts.
- Names/aliases: arpent, arpent carré (square arpent); related linear unit: arpent (length)
- System: Historical French/Canadian (and Louisiana) customary, non-SI
- Québec (modern metric): 1 arpent (length) ≈ 58.47 m; 1 square arpent ≈ 3,418.9 m² ≈ 0.34189 ha ≈ 0.845 acres
- Louisiana usage: “superficial arpent” for area; commonly treated ≈ 0.846 acres (≈ 3,424 m²), varies by historical source
- Notes: Values differed by locale and era (Paris vs. provincial measures). Always verify the jurisdiction’s legal definition for archival deeds and surveys.
- Typical examples: long-lot riverfront concessions described in arpents (e.g., frontage in linear arpents; parcel area in square arpents)
Square rod (sq rd; also perch, pole, lug) - traditional land area
Square rod is a historical Imperial/US customary unit of area equal to a square one rod on a side. Used in older land records and surveying alongside roods and acres.
- Symbols: sq rd, rd²; also “square perch”
- System: Imperial/US customary (historic)
- Exact relations: 1 sq rd = (16.5 ft)² = 272.25 ft² = (5.5 yd)² = 30.25 yd² = (5.0292 m)² = 25.29285264 m² (exact)
- Other relations: 40 sq rd = 1 rood; 160 sq rd = 1 acre; 16 sq rd = 1 square chain
- Typical examples: deed descriptions such as “2 roods 13 perches”; 19th-century cadastral plans