Convert Roods to Tsubo
Convert Roods (ro) to Tsubo (坪) instantly and accurately.
Conversion Formula
坪 = ro × 306.0435169
About Roods
A rood (ro) is a traditional English unit of land area equal to one quarter of an acre, or 40 square rods, approximately 1,011.71 m². Originating in medieval England, the rood was used alongside the acre and the perch for describing land ownership. The name shares its root with 'rod,' the linear unit used to measure it. While largely obsolete in modern use, roods still appear in old English legal documents, historical land surveys, and certain rural property records in England and Wales.
About Tsubo
A tsubo (坪) is the traditional Japanese unit of floor area, equal to 400/121 m² (approximately 3.306 m²) - defined as the footprint of two tatami mats placed side by side. It has been the standard for measuring rooms and apartments in Japan for centuries and remains widely used in real estate and architecture today. Apartment sizes in Japan are routinely quoted in tsubo alongside square meters. One tsubo equals approximately 35.58 square feet or 3.95 square yards.
Quick Reference Table
| Roods (ro) | Tsubo (坪) |
|---|---|
| 1 ro | 306.044 坪 |
| 2 ro | 612.087 坪 |
| 5 ro | 1530.22 坪 |
| 10 ro | 3060.44 坪 |
| 25 ro | 7651.09 坪 |
| 50 ro | 15302.2 坪 |
| 100 ro | 30604.4 坪 |