Convert Timber fathoms to Hoppus feet
Convert Timber fathoms (tim. fath.) to Hoppus feet (H ft) instantly and accurately.
Conversion Formula
H ft = tim. fath. × 275.0197417
About Timber fathoms
The timber fathom is an archaic Scottish/N.English unit = 6 ft × 6 ft × 6 ft = 216 ft³ = 6.1164 m³ (not to be confused with the nautical fathom of water depth = 6 ft length). Used in Scottish estate forestry and Lanarkshire mine pit-prop purchasing; surveyors stacked poles in a 6×6×6 ft crib to measure delivery. Superseded by ft³ and load by late 19th century. 1 timber fathom = 216 ft³ = 6.1164 m³ ≈ 2,592 bf.
About Hoppus feet
The Hoppus foot (H ft) is a British-Commonwealth round-log unit devised by Edward Hoppus (1736): V(H ft) = (girth/4 in)² × length/ft, yielding Ο€/4 of the true cylindrical volume ≈ 78.54% - the usable square-sawn fraction. Replaced by m³ in UK trade (1963) but still used in Sri Lanka, Malaysia, Myanmar, and Bangladesh. 1 H ft = Ο€/4 ft³ ≈ 0.02224 m³.
Quick Reference Table
| Timber fathoms (tim. fath.) | Hoppus feet (H ft) |
|---|---|
| 1 tim. fath. | 275.02 H ft |
| 2 tim. fath. | 550.039 H ft |
| 5 tim. fath. | 1375.1 H ft |
| 10 tim. fath. | 2750.2 H ft |
| 25 tim. fath. | 6875.49 H ft |
| 50 tim. fath. | 13751 H ft |
| 100 tim. fath. | 27502 H ft |