Convert Cord feet to Hoppus feet
Convert Cord feet (cord ft) to Hoppus feet (H ft) instantly and accurately.
Conversion Formula
H ft = cord ft × 20.37183272
About Cord feet
A cord foot = 1/8 cord: a stack of firewood 4 ft wide × 4 ft tall × 1 ft deep = 16 ft³ = 0.45307 m³. Used in New England pulpwood purchasing and regulated by NIST Handbook 44. Actual solid wood content is only 60-80% of the nominal volume - the rest is air space between logs. 1 cord foot = 16 ft³ = 0.45307 m³ = 1/8 cord.
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
| Cord feet (cord ft) | Hoppus feet (H ft) |
|---|---|
| 1 cord ft | 20.3718 H ft |
| 2 cord ft | 40.7437 H ft |
| 5 cord ft | 101.859 H ft |
| 10 cord ft | 203.718 H ft |
| 25 cord ft | 509.296 H ft |
| 50 cord ft | 1018.59 H ft |
| 100 cord ft | 2037.18 H ft |