Convert Hoppus feet to Cord feet
Convert Hoppus feet (H ft) to Cord feet (cord ft) instantly and accurately.
Conversion Formula
cord ft = H ft × 0.04908738521
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.
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.
Quick Reference Table
| Hoppus feet (H ft) | Cord feet (cord ft) |
|---|---|
| 1 H ft | 0.0490874 cord ft |
| 2 H ft | 0.0981748 cord ft |
| 5 H ft | 0.245437 cord ft |
| 10 H ft | 0.490874 cord ft |
| 25 H ft | 1.22718 cord ft |
| 50 H ft | 2.45437 cord ft |
| 100 H ft | 4.90874 cord ft |