Convert Hoppus feet to Hoppus tons
Convert Hoppus feet (H ft) to Hoppus tons (H ton) instantly and accurately.
Conversion Formula
H ton = H ft × 0.02
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 Hoppus tons
The Hoppus ton (H ton) = 50 Hoppus feet = 50 × (Ο€/4) ft³ ≈ 1.112 m³. The '50' approximated one ton of tropical hardwood by weight (teak/mahogany at 700-900 kg/m³ × 1.112 m³ ≈ 0.9 metric ton). Standard for British colonial timber imports - teak from Burma, iroko from West Africa, meranti from SE Asia. Superseded by m³ after metrication. 1 H ton = 50 H ft ≈ 1.112 m³.
Quick Reference Table
| Hoppus feet (H ft) | Hoppus tons (H ton) |
|---|---|
| 1 H ft | 0.02 H ton |
| 2 H ft | 0.04 H ton |
| 5 H ft | 0.1 H ton |
| 10 H ft | 0.2 H ton |
| 25 H ft | 0.5 H ton |
| 50 H ft | 1 H ton |
| 100 H ft | 2 H ton |