one Hoppus foot (h ft) = 0.00771660330303031 Petrograd standards (Ptg.std)
one Hoppus foot (h ft) = 0.00707355302777779 Gothenburg standards (Got.std)
one Hoppus foot (h ft) = 0.01273239545 Gefle standards (Gef.std)
one Hoppus foot (h ft) = 0.0123465652848485 Christiana standards (Chr.std)
one Hoppus foot (h ft) = 0.0104470937025641 Drammen standards (Drm.std)
one Hoppus foot (h ft) = 0.00471570201851852 London standards  (Lon.std)
one Hoppus foot (h ft) = 0.00555595437818182 Quebec standards (Que.std)
one Hoppus foot (h ft) = 0.00643050275252525 Drontheim standards (sawn deals)
one Hoppus foot (h ft) = 0.00707355302777779 Drontheim standards (square timber)
one Hoppus foot (h ft) = 0.00884194128472222 Drontheim standards (round timber)
one Hoppus foot (h ft) = 0.00707355302777779 Wyburg standard (sawn deals)
one Hoppus foot (h ft) = 0.00777946768839103 Wyburg standards  (square timber)
one Hoppus foot (h ft) = 0.00979415034615385 Wyburg standards (round timber)
one Hoppus foot (h ft) = 0.0159154943125 Riga last (Rl)