Bigha (Uttar Pradesh / Bihar, Pucca) to Fanegada (Spain, Castile, Approx.): the quick answer
To convert bigha (Uttar Pradesh / Bihar, pucca) to fanegada (Spain, Castile, approx.), multiply the value by 0.391591. To go the other way, multiply fanegada (Spain, Castile, approx.) by 2.55369 to get bigha (Uttar Pradesh / Bihar, pucca).
↔ Convert fanegada (Spain, Castile, approx.) to bigha (Uttar Pradesh / Bihar, pucca) instead