Bigha (Bangladesh / West Bengal) to Bigha (Uttar Pradesh / Bihar, Pucca): the quick answer
To convert bigha (Bangladesh / West Bengal) to bigha (Uttar Pradesh / Bihar, pucca), multiply the value by 0.528926. To go the other way, multiply bigha (Uttar Pradesh / Bihar, pucca) by 1.89063 to get bigha (Bangladesh / West Bengal).
↔ Convert bigha (Uttar Pradesh / Bihar, pucca) to bigha (Bangladesh / West Bengal) instead