Gaj (Square Yards) to Bigha (Bangladesh / West Bengal): the quick answer
To convert gaj (square yards) to bigha (Bangladesh / West Bengal), multiply the value by 0.000625. To go the other way, multiply bigha (Bangladesh / West Bengal) by 1,600 to get gaj (square yards).
↔ Convert bigha (Bangladesh / West Bengal) to gaj (square yards) instead