Bigha (Uttar Pradesh / Bihar, Pucca) to Jō (Tatami Mats, Japan): the quick answer
To convert bigha (Uttar Pradesh / Bihar, pucca) to jō (tatami mats, Japan), multiply the value by 1,561.29. To go the other way, multiply jō (tatami mats, Japan) by 0.000640497 to get bigha (Uttar Pradesh / Bihar, pucca).
↔ Convert jō (tatami mats, Japan) to bigha (Uttar Pradesh / Bihar, pucca) instead