Tunnland (Sweden / Finland) to Bigha (Uttar Pradesh / Bihar, Pucca): the quick answer
To convert tunnland (Sweden / Finland) to bigha (Uttar Pradesh / Bihar, pucca), multiply the value by 1.9517. To go the other way, multiply bigha (Uttar Pradesh / Bihar, pucca) by 0.512374 to get tunnland (Sweden / Finland).
↔ Convert bigha (Uttar Pradesh / Bihar, pucca) to tunnland (Sweden / Finland) instead