Bigha (Uttar Pradesh / Bihar, Pucca) to Killa (Punjab Acres): the quick answer
To convert bigha (Uttar Pradesh / Bihar, pucca) to killa (Punjab acres), multiply the value by 0.625. To go the other way, multiply killa (Punjab acres) by 1.6 to get bigha (Uttar Pradesh / Bihar, pucca).
↔ Convert killa (Punjab acres) to bigha (Uttar Pradesh / Bihar, pucca) instead