Square Links to Bigha (Uttar Pradesh / Bihar, Pucca): the quick answer
To convert square links to bigha (Uttar Pradesh / Bihar, pucca), multiply the value by 1.6 × 10⁻⁵. To go the other way, multiply bigha (Uttar Pradesh / Bihar, pucca) by 62,500 to get square links.
↔ Convert bigha (Uttar Pradesh / Bihar, pucca) to square links instead