Bigha (Uttar Pradesh / Bihar, Pucca) to Arpent (Mauritius): the quick answer
To convert bigha (Uttar Pradesh / Bihar, pucca) to arpent (Mauritius), multiply the value by 0.599215. To go the other way, multiply arpent (Mauritius) by 1.66885 to get bigha (Uttar Pradesh / Bihar, pucca).
↔ Convert arpent (Mauritius) to bigha (Uttar Pradesh / Bihar, pucca) instead