Biswa / Katha (Uttar Pradesh / Bihar) to Square Miles: the quick answer
To convert biswa / katha (Uttar Pradesh / Bihar) to square miles, multiply the value by 4.88281 × 10⁻⁵. To go the other way, multiply square miles by 20,480 to get biswa / katha (Uttar Pradesh / Bihar).
↔ Convert square miles to biswa / katha (Uttar Pradesh / Bihar) instead