The calculated distance (air line) between Bayt Fūrīk and Khān Yūnis is approximately 84 miles respectively 135 kilometers.
By car or train, the actual journey to Khān Yūnis is certainly longer, as only the direct route (as the crow flies) between Bayt Fūrīk and Khān Yūnis has been calculated here.
Air line (approximately)
135 kilometers
73 nautical miles