The calculated distance (air line) between Sharjah and Umm Al Quwain City is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Umm Al Quwain City is certainly longer, as only the direct route (as the crow flies) between Sharjah and Umm Al Quwain City has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles