The calculated distance (air line) between Le Mans and Chambray-lès-Tours is approximately 52 miles respectively 83 kilometers.
By car or train, the actual journey to Chambray-lès-Tours is certainly longer, as only the direct route (as the crow flies) between Le Mans and Chambray-lès-Tours has been calculated here.
Air line (approximately)
83 kilometers
45 nautical miles