The calculated distance (air line) between Chartres-de-Bretagne and Liffré is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Liffré is certainly longer, as only the direct route (as the crow flies) between Chartres-de-Bretagne and Liffré has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles