The calculated distance (air line) between Chartres-de-Bretagne and Janzé is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Janzé is certainly longer, as only the direct route (as the crow flies) between Chartres-de-Bretagne and Janzé has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles