The calculated distance (air line) between Saint-Lô and Paris 20 Ménilmontant is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to Paris 20 Ménilmontant is certainly longer, as only the direct route (as the crow flies) between Saint-Lô and Paris 20 Ménilmontant has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles