The calculated distance (air line) between San Martín de Valdeiglesias and Fuencarral-El Pardo is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Fuencarral-El Pardo is certainly longer, as only the direct route (as the crow flies) between San Martín de Valdeiglesias and Fuencarral-El Pardo has been calculated here.
Air line (approximately)
58 kilometers
32 nautical miles