The calculated distance (air line) between Ribeirão Pires and Biritiba Mirim is approximately 26 miles respectively 41 kilometers.
By car or train, the actual journey to Biritiba Mirim is certainly longer, as only the direct route (as the crow flies) between Ribeirão Pires and Biritiba Mirim has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles