The calculated distance (air line) between Saint-Maximin-la-Sainte-Baume and Nice is approximately 73 miles respectively 117 kilometers.
By car or train, the actual journey to Nice is certainly longer, as only the direct route (as the crow flies) between Saint-Maximin-la-Sainte-Baume and Nice has been calculated here.
Air line (approximately)
117 kilometers
63 nautical miles