The calculated distance (air line) between La Roque-d'Anthéron and Grenoble is approximately 103 miles respectively 166 kilometers.
By car or train, the actual journey to Grenoble is certainly longer, as only the direct route (as the crow flies) between La Roque-d'Anthéron and Grenoble has been calculated here.
Air line (approximately)
166 kilometers
89 nautical miles