The calculated distance (air line) between Eslāmshahr and Varāmīn is approximately 28 miles respectively 45 kilometers.
By car or train, the actual journey to Varāmīn is certainly longer, as only the direct route (as the crow flies) between Eslāmshahr and Varāmīn has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles