We calculated distance with our calculator and with the help of International map agencies and distance between Elmers End Cromwell Road BR3 and Portobello Road is 120 km.
If you go from Elmers End Cromwell Road BR3 to Portobello Road, with normal traffic conditions and non-stop driving, you reach final destination in 1,5 hours.
Depend on car conditions and fuel quality, to travel from Elmers End Cromwell Road BR3 to Portobello Road with car transport, you need 7 gallons gallons of petrol, which will cost around 10 $ with average prices.