Petrol (E10) prices in Harrow averaged 146.9p per litre in March 2026, up 9.8p from the previous period. The highest recorded price was 159.9p in March 2026.

Prices have been trending upward in Harrow recently. Drivers may want to shop around and compare prices between stations to find the best deal.

Over this period, Petrol (E10) prices in Harrow ranged from 132.0p to 159.9p per litre — a spread of 27.9p. This significant variation means it pays to compare prices between stations.