UK versus US gallons
A UK imperial gallon is 4.54609 litres; a US gallon is smaller. If your vehicle displays UK miles per gallon, using a US conversion will give the wrong fuel estimate.
The calculation
Round-trip miles × commute days × weeks ÷ UK miles per gallon × 4.54609 × cost per litre = approximate fuel cost.
What's excluded
Driving style, congestion, temperature and journey length all affect actual consumption. Fuel is just one part of car ownership costs. Servicing, parking and depreciation are separate.
Try different scenarios
Change the days you drive each week or the pump price in the commute fuel calculator to compare approximate outcomes.
Open the matching calculator →
Illustrative examples only. Use your own tariffs, measurements and circumstances when making decisions.