The fuel estimate is only one line of your road-trip budget
Splitting petrol fairly starts with a clear distance and consumption assumption. The rest of the trip still needs its own budget.
3 min read · Open guideChoose defaults for supported calculators. You can mix a region, units and currency.
Changing units converts supported measurements. Changing currency relabels amounts; it does not exchange money. Tax rules, tariffs and broker rates remain your inputs.
Only these preferences are saved in this browser. Calculator inputs are not saved.Plan the journey, then check the units.
Estimate fuel costs, share a fuel bill and distinguish US from Imperial miles per gallon.
Choose the tool for the specific task you are planning.
Check the units and replace example figures with relevant inputs.
Review the assumptions, supporting values and linked guide before acting.
Fuel cost is one part of a trip budget. Enter the complete itinerary distance, keep consumption units consistent and account for tolls separately.
Splitting petrol fairly starts with a clear distance and consumption assumption. The rest of the trip still needs its own budget.
3 min read · Open guideThe letters can match while the measurement differs. Know the gallon convention before comparing a listing or dashboard.
2 min read · Open guidePrices and consumption are user-entered assumptions. Driving conditions, fill levels, tolls and other trip costs affect actual spending.
How we explain methods and sources →