Fuel Math Estimator

FuelMath — Fuel Cost Calculator
Plan your trips and see how much you’ll spend on fuel before you hit the road. No complicated menus—just enter your numbers and get the result in seconds.
Instant calculation
Enter distance, fuel consumption, and price per liter or gallon. Total cost and fuel volume update as you type. No “Calculate” button—everything happens in real time.
Metric and Imperial
Switch between units in Settings: kilometers and L/100km, or miles and MPG. Choose what you’re used to.
Trip history
Save trips with custom names and see past trips with date and cost. All data stays on your device—no account required.
Simple and focused
Clean, dark interface built for quick use. No clutter, no extra features—just the calculator you need.
Free to use
Full calculator and history are free. You can optionally remove ads with a one-time purchase for an ad-free experience.
Ideal for road trippers, commuters, and anyone who wants to plan or track fuel costs. Download FuelMath and plan your next trip with confidence.