How do I model a round trip?
Either double the distance or set Trips = 2 so the calculator multiplies miles, fuel, and cost accordingly.
Step-by-step walkthrough
Fuel Cost Calculator Guide
Use this companion guide beside the interactive calculator to make sure you understand the “why” behind every click. Each section includes the classroom explanation, student-friendly language, and quick practice prompts.
Before you start
Collect the data points listed below and double-check their units. Keeping an organized “givens” list is one of the fastest ways to reduce math errors and impress exam graders.
- fuel cost
- road trip
- gas budget
Detailed procedure
Step 1
Enter the one-way distance of your drive.
Step 2
Provide your vehicle’s fuel efficiency and the current fuel price.
Step 3
Set how many times you’ll make the trip, then review gallons needed, total cost, cost per mile, and CO₂ output.
Teaching & troubleshooting tips
Can I work in kilometers and liters?
Yes—convert your numbers first (or switch MPG to km/L by converting) and the calculator will still output fuel and cost totals.