How Fuel Cost Scenario Comparator Works?
This tool works by subtracting the fuel cost of Scenario B from the fuel cost of Scenario A. The result is the dollar gap between 2 driving plans.
Price Scenario A
Calculate the first plan's fuel cost. The default is 500 miles at 25 miles per gallon (MPG) and $3.50 per gallon, which costs $70.
Price Scenario B
Calculate the second plan's fuel cost. The default is 450 miles at 32 MPG and $3.80 per gallon, which costs $53.44.
Enter both costs
Type each scenario cost into the matching field.
Read the difference
The tool shows the absolute dollar gap between the 2 plans.
Fuel Cost Scenario Comparator Formula
The formula is Difference = |Scenario A Cost − Scenario B Cost|. The vertical bars mean the result is always positive.
Difference = |Scenario A Cost − Scenario B Cost|Formula variables
- Scenario A Cost
- Fuel cost of the first plan: (Miles ÷ MPG) × Price.
- Scenario B Cost
- Fuel cost of the second plan.
Worked example
- Scenario A Cost (500mi, 25mpg, $3.50): $70.00
- Scenario B Cost (450mi, 32mpg, $3.80): $53.44
- Scenario A: (500 ÷ 25) × $3.50 = $70.00.
- Scenario B: (450 ÷ 32) × $3.80 = $53.44.
- Difference: $70.00 − $53.44 = $16.56.
Result: $16.56 ($ difference)
Scenario B wins in this example even with a higher fuel price, since the shorter route and higher MPG outweigh the $0.30 per gallon price gap.
Fuel Cost Scenario Comparator Conversion Table
The table shows the gap between 4 Scenario A costs and 3 Scenario B costs.
Rows: Scenario A Cost (500mi, 25mpg, $3.50) ($). Columns: Scenario B Cost (450mi, 32mpg, $3.80) ($). Cells: $ difference.
| $ | $40.00 | $53.44 | $70.00 |
|---|---|---|---|
| $50.00 | $10.00 | $3.44 | $20.00 |
| $70.00 | $30.00 | $16.56 | $0.00 |
| $90.00 | $50.00 | $36.56 | $20.00 |
| $120.00 | $80.00 | $66.56 | $50.00 |
The tool reports the size of the gap, not the direction. Check which scenario has the lower cost before choosing.
What is Fuel Cost Scenario Comparator?
The Fuel Cost Scenario Comparator is a tool that shows the dollar difference between 2 fuel cost plans. The tool helps choose between routes, vehicles, or timing.
Each scenario can differ in distance, MPG, and fuel price at the same time. Pricing each plan in full and comparing the totals avoids mistakes from comparing one factor alone.
The comparator accepts any 2 costs, so the scenarios can come from any calculator on the site.
What are the uses of Fuel Cost Scenario Comparator?
There are 4 main uses of the Fuel Cost Scenario Comparator: choosing between 2 routes, assigning vehicles to trips, testing fill-up timing, and comparing vacation destinations.
Choosing between 2 routes
Drivers compare a short urban route with a longer interstate route.
Assigning vehicles to trips
Families decide which car makes which trip.
Testing fill-up timing
Drivers compare filling now with filling later at a different price.
Comparing vacation destinations
Travelers compare fuel for a near destination with a far one.
Need every metric in one place? Open the main MPG Cost Calculator or browse all 101 fuel calculators.