How this gas vs diesel cost calculator works
Annual miles are divided by each vehicle MPG and multiplied by the corresponding fuel price.
How to use it
- Annual miles. Enter the value in mi.
- Gas vehicle MPG. Enter the value in MPG.
- Gas price. Enter the value in $/gal.
- Diesel vehicle MPG. Enter the value in MPG.
- Diesel price. Enter the value in $/gal.
- Request the result. Select “Show my result.” No account or email is required.
What to do with the number
This is a fuel-only comparison and excludes purchase price, maintenance, emissions equipment and resale value. Use real observed MPG from comparable duty cycles when possible.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.
