MPG Improvement Savings Calculator

See how much money you save by improving your vehicle's fuel economy. Compare savings from a small MPG improvement to a dramatic one over 1, 5, and 10 years.

MPG Improvement Savings

$787.50/year

Gallons Saved

250 gal

5-Year Savings

$3,937.50

10-Year Savings

$7,875.00

๐Ÿ’ก At 20 MPG: $2,362.50/yr โ†’ At 30 MPG: $1,575.00/yr

ByPRIYA SHARMAโ€ขUpdated April 4, 2026
|
Reviewed byARJUN MEHTA
|
Fact checked byNEHA KAPOOR

๐Ÿ’ก How to Use the MPG Improvement Savings Calculator

The Value of Improving MPG

Even small improvements in fuel economy add up to significant savings over time. Improving from 20 to 25 MPG saves more than improving from 35 to 40 MPG โ€” because fuel consumption drops faster at lower MPG values.

Annual Savings = Miles/Year ร— Price ร— (1/Old MPG โˆ’ 1/New MPG)

How Much Can You Save?

ImprovementAnnual Savings*5-Year Savings
15 โ†’ 20 MPG$788$3,938
20 โ†’ 25 MPG$473$2,363
25 โ†’ 30 MPG$315$1,575
30 โ†’ 40 MPG$394$1,969
40 โ†’ 50 MPG$189$945

*At 15,000 mi/year and $3.15/gallon

Easy Ways to Gain MPG

  • Proper tire inflation: +3% MPG
  • Remove roof rack when not in use: +2โ€“8% MPG
  • Regular oil changes: +1โ€“2% MPG
  • Clean air filter: +up to 10% (older cars)
  • Eco driving habits: +10โ€“20% MPG

MPG Improvement Savings Calculator FAQ