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Calcimator

Gas Mileage Calculator

Calculate your fuel economy in MPG, cost per mile, and annual fuel costs. Convert between MPG, L/100km, and km/L.

Inputs

miles
gal
$/gal

Results

Miles per Gallon

29.17 MPG

Cost per Mile$0.12
Trip Fuel Cost$42
Monthly Fuel Cost$120
Annual Fuel Cost$1,440
L/100km8.06
km/L12.4

Miles per Gallon

29.17 MPG

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Distance Driven — Distance traveled or between points. Accepts values from 1 miles to 100,000 miles (default: 350 miles).
  3. Gallons Used — enter a number in gal. Accepts values from 0.1 gal to 1,000 gal (default: 12 gal).
  4. Gas Price — enter a dollar amount in /gal. Accepts values from $0.5 /gal to $15 /gal (default: $3.5 /gal).
  5. Expand "Advanced Options" for additional fine-tuning. These optional inputs let you model more specific scenarios:
  6. Annual Driving — enter a number in miles. Accepts values from 1,000 miles to 100,000 miles (default: 12,000 miles).
  7. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  8. Miles per Gallon — shown as a numeric value. This is the primary result of this calculator.
  9. Cost per Mile — shown as a dollar amount.
  10. Trip Fuel Cost — shown as a dollar amount.
  11. Monthly Fuel Cost — shown as a dollar amount.
  12. Annual Fuel Cost — shown as a dollar amount.
  13. L/100km — shown as a numeric value.
  14. km/L — shown as a numeric value.
  15. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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