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• Gas Calculator (Homepage)

  Our flagship trip fuel cost calculator — distance, MPG and gas price in, total cost, gallons and cost per mile out.

Calculators

• MPG Calculator

  Find your car's real miles per gallon from your last fill-up.

• Fuel Cost Calculator

  Total fuel cost for any distance, car and pump price.

• Trip Cost Calculator

  Fuel, tolls and per-person split for a whole road trip.

• Cost Per Mile Calculator

  What each mile you drive really costs in fuel — plus monthly and yearly totals.

• Gas Mileage Calculator

  MPG from odometer readings, in MPG, km/L or L/100km.

• EV vs Gas Cost Calculator

  Compare charging cost per mile with gas cost per mile, side by side.

About & Trust

• About Us

  Who runs GasCalculator.org and why it exists.

• Methodology & Sources

  How every calculator works, the data sources behind our reference figures, and our review process.

• Contact Us

  Corrections, feedback and partnership enquiries.

Legal

• Privacy Policy

  What data we collect (very little), cookies, and your rights.

• Terms & Conditions

  The rules for using this free website and its calculators.

• Disclaimer

  Estimates only — why real-world costs vary and what our figures do not cover.