Fuel & Gas Calculators

Gas prices fluctuate, but your driving costs don't have to be a mystery. Use these calculators to estimate trip fuel costs before you leave, track your real MPG over time, and split road trip expenses between passengers. All results are instant and work in your browser.

Fuel Calculators

Fuel Cost Calculator

Estimate fuel cost for any trip. Enter distance, vehicle MPG, and gas price. Includes round-trip toggle and MPG comparison table.

Road Trip Gas Cost Calculator

Calculate road trip fuel cost, split between passengers, and estimate drive time. Includes round-trip toggle and cost-per-mile breakdown.

Calculate your vehicle's miles per gallon from miles driven and gallons used. Includes cost per mile and L/100km conversion.

Fuel Economy Guides

How to Calculate MPG: Formula, Examples & Tips

The exact formula for calculating gas mileage, with real-world examples and common mistakes to avoid.

15 Ways to Improve Gas Mileage (Ranked by Impact)

Practical tips to improve fuel economy by 10-25%, ranked from biggest to smallest MPG impact.