Mileage Calculator
Calculate driving distance, fuel costs, and reimbursement for trips using IRS mileage rates.
A mileage calculator estimates your annual and monthly fuel costs based on driving habits, vehicle efficiency, and gas prices.
Examples
12,000 miles at 25 MPG, $3.50/gal
Frequently Asked Questions
What is the average American annual mileage?
How much can I save by improving MPG?
Quick Tips
- •Use the MPG comparison table to see how much you could save by switching to a more efficient vehicle.
- •Keeping tires properly inflated can improve your MPG by up to 3%.
- •Combining short errands into one trip reduces cold-start fuel waste and lowers your annual cost.
A mileage calculator estimates your annual and monthly fuel costs based on driving habits, vehicle efficiency, and gas prices.
How to Use This Calculator
Enter your annual miles driven, your vehicle's MPG (miles per gallon), and the current gas price. The calculator shows your annual and monthly fuel costs plus a comparison at different MPG levels.
Understanding the Formula
Gallons/Year = Annual Miles / MPG. Annual Cost = Gallons/Year x Gas Price. Cost/Mile = Annual Cost / Annual Miles.
Examples
12,000 miles at 25 MPG, $3.50/gal
Gallons: 12,000 / 25 = 480. Annual cost: 480 x $3.50 = $1,680. Monthly: $140. Cost per mile: $0.14.
Frequently Asked Questions
What is the average American annual mileage?
The average American drives approximately 13,500 miles per year according to the Federal Highway Administration.
How much can I save by improving MPG?
Going from 20 MPG to 30 MPG at 12,000 miles/year and $3.50/gal saves approximately $700/year. The biggest savings come from improving low-MPG vehicles, as the relationship is non-linear.
Assumptions & Limitations
- Assumes a constant MPG rating; real-world efficiency varies with driving style, terrain, and weather.
- Gas price is treated as fixed for the entire year; actual prices fluctuate seasonally.