What Is the Miles to Dollars Calculator?
This calculator converts the number of miles you drive into a dollar amount. It estimates the real cost of a trip by combining two things: the fuel you burn (driven by gas price and your vehicle's fuel economy) and a per-mile allowance for maintenance such as tires, oil, and general wear. The result is a clear total cost plus a handy cost-per-mile figure you can reuse for any distance.
How to Use It
Enter the trip distance in miles, the price you pay per gallon of fuel, your vehicle's fuel economy in miles per gallon (MPG), and an optional maintenance cost per mile. Drivers often use the IRS-style estimate of around $0.05–$0.15 per mile for maintenance, but you can set your own. Click calculate to see the total and the breakdown.
The Formula Explained
The core equation is $$\text{cost} = \text{miles} \times \text{cost\_per\_mile}$$ where $$\text{cost\_per\_mile} = \frac{\text{fuel\_price}}{\text{MPG}} + \text{maintenance\_rate}$$ Dividing fuel price by MPG gives the fuel cost of a single mile; adding the maintenance rate accounts for non-fuel wear. Multiplying by total miles scales it to your whole trip.
Worked Example
Suppose you drive 100 miles, fuel costs $3.50/gallon, your car gets 25 MPG, and maintenance is $0.10/mile. Fuel per mile = \(3.50 \div 25 = \$0.14\). Cost per mile = \(0.14 + 0.10 = \$0.24\). Total cost = $$100 \times 0.24 = \$24.00$$ made up of $14.00 fuel and $10.00 maintenance.
FAQ
Should I include maintenance? If you only want pure fuel cost, set the maintenance rate to 0. Including it gives a more realistic total cost of ownership for the trip.
What MPG should I use? Use your real-world average, which is often lower than the EPA sticker, especially in city driving or cold weather.
Does it work for electric vehicles? Not directly — for EVs, replace fuel price with cost per "gallon equivalent" or use a separate cost-per-mile figure based on electricity rates.
