Free IRS Mileage Calculator 2024 and 2025

Calculate your reimbursement or tax deduction for mileage with our mileage calculator.

Use our free IRS mileage rate calculator below to estimate the reimbursement or tax deduction you are entitled to for your driving.

Keep in mind that this IRS business mileage calculator is useful for a general overview of your reimbursement and will not be enough for you to receive your remuneration. To do that, you must keep a compliant mileage log for your trips.

See the standard IRS mileage rates from previous years.

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How to calculate mileage reimbursement manually

If you want to calculate mileage reimbursement or tax write-off manually, here’s an easy example.

Let’s say you drive your car for both business and private purposes. You keep a mileage log so that you can see exactly how many miles you have driven for business. Your records show that you drove 7000 miles for business from January 2025 until the end of May.

To calculate your total reimbursement, multiply your miles by the appropriate IRS mileage rate for 2025. 

Your calculation of mileage for taxes would look like this:

7000 x 0.70 = $4,690 (business reimbursement)

To get that reimbursement, always ensure you have logged everything in your mileage log and can provide proof if necessary.

Also read: Guide to IRS Mileage Reimbursement  

Make sure your mileage logs are IRS-compliant

The easiest way to ensure your mileage logs are compliant is to use a mileage tracker app such as Driversnote. The app keeps you up-to-date on mileage rates, and you can upload older trips to find your reimbursement. You can add trips manually or use automatic mileage tracking to ensure you never miss a trip.

If you use the vehicle for personal trips, remember to log and categorize business, medical, charity, moving, and personal miles. 

Also read: How to calculate mileage for reimbursement  

• Can I calculate my fuel costs with this mileage calculator?

No, this calculator estimates your mileage reimbursement by inputting the number of miles you drove for business purposes and multiplying it by the standard IRS mileage rate.