Mileage Calculator
Estimate your mileage deduction or reimbursement from the miles you drove and the IRS standard mileage rate.
How the mileage calculator works
Multiply your miles by the IRS standard mileage rate. For 2026 the business rate was 72.5 cents a mile at the start of the year and rose to 76 cents for miles driven on or after 1 July 2026. Medical and moving rates went from 20.5 to 23.5 cents on the same date. The charity rate is 14 cents and is set by law.
The formula
Example: 1,000 business miles at 76 cents gives $760.00. If part of your driving was before 1 July, calculate those miles at 72.5 cents and add the two results.
Keep a mileage log with the date, destination, purpose and miles for each trip. The standard rate covers gas, wear and depreciation, so you cannot also deduct those. Rates come from IRS standard mileage rates, so check that page for any change.
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Frequently asked questions
What is the IRS mileage rate for 2026?
For business it was 72.5 cents per mile from 1 January 2026 and 76 cents per mile from 1 July 2026.
What miles can I deduct?
Business trips such as visits to clients, errands for work and travel between work sites. Normal commuting does not count.
Do I need a mileage log?
Yes. The IRS expects a record of dates, miles, destinations and the business purpose for each trip.
Can I deduct gas as well as mileage?
No. The standard rate already includes gas, maintenance and depreciation. You choose either the standard rate or actual expenses.
How do I calculate mileage reimbursement?
Multiply the miles by the rate your employer uses, which is often the IRS rate.
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