Mileage Calculator
Quickly find your Mileage result with our free Mileage Calculator. Simple, fast, and accurate.
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What is a Mileage Calculator?
The Mileage Calculator helps you calculate mileage reimbursement or trip costs based on distance and rate. Just enter your numbers and the tool does the rest — no manual math, no guesswork.
How to calculate Mileage manually (the formula)
The specific formula depends on what you are calculating. The calculator applies the correct equation automatically, but understanding the formula helps you verify the results and adapt them to your own needs.
Example calculation
Enter your values into the calculator and it will produce an instant result. For a step-by-step walkthrough, try different inputs and observe how each one affects the outcome.
Common mistakes
- Using the wrong rate for the trip purpose — Business, medical, moving, and charity have different IRS mileage rates.
- Not keeping a contemporaneous log — The IRS requires a timely log of miles driven. Reconstructed logs may not hold up in an audit.
- Double-dipping with actual expenses — The standard mileage rate includes depreciation and maintenance. You cannot deduct both standard mileage and actual repairs.
Frequently asked questions
How do I calculate mileage reimbursement?
Multiply the total miles driven by the standard mileage rate. For 2025, the IRS rate is 70 cents per mile for business.
How does the mileage reimbursement rate work?
The rate covers gas, maintenance, depreciation, and insurance. It is set annually by the IRS for business, medical, and moving purposes.
What is the standard mileage rate for 2025?
The IRS standard mileage rate for business is 70¢ per mile, for medical/moving is 21¢ per mile, and for charity is 14¢ per mile.
Can I calculate mileage for business trips?
Yes. Enter your business miles and the applicable rate. Keep a mileage log with dates, destinations, and purposes.
How do I track mileage for tax purposes?
Record the date, starting and ending odometer readings, destination, and purpose. Apps or a simple logbook both work.
What’s the difference between actual and standard mileage?
Actual costs track every expense (gas, repairs, insurance). Standard mileage uses a fixed per-mile rate set by the IRS.