Mileage Reimbursement Calculator
Calculate mileage reimbursement using the 2025 IRS standard rates for business, medical or charity driving, or your own custom rate. Calculates in your browser.
Reimbursement
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Show the math
The standard mileage method multiplies the miles you drove by the IRS rate for that purpose:
reimbursement = miles × rate per mile
For 2025 the IRS rates are $0.70/mi for business, $0.21/mi for medical or moving, and $0.14/mi for charity. The rate is meant to cover fuel, wear, insurance and depreciation.
Rates are set yearly by the IRS; employers may reimburse at a different rate. Everything is calculated in your browser.
What this does
A mileage reimbursement calculator works out what you are owed using the 2025 IRS standard rates for business, medical, or charity driving, or your own custom rate.
How to use it
- Enter the miles driven.
- Choose the purpose or rate.
- Or enter a custom rate.
- Read the reimbursement.
How it works
The standard method multiplies miles by a per-mile rate covering fuel, wear, insurance, and depreciation. For 2025 the IRS rates are $0.70 business, $0.21 medical, $0.14 charity.
reimbursement = miles × rate
Understanding your result
The standard per-mile rate already bundles fuel, wear, insurance, and depreciation, so do not also claim those costs separately or you double-count. Use the rate that matches the purpose of the trip, since business, medical, and charity rates differ sharply, and keep a contemporaneous mileage log, because that record is what a claim or an audit relies on.
Example
300 business miles at $0.70 is $210 reimbursed.
Sources & methodology
Last updated .
Frequently asked questions
How is mileage reimbursement calculated?
The standard mileage method multiplies the miles you drove by the per-mile rate for that purpose, which is meant to cover fuel, wear, insurance and depreciation.
What are the 2025 IRS rates?
For 2025 the IRS rates are $0.70 per mile for business, $0.21 for medical or moving, and $0.14 for charity.
Can my employer use a different rate?
Yes. Employers may reimburse above or below the IRS rate; this tool lets you enter a custom rate too.
Is my data kept?
No. Everything is computed locally in your browser.
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