Avoid excess mileage charges
See early whether your current driving pattern is likely to take you over your lease allowance.
Free lease mileage calculator
Lease mileage calculator – check your remaining mileage
Use this lease mileage calculator to check your remaining mileage, see if you are on track, and estimate your projected mileage at the end of your lease. Enter your annual allowance, lease term and current mileage to instantly see your position.
Try our excess mileage cost calculator or lease vs buy calculator for more detailed checks.
- Works in miles and kilometres
- Uses simple lease-agreement wording
- No login and no stored data
Checking your mileage regularly helps you avoid expensive excess mileage charges at the end of your lease.
Use the calculatorWhy drivers use this calculator
Know your safe monthly mileage
Get a simple monthly mileage figure you can use from now until the end of the agreement.
Check your end-of-lease position
Use the projected mileage figure to estimate where you are likely to finish if nothing changes.
Annual mileage calculator
Enter your lease details to see your mileage position.
Current position
—Total contract allowance
—Remaining mileage
—Remaining time
—Allowed monthly mileage
—Current mileage
—Mileage difference
—Projected mileage
—Nothing is saved. All calculations happen in your browser.
What this lease mileage calculator shows
- Your total contract allowance based on annual mileage allowance and lease term
- Your remaining mileage and remaining time
- The monthly mileage you can drive from now on to stay within the allowance
- Your projected mileage at the end of the lease
- Your mileage difference versus the contract allowance
How to calculate lease mileage allowance
- Enter the annual mileage allowance from your lease agreement.
- Enter the full lease term in months.
- Add the distance already driven and the months elapsed.
- Review your remaining mileage, current position and projected mileage instantly.
How lease mileage allowance works
Annual allowance
Most lease agreements set a yearly mileage allowance, such as 8,000, 10,000 or 12,000 miles per year. This calculator converts that into a total contract allowance using your lease term.
Current mileage
Your current mileage is the average distance you have driven per month so far. Comparing this with your allowed monthly mileage shows whether you are comfortably inside the allowance or drifting over it.
Projected mileage
Projected mileage estimates your end-of-lease mileage if you continue at your current usage level. This makes it easier to adjust early rather than wait for excess mileage charges at the end.
Who this calculator is for
Use this page if you lease a car, van or other vehicle and want a quick answer to one question: are you on track with your mileage allowance?
Drivers checking monthly usage
See how much mileage you can still use each month without exceeding the agreement.
Drivers part way through a lease
Find out whether your current mileage is higher or lower than it should be at this stage.
Drivers close to lease end
Estimate your likely end-of-lease mileage and whether an excess mileage charge is becoming likely.
Lease mileage calculator FAQ
What is annual mileage allowance?
Annual mileage allowance is the distance you are allowed to drive each year under your lease agreement. The total contract allowance depends on both the yearly allowance and the lease term.
How do you calculate total contract allowance?
Total contract allowance is calculated by multiplying the annual mileage allowance by the lease term in years. For example, 10,000 miles per year over 36 months equals 30,000 miles in total.
What does mileage difference mean?
Mileage difference is the gap between your projected mileage and your total contract allowance. A positive number means you are projected to go over. A negative number means you are projected to finish under the allowance.
Can I use this for kilometres and miles?
Yes. Use the unit toggle at the top of the calculator. The labels and calculations update instantly.
Does this save my lease data?
No. The calculator runs entirely in your browser. Share links work by storing values in the page URL only.