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Lease Mileage & Overage Calculator

Turn your lease mileage allowance into miles per day and week, project your overage penalty, and compare buying extra miles upfront against paying at lease end.

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mi

Check your last two oil changes or your odometer a year ago.

$

Usually $0.15-$0.30. It is printed in your lease contract.

$

Optional. Dealers often sell extra miles at a discount at signing.

mi

Optional. Leave blank if the lease has not started.

Optional. Used with miles driven to project your finish.

How lease mileage limits and overage charges work

Every lease sets an annual mileage allowance, and the allowance is not a suggestion. Drive past it and you owe a per-mile charge at lease end, typically $0.15 to $0.30 depending on the brand. The charge sounds trivial per mile and is not trivial in aggregate: 8,000 extra miles at $0.25 is $2,000, due as a single bill when you hand the keys back.

The reason the limit exists is residual value. The leasing company set your payment by predicting what the car would be worth at lease end, and that prediction assumed a specific odometer reading. Extra miles reduce what they can sell the car for, so the overage charge is them recovering the difference.

Most people misjudge their own mileage, and the way allowances are quoted encourages it. A 12,000-mile allowance sounds generous. It is 33 miles a day, every day, including weekends and vacations. A 20-mile each-way commute alone uses 40 a day on workdays and puts you at roughly 10,400 miles a year before a single errand or road trip.

The good news is that this is the most predictable cost in the entire lease. Your actual annual mileage is a number you can look up rather than guess — check the odometer readings on your last two oil change receipts, or compare your registration renewal notices. Once you know it, choosing the right allowance is arithmetic.

And if you are already mid-lease and over pace, you have more options than paying the bill. Buying miles in advance is usually cheaper than paying at the end, and a buyout or trade at lease end can make the overage charge disappear entirely.

Total miles allowed = Annual Allowance x (Term / 12)
Miles per day = Annual Allowance / 365

Overage = (Actual Total Miles - Total Allowed) x Rate per Mile
Mid-lease pace = Miles Driven / Months Elapsed x Term

Key takeaways

  • A 12,000-mile allowance is 33 miles a day — including weekends, holidays, and every day you do not drive at all.
  • Overage runs $0.15-$0.30 per mile. 8,000 miles over at $0.25 is a $2,000 bill at lease end.
  • Buying extra miles at signing typically costs less per mile than paying overage later, and unused prepaid miles are usually refundable.
  • Look up your real annual mileage from oil change receipts instead of estimating it. Almost everyone guesses low.
  • If you buy the car out at lease end or trade it in, the overage charge generally goes away — you are keeping the miles you used.

What each allowance means day to day

Annual numbers are hard to reason about. Daily and weekly numbers are not. Here is what each common allowance actually permits, and roughly who it fits.

Mileage allowances translated into real driving

Annual allowancePer monthPer weekPer dayRealistic fit
7,50062514420.5City driver, transit commute, second car
10,00083319227.4Short commute under 10 miles each way
12,0001,00023132.9US average — commute up to ~15 miles each way
15,0001,25028841.120-25 mile commute or regular weekend travel
18,0001,50034649.3Long commute plus frequent road trips
20,0001,66738554.830+ mile commute, rideshare, heavy travel

Overage rates and how brands differ

The per-mile charge is set by the leasing company and printed in your contract, not negotiated at lease end. Luxury brands generally charge more because the vehicles depreciate in larger absolute dollars.

Typical excess mileage rates by brand tier (verify against your contract)

Brand tierTypical rateCost of 5,000 extra miles
Mainstream (Toyota, Honda, Hyundai, Kia)$0.15 - $0.20$750 - $1,000
Mainstream trucks/SUVs (Ford, Chevrolet, Ram)$0.20 - $0.25$1,000 - $1,250
Near-luxury (Acura, Lexus, Volvo, Genesis)$0.20 - $0.25$1,000 - $1,250
Luxury (BMW, Mercedes-Benz, Audi)$0.25 - $0.30$1,250 - $1,500
High-end / low volume$0.30 - $0.50$1,500 - $2,500

Buying miles upfront vs. paying at the end

Most captive lenders let you purchase extra miles either at signing or partway through the lease, at a discount to the end-of-lease rate. This is one of the few genuinely good deals in a finance office, provided you actually need the miles.

8,000 extra miles, three ways

ApproachRate per mileTotal costNotes
Prepaid at signing$0.12 - $0.18$960 - $1,440Cheapest; unused miles usually refunded
Purchased mid-lease$0.15 - $0.22$1,200 - $1,760Available from most captives on request
Paid at lease end$0.15 - $0.30$1,200 - $2,400Most expensive; a lump sum at turn-in
Higher allowance from the start~$0.02 - $0.04 in payment$160 - $320 in extra paymentsLowers residual, raises payment slightly

Note the last row: choosing a higher allowance at signing is usually the cheapest option of all, because it works by lowering the residual value rather than charging you a per-mile fee. The trade-off is a modestly higher monthly payment for the whole term. If you are confident you will exceed the standard allowance, taking the higher tier upfront beats every remedy available later.

Two cautions on prepaid miles. First, confirm in writing whether unused miles are refundable — policies vary by lender and a non-refundable purchase turns a hedge into a bet. Second, prepaid miles do not raise your allowance for wear-and-tear purposes, so heavy use still exposes you to separate charges. The mileage limits and overage guide covers the contract language to look for.

You are already over. Now what?

  1. Work out your real paceDivide miles driven by months elapsed, then multiply by the full term. Enter those numbers above and the calculator will tell you exactly how far over you will finish and what it costs.
  2. Calculate the monthly cap that saves youSubtract miles driven from total allowed, then divide by the months remaining. That is your ceiling. If it is unrealistically low, skip to the next steps rather than trying to white-knuckle it.
  3. Price a mid-lease mile purchaseCall the leasing company, not the dealer, and ask what extra miles cost now. Compare against the end-of-lease rate in your contract. If the discount is meaningful and the miles are refundable, buy them.
  4. Check your equity before assuming you owe anythingLook up the car's current market value against your buyout price. If the car is worth more than the buyout, you have positive equity — buying it out or trading it in wipes out the overage charge, because the miles are no longer the lender's problem.
  5. Consider ending early into a new leaseDealers frequently waive remaining payments and overage on a pull-ahead into a new lease from the same brand. This is a real option in the last few months, though it is only a good deal if the new lease terms stand up on their own.

If you are consistently exceeding allowances, the deeper question is whether leasing suits your driving at all. High-mileage drivers usually do better buying, because they capture the value of the miles they are paying for instead of renting them. Compare both paths with your actual annual mileage in the lease vs buy calculator, and check the lease buyout vs return guide for how the end-of-lease decision plays out.

Frequently asked questions

How many miles per day is a 12,000 mile lease?

About 33 miles per day, or 1,000 per month, or 231 per week. That total includes every day of the year, so days you do not drive still count against the average. A 15-mile each-way commute uses roughly 7,200 miles a year on its own, leaving about 4,800 for everything else.

What happens if I go over my lease mileage?

You pay a per-mile excess mileage charge at lease end, typically $0.15 to $0.30 per mile as specified in your contract. The charge is billed as a lump sum when you return the vehicle, alongside any excess wear charges and the disposition fee. If you buy the car out or trade it in instead of returning it, the overage charge generally does not apply.

Is it cheaper to buy extra lease miles upfront?

Usually yes. Prepaid miles typically cost $0.12 to $0.18 each versus $0.15 to $0.30 at lease end, and many lenders refund unused prepaid miles. Cheaper still is selecting a higher allowance when you sign, which works by lowering the residual value and costs roughly $0.02 to $0.04 per mile in additional payment rather than a per-mile fee.

Can I negotiate the overage charge at lease end?

The rate itself is fixed in the contract, but there is often room in practice. Dealers frequently waive overage when you lease or buy another vehicle from the same brand, and leasing companies sometimes reduce charges for long-standing customers who ask. Your strongest position is positive equity: if the car is worth more than the buyout price, buying it out or trading it in removes the charge entirely.

How do I find out how many miles I actually drive?

Check the odometer readings recorded on your last two oil change or service invoices and divide the difference by the time between them. Vehicle registration renewals and state inspection records often list mileage too. This is far more reliable than estimating — most drivers underestimate their annual mileage by several thousand miles.

Do unused lease miles get refunded?

Miles included in your standard allowance are not refunded — you paid for them in the payment whether you drove them or not. Prepaid excess miles purchased separately usually are refundable, but policies differ by lender, so get the refund terms in writing before purchasing. This is why over-buying your allowance has a real cost.

Should I lease if I drive a lot of miles?

Often not. High-mileage drivers pay a premium for allowances and still risk overage, while getting no benefit from the miles they consume. Buying lets you keep the value of what you paid for and removes the mileage ceiling entirely. Compare both with your real annual mileage rather than the allowance you were quoted — the gap widens fast above about 18,000 miles a year.

Does going over on mileage affect my wear and tear charges?

Indirectly, yes. Excess mileage and excess wear are billed separately, but more miles produce more tire wear, more paint chips, and more interior wear, all of which can trigger separate charges. Prepaying miles does not protect you from wear charges. Photograph the vehicle at turn-in and keep maintenance records to dispute anything unreasonable.