Review the cars already on the lot
Run current stock through the numbers and see which units still have margin — and which are already on a short clock.
Free · No sign-up · For dealers
Days on lot calculatorSell before you lose money.
Enter what you paid, what you can sell for, and your monthly holding cost. See how many days of profit you still have — and when to cut the price or wholesale the car.
Break-even calculator · Holding cost · Used-car depreciation · No sign-up
Enter the purchase price and expected sale price to see how long this car can sit.
How to calculate days on lot
Three numbers get you a deadline. Holding cost and depreciation make it honest.
- 1
Enter cost and expected sale
What you paid, any reconditioning, and the price you realistically expect — not the windscreen ask.
- 2
Add holding cost and decline
Monthly lot cost (or floorplan) plus an optional yearly market decline. That is what turns today’s gross into a countdown.
- 3
Read the deadline
See profit if sold today, the cost of each extra week, and the day you miss your margin or hit zero.
When dealers use a days-on-lot calculator
For cars already on the lot, for the days until you lose money, or to test a purchase price. Looking for more dealer tools? See all free tools
See how long until you are at a loss
Find the day profit disappears if the car keeps sitting.
See how long your minimum profit lasts
The profit you still want has a deadline. See how many days you have to sell at the minimum you will accept.
Test a purchase price and the window it gives you
Before you buy, try what you can pay — and see whether the selling window is still comfortable.
Frequently asked questions
Days on lot, holding cost, and used-car break-even — free, no sign-up
What does this days on lot calculator do?
It estimates how many days you can keep a used car before profit hits your minimum, then zero. It uses what you paid, reconditioning, expected sale price, monthly holding cost, and an optional yearly market decline.
How is the deadline calculated?
Profit today is the expected sale minus the purchase cost and minus reconditioning. Each day subtracts the vehicle cost. Depreciation does not cut the same amount every day: it is a percentage of the price you could still sell for on that day, not the first day’s price — so the drop gets smaller as the car is worth less. The deadline is the day profit hits your target, then zero.
What should I enter for monthly holding cost?
Everything it costs to keep the car another month: interest, lot space, insurance, wash, taxes, etc.
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