Floor Plan Interest Calculator
See what floor plan financing costs on a car, from interest and flat fees, based on how long it sits.
Last checked November 14, 2026
- Interest while the car sits
- $133.15
- Total floor plan cost on this car
- $208.15
- Cost per day
- $3.47
How it works
Floor plan interest is charged on the amount financed for each day the car sits. Enter the amount, the rate, the days and any flat fees to see the cost per car and per day.
Why age matters
Every extra day costs interest, so a car that sits 90 days costs far more to finance than one that sells in 30.
Common questions
How is floor plan interest calculated?
Usually amount financed times the yearly rate, divided across the days the car is on the plan. Your lender's terms control, so check them.
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