Car Lease Calculator
Estimate a monthly auto lease payment from vehicle price, residual value, money factor, lease term, down payment, sales tax, and fees — with a full breakdown of depreciation charge, finance charge, and total lease cost.
Input
End-of-lease vehicle value. Enter a percent (e.g. 58) or a dollar amount, based on the mode above.
The lease's interest rate expressed as a small decimal. Multiply by 2400 for an approximate APR.
Output
| Metric | Value |
|---|---|
| No data yet | |
Guides
How a car lease payment is built
A lease payment isn't a loan payment — you're paying for the vehicle's depreciation over the lease term plus a finance (rent) charge on the money tied up in it, not the full purchase price. This tool breaks both pieces out separately so you can see where your money goes.
How this tool works
- Enter the vehicle price (or negotiated cap cost) and the residual value — the car's contractual worth at lease-end, either as a percent of the price or a flat dollar amount.
- Enter the money factor — the lease's interest rate expressed as a small decimal (dealers often quote it this way instead of an APR). Multiply it by 2400 for an approximate APR, which this tool does for you automatically.
- Set the lease term, any down payment (cap cost reduction), sales tax rate, and fees due at signing.
- The Lease Summary shows your total monthly payment broken into its depreciation, finance charge, and tax components, plus the adjusted cap cost, residual value, approximate APR, amount due at signing, and total lease cost over the full term.
The formulas
- Adjusted Cap Cost = Vehicle Price − Down Payment
- Depreciation Charge = (Adjusted Cap Cost − Residual Value) ÷ Lease Term
- Finance Charge = (Adjusted Cap Cost + Residual Value) × Money Factor
- Base Monthly Payment = Depreciation Charge + Finance Charge
- Approx. APR ≈ Money Factor × 2400
Common uses
- Sanity-checking a dealer's quoted monthly payment before signing
- Comparing money factor and residual value across competing lease offers on the same vehicle
- Estimating total out-of-pocket cost (due at signing + all monthly payments) before committing
- Deciding between a lease and a loan alongside a car loan/amortization calculator
Privacy
This tool runs entirely in your browser. Your numbers are never uploaded to a server.
Is this exact?
It models the standard U.S. lease-payment formula (cap cost, residual, money factor, tax on the payment) used by most dealers, but actual paperwork can add lender-specific fees, acquisition-fee capitalization rules, or a different tax method depending on your state — treat this as a close estimate, not a final quote.
Use it from code
From 3 credits per callREST API
curl -X POST https://api.iotools.cloud/v1/tool/car-lease-calculator \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"vehiclePrice": "32000",
"residualMode": "percent",
"residualValue": "58",
"moneyFactor": "0.0015",
"leaseTerm": "36",
"downPayment": "2000",
"taxRate": "6",
"fees": "595"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `car-lease-calculator` tool (Car Lease Calculator) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.