Most car payment calculators ask for one number — the loan amount — and leave you to figure out what that number even is. But nobody finances the sticker price. The amount on your contract is the price minus your trade-in, plus sales tax, minus the cash you put down.
Our new auto loan calculator does that arithmetic for you, the way a dealer’s finance office would:
- Trade-in aware — in most states the trade-in reduces your taxable amount, not just your balance, and the tool reflects that.
- Four honest numbers — monthly payment, amount financed, total interest, and the all-in cost of the car including your down payment.
- Term comparison in one click — flip between 36, 48, 60, 72, and 84 months and watch the payment fall while the lifetime interest climbs.
- Instant and shareable — everything runs in your browser, and your inputs live in the link, so you can send a scenario straight to whoever you’re car-shopping with.
Try it before you set foot on a lot, and if you write about cars or personal finance, the calculator is embeddable on your own site with one iframe.