car refinance calculator, ran the numbers before applying and here's what it actually showed

[u/sugondesenots]

Before going through any application, wanted to know if refinancing was actually worth it or just something that sounds good on paper. Most calculators only show the new monthly payment, which doesn't tell the full story because extending the term can make the payment look great while costing more overall.

The situation was a $31,000 balance at 11.8% with 54 months remaining. Plugged that into caribou's calculator alongside a realistic new rate for the good credit tier, which is averaging around 7.59% right now based on actual funded loans, and it shows total interest saved not just the monthly figure.

Total interest saved over the remaining term came out to well over $4,000. That's the difference between what stays in the loan and what stays in the bank. Monthly savings alone felt abstract but the lump sum made it concrete. That number is what moved me. Went through prequalification the same day.

[u/Dry-Zucchini-6682]

The breakeven calculation is underrated too. If there's a processing fee involved, knowing exactly how many months until the savings exceed that cost tells you whether timing matters for your situation.