Refinance Calculator
See whether the new rate actually saves you money. Takes 60 seconds.
- 1 Current loan
- 2 New offer
- 3 Closing costs
- 4 Your results
Tell us about your mortgage today
We need three numbers to figure out what you're paying now. Roughly is fine — you can refine later.
What rate are you being offered?
This is the rate from the lender quote you're considering. If you don't have one yet, plug in today's market average — about 6.25% on a 30-year fixed.
One more thing — closing costs
All-in: appraisal, title, origination, recording, etc. Typical range is 2-5% of the loan. Your lender will give an exact estimate, but a ballpark works for now.
Your refinance numbers
Here's what the math says. Below that, real lenders compete for your loan if you want quotes.
- New monthly payment
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- Monthly savings
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- Break-even point
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- Lifetime interest saved
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Want personalized rate quotes from up to 5 vetted lenders?
Lenders compete for your refi. No credit pull. No upfront fees. Your math above is yours to keep either way.
You're in.
Up to 5 lenders will reach out within 1 business day with their best refi rate for your scenario. No credit pull required for quotes. Reply STOP anytime to opt out. Your math above is yours to keep.
While you wait — read upNumbers above are estimates from standard mortgage math and 2026 program rules. Your actual rate depends on your credit, debt-to-income, property type, and lender pricing. RobotRefi is not a lender and does not originate loans.
How RobotRefi calculates this
Standard amortization math
Your monthly payment is computed from the formula P × i / (1 - (1+i)^-n), where P is the loan balance, i is the monthly rate, and n is the number of payments. Same math your lender uses.
Break-even is the one number that matters
Break-even = closing costs ÷ monthly savings. It tells you the exact month the refi starts paying for itself. If you'd sell or refinance again before then, the deal loses money.
Lifetime savings includes the cost
We subtract closing costs from total interest saved. A refi can save monthly but still lose lifetime if the new term is much longer than what was left on the old loan.