← All Refinance to 15-Year calculations

Refinance to 15-Year on a $800K mortgage at 8.5%

New 15-year loan at 6.25% — higher payment, far less interest. Monthly principal & interest: $6,859.38.

Free calculators for everyone — the 5–7 Year Alternative serves USA residents only.

Time to payoff15.0 yrs
Years saved15.0
Interest saved$979,782
Total interest$434,689

Every strategy ranked for this loan

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The 5–7 Year Alternative

Pay off your mortgage in 5–7 years instead of 30. *With qualification.

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#StrategyMonthly paymentPayoffInterest saved
01Refinance to 15-Year$6,859.3815.0 yrs$979,782
02Bi-Weekly Payments$6,151.3122.4 yrs$424,561
03Extra $500/Month$6,151.3122.6 yrs$414,351
04$5,000 Yearly Lump Sum$6,151.3123.7 yrs$351,996
05Extra $200/Month$6,151.3126.3 yrs$210,092
06Recast with $25K$6,151.3126.6 yrs$227,269
07Standard 30-Year$6,151.3130.0 yrs$0

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How it works

You replace the 30-year loan with a new 15-year loan at 6.25%. The monthly payment jumps, but the loan is gone in half the time and total interest drops dramatically.

Assumptions

Illustrative 15-year refinance at 6.25% on the full current balance. No closing costs, points, or fees included — real refinances carry thousands in costs that change the math. Rate availability depends on credit, market conditions, and lender approval.

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Calculations are illustrative only, based on the assumptions shown. Not financial advice, not a promise of savings or payoff time, and not a loan quote.