Refinance Calculator

See how much a lower rate saves you each month.

Monthly savings

$227

Total savings

$67,963

Old monthly payment

$1,688

New monthly payment

$1,461

Interest Comparison

Interest Over Time

Interest Over Time

YearOld InterestNew InterestSavings
1$16,128$12,383$3,746
3$15,557$11,842$3,715
5$14,907$11,244$3,662
7$14,166$10,584$3,582
9$13,323$9,854$3,469
11$12,363$9,048$3,315
13$11,271$8,157$3,114
15$10,027$7,172$2,854
17$8,611$6,085$2,526
19$6,999$4,883$2,116
21$5,163$3,555$1,609
23$3,074$2,087$987
25$696$466$230

Understanding Refinance

The refinance calculator shows you exactly how much money you can save by replacing your current loan with a new one at a lower interest rate or different terms. Refinancing is one of the most powerful financial moves available to homeowners and borrowers, but it only makes sense when the savings outweigh the closing costs and fees associated with the new loan. This calculator takes your current loan balance, interest rate, and remaining term along with the proposed new rate and term to calculate your new monthly payment, monthly savings, and total savings over the life of the loan. It also factors in estimated closing costs so you can see your true net savings and calculate how many months it will take to break even on the refinancing costs. Even a small reduction in interest rate can produce significant savings on a large loan over many years. For example, reducing your mortgage rate by just one percentage point on a three hundred thousand dollar loan can save you tens of thousands of dollars over the loan term. However, refinancing to a longer term may lower your monthly payment while actually increasing your total cost. This calculator helps you evaluate all scenarios and make an informed decision about whether refinancing is the right move for your financial situation.

Practical Example

Formula: monthly savings = old payment − new payment, where each payment uses M = P[r(1+r)^n] / [(1+r)^n − 1]. Total savings = monthly × remaining months.

Frequently Asked Questions

Should I refinance my mortgage?

Refinancing is often worth it when the new rate is at least 0.5-1% lower and you'll stay long enough to recoup closing costs.

How do I calculate refinance savings?

Compare the new monthly payment to the current one and multiply the difference by remaining months, then subtract closing costs.

Are there fees to refinance?

Yes — closing costs typically run 2-5% of the loan; this calculator focuses on monthly savings, not all upfront fees.

What factors can affect my results?

Multiple factors influence financial calculations including interest rates, time periods, tax implications, fees, and inflation. Always consider these variables when planning and use conservative estimates for critical decisions.

How often should I recalculate?

Review your calculations whenever your financial situation changes significantly, or at least annually. Major life events like job changes, marriage, or market shifts warrant immediate recalculation.

Disclaimer: This calculator provides estimates for informational purposes only. Actual results may vary. Consult a qualified professional for personalized advice.

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