Refinance Calculator
Estimate whether refinancing may lower the payment, reduce interest, shorten the term, or make sense after closing costs. Use the break-even guidance below before replacing an existing loan.
Refinance Tips
Estimate refinance payment savings. Enter the values requested by this specific tool, review the labels before calculating, and use the answer in the context of the decision or comparison you are making. Trying a second set of inputs can show how sensitive the refinance result is to a change in the numbers.
Quick Guide
- Read each refinance field label before entering a value.
- Use consistent units and formats throughout the calculation.
- Review the answer in the context of your original question.
- Change one input at a time when comparing scenarios.
Refinance Estimate
Calculate the specific money, payment, growth, payoff, or return estimate shown above.
Compare Scenarios
Change one assumption at a time to see how rates, time, fees, payments, or contributions affect the result.
Plan the Next Step
Use the number to compare offers, build a budget, set a savings target, or prepare better questions before making a financial decision.
Refinance Formula and Inputs
Break-even time = closing costs ÷ monthly savings.
The most useful financial calculators keep the assumptions consistent. If the rate is annual, the time period, payment schedule, and compounding assumptions should match the way the calculator asks for them.
| Input | How to Use It |
|---|---|
| Current loan balance | Use a realistic value that matches the same time period and scenario as the other inputs. |
| Current rate | Use a realistic value that matches the same time period and scenario as the other inputs. |
| New rate | Use a realistic value that matches the same time period and scenario as the other inputs. |
| New term | Use a realistic value that matches the same time period and scenario as the other inputs. |
| Closing costs | Use a realistic value that matches the same time period and scenario as the other inputs. |
| Monthly savings | Use a realistic value that matches the same time period and scenario as the other inputs. |
Worked Refinance Example
If refinancing saves $150 per month but costs $4,500 upfront, the simple break-even point is 30 months.
After calculating one estimate, change one assumption at a time. That makes it easier to see whether rate, time, payment size, fees, balance, or contribution amount is driving the result.
How to Interpret the Result
A refinance makes more sense when the break-even point is comfortably shorter than the time you expect to keep the loan.
Use the answer as a planning estimate rather than a promise. Real results can change because of taxes, fees, rate changes, market returns, loan rules, payment timing, and personal cash-flow needs.
Common Refinance Mistakes
- Restarting the loan term without checking total interest.
- Ignoring closing costs.
- Focusing only on monthly payment.
- Refinancing shortly before moving.
When to Use the Refinance Calculator
Use this page when comparing financial choices, checking a payment or savings goal, preparing for a purchase, reviewing debt, planning a payoff strategy, or testing what happens if one assumption changes. For important decisions, compare several scenarios and review the numbers with the lender, bank, advisor, tax professional, or official plan documents when needed.
Refinance Calculator FAQs
What does the Refinance calculate?
It calculates or estimates refinance savings and break-even point from the inputs shown on this page.
Which inputs matter most for the Refinance?
The key inputs are current loan balance, current rate, new rate, new term, closing costs, monthly savings. Use values from the same scenario and time period.
How should I interpret the Refinance result?
A refinance makes more sense when the break-even point is comfortably shorter than the time you expect to keep the loan.
What is a useful Refinance example?
If refinancing saves $150 per month but costs $4,500 upfront, the simple break-even point is 30 months.
What mistakes should I avoid?
Restarting the loan term without checking total interest. Ignoring closing costs. Focusing only on monthly payment. Refinancing shortly before moving.
Is the Refinance result guaranteed?
No. It is a planning estimate. Verify current rates, fees, taxes, eligibility rules, account terms, and official documents before making an important financial decision.