Refinance Calculator USA 2026
Compare your current mortgage against a 2026 refinance in the USA. See monthly savings, lifetime interest saved and how many months to break even on closing costs.
Refinance Calculator USA 2026 — the quick answer
Compare your current mortgage against a 2026 refinance in the USA. See monthly savings, lifetime interest saved and how many months to break even on closing costs.
| Output | Estimated monthly savings |
|---|---|
| Location pricing | Adjusted by state multiplier (CA 1.45, NY 1.38, TX 0.92, FL 1.05) |
| Price | Free, no sign-up |
Project details
All prices in USD $ · 2026 USA averages.
Estimated cost
Estimated monthly savings
$336
Range: $286 – $370
Refinance $320,000 from 7.5% → 6.25%
Cost breakdown
| Current monthly P&I | $2,306.35 |
| New monthly P&I | $1,970.30 |
| Monthly savings | $336.05 |
| Break-even period | 17.9 months |
| Lifetime interest saved (net of closing) | $31,951 |
What this calculator does
Runs the mortgage math — principal & interest, taxes, insurance, PMI — using 2026 average rates and your state's tax and insurance data, so the payment is realistic.
When to use it
- Comparing loan programs (30-year vs. 15-year, conventional vs. FHA).
- Testing what you can afford before house shopping.
- Deciding when to refinance.
Common mistakes
- Using the raw P&I payment instead of PITI + PMI.
- Ignoring closing costs (2–5% of loan amount).
- Locking a rate before shopping 3+ lenders.
Pro tips
- Shop rates within a 45-day window — it counts as one credit inquiry.
- 20% down avoids PMI; ~$50/month per $100K loan when required.
- Refinance if you can drop your rate 0.75% or more.
What the Refinance Calculator works out for your refinance job
Compare your current mortgage against a 2026 refinance in the USA. See monthly savings, lifetime interest saved and how many months to break even on closing costs.
Enter Current loan balance, Current interest rate, Years remaining and New interest rate and the refinance calculator returns Estimated monthly savings, Itemized cost breakdown and State-adjusted 2026 range instantly — no signup, no spreadsheet and no install. Every figure updates as you type so you can test two or three refinance scenarios before you commit to an order or a bid.
Refinance numbers this page gives you
The output is written for a real supply run: quantities and figures you can hand to a supplier or drop straight into a bid for refinance work.
- Estimated monthly savings — recalculated on every input change.
- Itemized cost breakdown — recalculated on every input change.
- State-adjusted 2026 range — recalculated on every input change.
How to estimate refinance step by step
The math behind this page is a standard trade quantity formula, printed on the page along with its assumptions so you can re-check the result by hand.
- Measure the refinance area or run and write down Current loan balance, Current interest rate, Years remaining and New interest rate.
- Enter the figures above and read the refinance result.
- Add the recommended waste allowance before you order.
- Save or download the estimate so your supplier and your crew work from the same numbers.
Refinance searches this page answers
Homeowners, DIYers and contractors reach this refinance page looking for the same handful of answers. Each of these is answered above with the formula shown:
- Refinance calculator 2026
- Refinance monthly payment estimator
- Refinance rates by state
- Free refinance calculator online
Before you lock a refinance rate: quick checklist
- Compare at least three lenders before locking a refinance rate.
- Check the full monthly figure, not just principal and interest.
- Re-run the refinance numbers with a higher rate to stress-test the payment.
More refinance planning tools
Pair this refinance estimate with the rest of BuildMate: a full calculator index, an AI planner that turns a plain-English description into a materials list, and step-by-step guides for the trade work itself.
Targeted searches: refinance calculator 2026 · refinance monthly payment estimator · refinance rates by state · free refinance calculator online
Get 3 Mortgage Quotes
Compare 3 vetted USA lenders. Free, no obligation, no impact on credit.
Disclaimer: This is a planning estimate, not a rate quote or loan offer. It uses typical published 2026 USA rate, property tax and insurance assumptions. Your actual rate, fees and payment depend on lender, credit profile, loan program and property. Confirm figures with a licensed loan officer.
Frequently asked questions
When is refinancing worth it?
A common rule: refinance when the new rate is 0.75–1.0% lower than your current rate and you'll keep the home past the break-even point.
How much are refinance closing costs?
USA 2026 average: 2–5% of the loan amount, or $4,000–$12,000 on a $300K refinance.
Should I refinance to a shorter term?
Yes if you can afford the higher payment — you'll save tens of thousands in interest and build equity faster.
How do I use the Refinance Calculator?
Enter Current loan balance, Current interest rate, Years remaining and New interest rate. The refinance calculator instantly returns Estimated monthly savings, Itemized cost breakdown and State-adjusted 2026 range, along with the formula and every calculation step so you can verify the result.
How much does refinance cost?
Refinance cost varies widely by scope, finish level and location, so use the calculator above with your state selected. It returns a 2026 low-to-high USD range that you can compare against written quotes.
What does the Refinance Calculator include in its result?
It reports Estimated monthly savings, Itemized cost breakdown and State-adjusted 2026 range. The underlying formula and assumptions are printed on this page.
Is the Refinance Calculator free, and does it work on mobile?
Yes — it's free, needs no account, and runs in the browser on phone, tablet and desktop. Nothing is installed and your saved refinance estimates stay on your own device.