HELOC Calculator USA 2026
Estimate your 2026 Home Equity Line of Credit — available credit, draw amount and interest-only monthly payment based on home value and mortgage balance.
HELOC Calculator USA 2026 — the quick answer
Estimate your 2026 Home Equity Line of Credit — available credit, draw amount and interest-only monthly payment based on home value and mortgage balance.
| Output | Available credit line |
|---|---|
| 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
Available credit line
$217,500
Range: $195,750 – $217,500
85% combined LTV on $550,000 home
Cost breakdown
| Current home equity | $300,000 |
| Max combined loan (home value × LTV) | $467,500 |
| Available HELOC credit | $217,500 |
| Planned draw amount | $50,000 |
| Interest-only monthly payment | $354.17 |
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 HELOC Calculator works out for your heloc job
Estimate your 2026 Home Equity Line of Credit — available credit, draw amount and interest-only monthly payment based on home value and mortgage balance.
Enter Current home value, Current mortgage balance, Max combined LTV and HELOC interest rate and the heloc calculator returns Available credit line, 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 heloc scenarios before you commit to an order or a bid.
Heloc 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 heloc work.
- Available credit line — 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 heloc 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 heloc area or run and write down Current home value, Current mortgage balance, Max combined LTV and HELOC interest rate.
- Enter the figures above and read the heloc 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.
Heloc searches this page answers
Homeowners, DIYers and contractors reach this heloc page looking for the same handful of answers. Each of these is answered above with the formula shown:
- Heloc calculator 2026
- Heloc monthly payment estimator
- Heloc rates by state
- Free heloc calculator online
Before you lock a heloc rate: quick checklist
- Compare at least three lenders before locking a heloc rate.
- Check the full monthly figure, not just principal and interest.
- Re-run the heloc numbers with a higher rate to stress-test the payment.
More heloc planning tools
Pair this heloc 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: heloc calculator 2026 · heloc monthly payment estimator · heloc rates by state · free heloc 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
How does a HELOC differ from a home equity loan?
A HELOC is a revolving credit line with variable rates. A home equity loan is a lump-sum second mortgage with a fixed rate.
What credit score do I need?
Most 2026 HELOC lenders require a 680+ FICO. Best rates go to borrowers with 740+ and under 80% combined LTV.
Can I lose my home?
Yes. A HELOC is secured by your home. Missing payments can trigger foreclosure, so treat it like a mortgage.
How do I use the HELOC Calculator?
Enter Current home value, Current mortgage balance, Max combined LTV and HELOC interest rate. The heloc calculator instantly returns Available credit line, 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 heloc cost?
Heloc 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 HELOC Calculator include in its result?
It reports Available credit line, Itemized cost breakdown and State-adjusted 2026 range. The underlying formula and assumptions are printed on this page.
Is the HELOC 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 heloc estimates stay on your own device.