Last reviewed by Toollabz editorial ·
Computes max borrow at 85% combined LTV minus mortgage, approves the lesser of that and your request, then amortizes. Not a lender offer.
Quick answer: Home Equity Loan Calculator
Eighty-five percent of appraised value minus mortgage balance caps borrowing; we amortize the lesser of that cap and your request at the rate you type.
Example: Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
Calculations follow the documented formula on this page; rounding and input units can change the last digit-treat outputs as educational estimates unless you reconcile with source systems.
* This is an estimate. Actual amounts may vary slightly based on input assumptions.
HELOC draw periods, IO windows, and risk-based pricing spreads are not modeled-this is closed-end second-lien style math.
Computes max borrow at 85% combined LTV minus mortgage, approves the lesser of that and your request, then amortizes. Not a lender offer.
Inputs on this page: Home value ($), Current mortgage balance ($), Desired loan ($), Annual interest rate (%). Assumptions stay visible so you can reproduce the figure elsewhere.
Long-form walkthroughs that pair well with this calculator. When you need narrative context beyond the live fields, start here and return to the tool to plug in your own numbers.
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Continue in the Finance category hub, the Finance tools collection, or the glossary. Related calculators in this session: Loan Calculator, Mortgage Affordability Calculator USA, Rent vs Buy Calculator USA, Mortgage Payment Calculator, Refinance Break-Even Calculator, EMI Calculator.
The Formula
Max borrow = min(request, 0.85×home − mortgage); payment = amortize approved principal| This tool | Max borrow = min(request, 0.85×home − mortgage); payment = amortize approved principal |
|---|---|
| Related intent: home equity loan calculator | See paired tools for home equity loan calculator-each page documents its own core relationship next to the live form. |
| Related intent: HELOC calculator | See paired tools for HELOC calculator-each page documents its own core relationship next to the live form. |
Core relationship for Home Equity Loan Calculator:
Max borrow = min(request, 0.85×home − mortgage); payment = amortize approved principal
Worked check: Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
Keep the same assumptions and open a neighbor calculator when your question branches: Loan Calculator, Mortgage Affordability Calculator USA, Rent vs Buy Calculator USA, Mortgage Payment Calculator. Each page documents its own formula beside the fields.
Learning links: Methodology · Editorial policy · Glossary
Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
Re-enter the same numbers in the calculator above to confirm the page math matches the interactive result.
People who care about home equity loan calculator use Home Equity Loan Calculator as a planning sandbox: Texas homestead rules famously differ; local counsel matters.
Instant response
Run Home Equity Loan Calculator in the browser and read the breakdown beside the form.
Transparent formula
The formula and worked example on this page match what the calculator uses.
Privacy friendly
No account required; inputs stay in your session unless you choose to share them.
Cross-device ready
Layout works on mobile, tablet, and desktop for the same field labels.
Official references for context. Calculator outputs are planning estimates—confirm material decisions with the primary authority or a qualified professional. See our methodology and editorial policy.
Reviewed July 18, 2026 · Content stamp 2026-07-18
Click a question to expand the answer.
No. Lenders use different caps and credit overlays.
This models fully amortizing payment only.
Value is your input, not an appraisal.
Not deducted from proceeds here.
Single fixed rate assumption.
Depends on use of funds and current law-consult a tax pro.
Eighty-five percent of appraised value minus mortgage balance caps borrowing; we amortize the lesser of that cap and your request at the rate you type.
Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
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Reviewed by Toollabz Editorial
Finance & tools editor | Last reviewed July 18, 2026
See methodology and editorial policy.