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🏡 HELOC Calculator

A HELOC calculator shows how large a home equity line of credit you could qualify for. Enter your home value, remaining mortgage balance, and your lender's combined loan-to-value cap to see your available equity, current LTV, and estimated maximum credit line before you apply.

🇺🇸 Calculating for United States
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Home equity details

Maximum HELOC line you could qualify for

$145,000.00

At 85% combined loan-to-value on a $500,000.00 home

Your home equity

$220,000.00

Current LTV

56%

Equity used at max line

65.91%

Lenders cap total borrowing (mortgage + HELOC) at a percentage of your home's value — the combined loan-to-value (CLTV) ratio. Most allow 80–85%; some credit unions go to 90%. Actual approval also depends on credit score, income, and debt-to-income ratio. Your home secures the line: missed payments risk foreclosure.

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Frequently asked questions

How much HELOC can I get?
Most lenders cap total borrowing (first mortgage + HELOC) at 80–85% of your home's value — the combined loan-to-value (CLTV) ratio. On a $500,000 home with a $280,000 mortgage, an 85% CLTV allows a line up to $145,000. Credit score, income, and DTI also affect approval.
What is CLTV and why does it matter for a HELOC?
Combined loan-to-value is all debt secured by your home divided by its value. Lenders use it as their primary risk cap for HELOCs. A lower CLTV also tends to earn better rates — lines below 80% CLTV are priced more favorably than 90% CLTV lines.
Is a HELOC a good idea?
HELOCs suit flexible, staged borrowing — renovations, tuition, or an emergency backstop — at rates far below credit cards. The risks: variable rates can rise, and your home is collateral, so missed payments can lead to foreclosure. Avoid using one for consumable spending.
HELOC vs home equity loan — what is the difference?
A HELOC is a revolving line with variable rates — draw what you need, when you need it. A home equity loan is a lump sum at a fixed rate with immediate fixed payments. Choose the line for staged expenses, the loan for one-time known costs.

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Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and not financial advice. Consult a licensed financial advisor before making financial decisions.