HELOC Calculator
Available equity = Home value × 0.85 − Outstanding mortgage; HELOC max = min(Available equity, Credit line)Equity=400000×0.85−200000=$140,000; available from HELOC=min(140000,100000)=$100,000
Free online tool
HELOC Calculator
Enter your home value, mortgage balance and credit line details.
Instant calculation
HELOC Calculator
Enter your home value, mortgage balance and credit line details.
Your result
Calculation
Your numbers stay in this browser. Nothing is uploaded or saved.
Three clear steps
How to use this calculator
- 01
Enter home value
Type the current market value of your home.
- 02
Enter mortgage balance
Type your remaining mortgage balance.
- 03
Enter HELOC details
Provide the credit line amount, interest rate and draw period.
The formula
How this calculation works
Lenders typically allow borrowing up to 85% of home value minus existing mortgage balance.
Check the method
Worked examples
Each example follows the same formula used by the calculator.
Home $400,000, mortgage $200,000, credit line $100,000, 7% rate — available?
Equity=400000×0.85−200000=$140,000; available from HELOC=min(140000,100000)=$100,000$100,000 available; ~$583/month interest-only at 7%Common questions
Questions about this calculation
What is the HELOC Calculator?
The HELOC Calculator helps you calculate available home equity and HELOC borrowing power. Enter your values and select Calculate to get an instant result.
How is the result calculated?
Lenders typically allow borrowing up to 85% of home value minus existing mortgage balance.
Can you show an example?
Example: Home $400,000, mortgage $200,000, credit line $100,000, 7% rate — available? — $100,000 available; ~$583/month interest-only at 7%.
Is my data saved when I use the HELOC Calculator?
No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.
Is the HELOC Calculator free to use?
Yes. The HELOC Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.
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