HELOC Calculator
Estimate HELOC available credit, interest-only payment, amortizing payment, and utilization.
- Last reviewed
- July 8, 2026
- Cost
- Free to use
- Data
- Runs in your browser
Available Credit
Enter valid inputs
Interest-Only Payment
Enter valid inputs
Amortizing Payment
Enter valid inputs
Utilization
Enter valid inputs
Methodology
How this calculator handles inputs
This calculator uses the values you enter above and applies the formula explained in the guide below. Results update in the browser and are intended for quick planning, comparison, and sanity-checking.
- Use consistent periods, currencies, and units across inputs.
- Review any assumptions before using the result in a decision.
- Recalculate when rates, prices, tax rules, or business terms change.
Important note
This tool provides general planning information only. It is not tax, legal, financial, accounting, or investment advice. Check the current rules for your location and speak with a qualified professional before making a high-stakes decision.
Guide
How it works
Use this calculator to estimate HELOC payments and available credit.
What this calculator does
The HELOC calculator estimates available credit, interest-only payment, amortizing payment, and credit utilization.
HELOC Formula
Interest-Only Payment = Drawn Balance x Monthly Interest Rate
Example calculation
If your HELOC limit is 100,000, drawn balance is 25,000, and rate is 8%, the calculator estimates the monthly interest-only payment.
When to use this calculator
- planning home equity borrowing
- comparing HELOC repayment options
- checking available credit
- estimating payment risk if rates change
FAQs
Is a HELOC payment fixed?
Often no. HELOC rates and payments may vary.
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