HELOC Calculator
Calculate your home equity line of credit (HELOC) options. Estimate borrowing power, monthly payments, and interest costs.
Typically 80-85%
📊 Equity Breakdown
💰 Total Interest Cost
| Repayment Term | Monthly Payment | Total Interest | Total Cost |
|---|---|---|---|
| 5 Years | $ | $ | $ |
| 10 Years | $ | $ | $ |
| 15 Years | $ | $ | $ |
| 20 Years | $ | $ | $ |
About HELOC Calculator
Enter your home's value, mortgage balance, the lender's LTV cap (usually 80 to 85%) and a rate, and this HELOC calculator returns the maximum credit line you could draw: home value times LTV, minus what you still owe. It also shows current equity in dollars and percent, the interest-only payment during the draw period, and monthly payments and total interest for 5, 10, 15 and 20-year repayment terms, with a bar splitting home value into mortgage, credit line and remaining equity. The math runs in the browser.
Use Cases
How to use
Enter your Home Value and the Mortgage Balance you still owe on the property.
Set the LTV Limit your lender allows, typically 80 to 85 percent, and the HELOC Interest Rate.
Read the Maximum HELOC Amount headline plus your Current Equity in dollars and your Equity Percentage.
Type an Amount to Borrow or drag the slider underneath it, which is capped at your maximum HELOC amount.
Compare the Interest Only Payment, 10-Year Repayment and 20-Year Repayment monthly figures.
Use the Equity Breakdown bars to see mortgage, HELOC and remaining equity, then the Total Interest Cost table for payments over 5, 10, 15 and 20 years.
Pro Tips
- Enter your values carefully — small differences in inputs can lead to large changes in the HELOC Calculator result, especially for long time periods.
- Use the HELOC Calculator to compare multiple scenarios side by side. Open the tool in several tabs to see how different assumptions impact your outcome.
- Bookmark this HELOC Calculator and return whenever your situation changes — small updates in income, rates, or expenses are easy to recompute.
- Export or copy the result before closing the tab. Since the HELOC Calculator stores no data server-side, your inputs reset when you navigate away.
- Combine this HELOC Calculator with our other financial tools (loan, tax, budget calculators) for a more complete financial picture.
Frequently Asked Questions
Yes. The HELOC Calculator is 100% free, with no signup, no paywall, no limits, and no watermarks on results. You can use it as often as you need.
No. The HELOC Calculator runs entirely in your browser. Your inputs stay on your device and are never transmitted to our servers, guaranteeing privacy.
The HELOC Calculator uses industry-standard formulas and returns mathematically precise results based on the inputs you provide. Always verify with a professional advisor for major decisions.
Yes. The HELOC Calculator is fully responsive and works on iOS, Android, and all modern mobile browsers with no app install required.
After the initial page load, most calculations run offline because the logic runs in JavaScript on your device. If you lose connection mid-session, you can usually keep calculating.
While the HELOC Calculator provides accurate computations, it does not replace professional advice. For tax, legal, medical, or major investment decisions, consult a certified advisor.