Home Equity Loan Calculator
Estimate how much equity you can borrow and what the fixed monthly payment could be. This page also keeps the formula, examples, FAQs, and references close by so you can check the result with confidence.
What This Home Equity Loan Calculator Helps You Do
A common estimate is home value times 85% minus the remaining mortgage balance. Review the formula and examples below if you want to see how the result is derived.
This page is meant to give you a fast answer, but it also helps you double-check the math before you make a decision. Start with the inputs that you already know, run the calculation, and then compare the output with the formula, examples, and FAQs below so you can see whether the answer fits the situation you are modeling.
If the result looks off, the usual causes are a unit mismatch, a missing decimal, the wrong scenario, or a value that needs to be entered as a rate instead of a total. The notes on this page are designed to make those checks easy without forcing you to leave the calculator and search for context elsewhere.
- Use the calculator first for a quick estimate.
- Use the formula to understand how the result is built.
- Use the examples to compare common use cases.
- Use the references when the answer depends on a standard or assumption.
Common Checks
A quick result is useful, but the best result is one that still makes sense when you look at it a second time. If you are comparing scenarios, try changing one input at a time so you can see which variable has the biggest impact on the final answer. That makes it much easier to spot whether the calculation matches your expectations.
It also helps to keep the context of the problem in mind. A calculator can tell you the math, but you still need to decide whether the input represents a total, a rate, an average, or a category-specific assumption. When in doubt, start with a simple example from the page and scale up from there.
- Check that every unit matches the rest of the problem.
- Keep rates, totals, and averages separate.
- Adjust one variable at a time when testing scenarios.
- Use the smallest realistic input first, then scale upward.
Scenario Planning
This calculator is especially useful when you want a quick answer before you commit time, money, or effort. Try one baseline input set, then change a single number and compare the result so you can see how sensitive the answer is to that variable.
That makes the page useful for more than just arithmetic. It becomes a small decision aid that helps you compare options, test assumptions, and explain the final number with confidence when you need to share it with someone else.
Result
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How to Calculate Home Equity Loan Calculator
- Enter your home value: Use the estimated market value of the home.
- Add the mortgage balance: Type the amount still owed on the first mortgage.
- Set loan terms: Choose the borrowing limit, rate, and repayment term.
- Review the payment: The calculator shows the maximum loan amount and estimated monthly payment.
Home Equity Loan Calculator Formula
| Variable | Meaning | Unit |
|---|---|---|
| home value | Market value of the home | $ |
| borrowing limit | Lender borrowing limit, often 85% | % |
| mortgage balance | Amount still owed on the mortgage | $ |
Worked Examples
- Home value: $400,000
- Mortgage balance: $250,000
- Borrowing limit: 85%
- Interest rate: 7.5%
- Loan term: 20 years
Result: Maximum loan amount = $90,000
That is the amount left after applying the 85% borrowing limit.
- Home value: $500,000
- Mortgage balance: $300,000
- Borrowing limit: 85%
Result: Maximum loan amount = $125,000
More equity gives you more borrowing room.
- Home value: $600,000
- Mortgage balance: $350,000
- Borrowing limit: 85%
Result: Maximum loan amount = $160,000
A lower balance leaves more available equity to borrow.
- Home value: $750,000
- Mortgage balance: $400,000
- Borrowing limit: 85%
Result: Maximum loan amount = $237,500
A larger property can support a larger fixed-rate equity loan.
Home Equity Loan Reference Chart
Higher home equity or a lower mortgage balance increases the available borrowing room.
| Range | Meaning | Action |
|---|---|---|
| Low equity | Borrowing room is limited | Consider paying down the mortgage first. |
| Moderate equity | Enough room for a mid-sized loan | Compare rates and closing costs. |
| High equity | A larger loan may be available | Check whether the payment fits your budget. |
| Home value | Mortgage balance | Borrowing limit | Max loan |
|---|---|---|---|
| $400,000 | $250,000 | 85% | $90,000 |
| $500,000 | $300,000 | 85% | $125,000 |
| $600,000 | $350,000 | 85% | $160,000 |
| $750,000 | $400,000 | 85% | $237,500 |
Frequently Asked Questions
References
Last reviewed: March 30, 2026