Home Equity Calculator
Calculate your home equity, LTV ratio, and usable equity. Includes HELOC vs loan comparison, ways to build equity faster, and worked $450k example. Free tool.
Your home is likely your largest asset — and home equity is the portion that is truly yours. Our Home Equity Calculator shows you exactly how much equity you have built, your current loan-to-value (LTV) ratio, and how much you could potentially borrow against your home. Whether you are planning a renovation, consolidating debt, or just tracking your net worth, this tool gives you a clear financial picture in seconds. Enter your current home value and outstanding mortgage balance. Results update instantly. No personal data required.
Disclaimer: This tool provides estimates only. Lender approval depends on credit score, income, and full underwriting assessment.
Formula
Step 1 — Home Equity
Equity = Current Home Value − Outstanding Mortgage Balance
Step 2 — Loan-to-Value (LTV) Ratio
LTV = (Outstanding Mortgage Balance / Current Home Value) × 100
Step 3 — Usable Equity (at 80% LTV)
Usable Equity = (Home Value × 0.80) − Mortgage Balance
Worked Example:
- Home Value: $450,000
- Mortgage Balance: $280,000
- Equity = $450,000 − $280,000 = $170,000
- LTV = ($280,000 / $450,000) × 100 = 62.2%
- Usable Equity = ($450,000 × 0.80) − $280,000 = $80,000
Home Equity Loan vs HELOC vs Cash-Out Refinance
| Feature | Home Equity Loan | HELOC | Cash-Out Refinance |
|---|---|---|---|
| Type | Lump sum | Revolving credit line | New mortgage (replaces existing) |
| Interest Rate | Fixed | Variable (usually) | Fixed or variable |
| Repayment | Fixed monthly payments | Draw period, then repayment | New 15–30 year mortgage term |
| Closing Costs | 2–5% | 2–5% | 2–6% |
| Best For | One-time large expense | Ongoing or uncertain costs | Rate improvement plus cash need |
| Tax Deductibility (US) | Deductible if used for home improvement | Deductible if used for home improvement | Portion may be deductible |
US vs UK Terminology
In the US, equity products are called Home Equity Loans and HELOCs. In the UK, the equivalent is a "second charge mortgage" or a "further advance" from your existing mortgage lender. The underlying calculation — property value minus mortgage debt — is identical. Interest rates and maximum LTV limits differ between markets.
FAQs
How is home equity calculated?
Home equity is calculated as: Equity = Current Home Value − Outstanding Mortgage Balance. For example, if your home is worth $400,000 and you owe $250,000, your equity is $150,000. Equity grows as you pay down the mortgage and as property values increase.
What is a good amount of home equity?
Most lenders consider 20% equity (an 80% loan-to-value ratio) the benchmark. Below 20%, you may face PMI in the US or similar charges in the UK. Having 20%+ equity also qualifies you for better rates on home equity loans and HELOCs. Above 50% equity puts you in a strong borrowing position.
How much equity can I borrow against my home?
Most lenders allow you to borrow up to 80–85% of your home's value minus your existing mortgage. Formula: Usable Equity = (Home Value × 0.80) − Mortgage Balance. On a $400,000 home with $200,000 owed: ($400,000 × 0.80) − $200,000 = $120,000 available to borrow.
Does a home equity calculator account for taxes and fees?
Our calculator shows gross equity and estimated usable equity at 80% LTV. It does not include closing costs, appraisal fees, legal fees, or taxes associated with accessing equity. Always add 2–5% of the loan amount for transaction costs when budgeting a home equity product.
How does home equity differ between the US and UK?
The concept is identical — property value minus mortgage debt — but product names differ. The US uses Home Equity Loans and HELOCs. The UK equivalent is a "second charge mortgage" or "further advance" from your existing lender. LTV limits and interest rate structures also vary by country.
Home Equity by Home Value — Reference Table
The table below shows equity, LTV, and usable equity at 80% LTV across common home values, assuming a range of mortgage balances.
| Home Value | Mortgage Balance | Equity | LTV | Usable Equity (80% LTV) |
|---|---|---|---|---|
| $250,000 | $175,000 | $75,000 | 70.0% | $25,000 |
| $300,000 | $200,000 | $100,000 | 66.7% | $40,000 |
| $400,000 | $250,000 | $150,000 | 62.5% | $70,000 |
| $450,000 | $280,000 | $170,000 | 62.2% | $80,000 |
| $500,000 | $300,000 | $200,000 | 60.0% | $100,000 |
| $600,000 | $350,000 | $250,000 | 58.3% | $130,000 |
| $750,000 | $400,000 | $350,000 | 53.3% | $200,000 |
Usable Equity = (Home Value × 0.80) − Mortgage Balance. Some lenders allow up to 85% LTV.
Ways to Build Home Equity Faster
Equity grows through two mechanisms: paying down your mortgage balance and appreciation in your home's market value. You can accelerate both.
1. Make extra mortgage payments. Even one extra payment per year reduces a 30-year mortgage to approximately 25 years and saves tens of thousands in interest. Bi-weekly payments (half your monthly payment every two weeks) result in 26 half-payments — effectively 13 full payments — per year.
2. Make a larger down payment. Putting down 20% instead of 5% on a $350,000 home gives you $70,000 in equity from day one, versus $17,500. That head start also eliminates PMI and reduces the interest you pay over the life of the loan.
3. Invest in value-adding home improvements. Not all renovations build equity equally. Kitchen remodels, bathroom additions, and curb appeal improvements typically return 60–80% of their cost in home value. Pools and luxury upgrades rarely return their cost in most markets.
4. Avoid cash-out refinancing unnecessarily. Every time you access equity through a cash-out refinance, you reset your equity balance. Use cash-out refis only for improvements or debt paydowns that improve your net worth — not for lifestyle spending.
5. Make principal-only payments. Contact your lender to confirm that additional payments are applied to principal, not future interest. Most lenders allow this; it directly reduces your loan balance and builds equity faster.
Related Calculators
- Second Home Mortgage Calculator — Estimate the cost of buying a second property using your existing home equity.
- Home Equity Loan Calculator — Calculate monthly payments on a lump-sum home equity loan.
- Mortgage Refinance Calculator — Find out if a cash-out refinance makes financial sense at current rates.