Home Equity Calculator

How it works

Home equity is the part of the house that belongs to you rather than the bank. It is simply what the home is worth today minus whatever you still owe on it:

With the defaults, a $450,000 home with $280,000 still owed leaves $170,000 in equity, which is about 37.8% of the value. Equity grows two ways at once: every payment chips at the balance, and any rise in the home's value lifts the number without you doing a thing. It is the wealth you can eventually borrow against or walk away with when you sell.

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A worked example: a $450,000 home, $280,000 owed

Picture a homeowner whose place would sell for $450,000 today, with $280,000 still owed on the mortgage. Subtract one from the other and their home equity comes to $170,000.

That number is the slice of the house they truly own. On this $450,000 property, the $280,000 balance still belongs to the lender, and the remaining $170,000 is theirs to keep. Put another way, it is about 37.8% of the home value owned free and clear.

Equity climbs as the mortgage balance shrinks and as the home value rises, so this figure is a moving target you can check any time. Enter your own value and balance to see where you stand today.

What your equity is good for

• A cushion when you sell. Equity is what lands in your pocket after the loan is paid off, minus selling costs. It usually becomes the down payment on the next place.
• Borrowing power. A home equity loan or line of credit lets you borrow against it, often at lower rates than unsecured debt, though you are putting the house up as collateral.
• Dropping PMI. Once your equity reaches 20% of the value, you can usually ask the lender to cancel private mortgage insurance and shrink the monthly payment.

Pinning down the value that drives it

Your equity is only as honest as the value you plug in, and that top number is the hardest part to get right. The balance you owe is a fact on your statement, but the home’s worth is an estimate until someone actually buys it. Lean conservative, and cross-check more than one source.

• Recent comparable sales. What similar homes nearby actually sold for in the last few months is the closest thing to ground truth, better than any listing price.
• A professional appraisal. The most reliable figure, and the one a lender will use anyway if you refinance or borrow against the house.
• Online value estimates. Fine as a rough starting point, but they can miss condition and renovations, so treat them as a range rather than a number.
• Your tax assessment. Handy but often stale or set for tax purposes, so it rarely matches a real sale price closely.

How equity builds over the life of a loan

Equity grows on two tracks: the balance you pay down and the value that rises underneath it. What surprises many owners is how slow the paydown feels at the start. Early mortgage payments are mostly interest, so principal barely moves in the first few years, and the equity you gain early comes largely from appreciation rather than the loan shrinking.

That balance flips over time. As the loan matures, more of each payment attacks principal, and equity from paydown accelerates in the back half of the term. It’s why a 15-year loan builds ownership so much faster than a 30-year one: the shorter schedule forces principal down from the very first payment.

If you want to speed things up without refinancing, extra principal payments go straight to equity, since there’s no interest riding on money you’ve already knocked off the balance.

Turning equity into cash, and the tradeoffs

Equity is real wealth, but it’s locked in the walls until you do something to free it. Each way of tapping it trades access to cash for a new obligation against the house, so it pays to know how they differ before you sign.

• Home equity loan. A lump sum at a fixed rate, repaid on a set schedule. Good when you know the exact amount you need, like a defined renovation.
• Home equity line of credit. A revolving line you draw from as needed, usually at a variable rate. Flexible, but the payment can climb if rates rise.
• Cash-out refinance. Replaces your whole mortgage with a bigger one and hands you the difference. It can reset you to a higher rate, so it fits best when rates have fallen.
• The shared risk. All three put the home up as collateral, so borrowing against equity you didn’t earn in cash raises the stakes if money gets tight.

Equity you can actually borrow against

The equity figure here is your total ownership stake, but lenders won’t let you borrow all of it. They keep a buffer, so the amount you can tap is smaller than the number on the screen.

• Lenders cap combined borrowing. Most limit your first mortgage plus any equity loan to somewhere around 80% to 90% of the value, leaving a slice untouchable.
• Usable equity is the gap. Take that cap, subtract what you still owe, and the difference is roughly what you could actually access.
• A cushion protects you too. Leaving equity in place guards against a price dip pushing you underwater, so borrowing right to the limit is rarely wise.