Loan-to-Value (LTV) Calculator
How much of your home’s value you owe, and how far you are from 80%.
Good to know. At 80% loan-to-value, mortgage insurance can come off. Paying down and rising prices both get you there.
Not financial advice. Uses only the numbers and rates you enter — no live data.
How it works
In plain words
Divide what you owe on the mortgage by the home’s value. The combined LTV adds any other loans secured on the home. To reach 80%, the balance has to fall to 80% of the value.
The formula
LTV = mortgage balance ÷ value CLTV = all loans on the home ÷ value to reach 80% = balance − 0.8 × value
Worked example
Owing 300,000 on a 400,000 home: 300,000 ÷ 400,000 = 75%, with 100,000 of equity, already under the 80% line.
Sources
- Homeowners Protection Act of 1998 PMI can be cancelled on request at 80% of the original value and ends automatically at 78%.
Sources checked October 3, 2026. 3 automated tests check its answers on every change.
About the loan-to-value (LTV) calculator
Loan-to-value (LTV) compares what you owe on a home with what it is worth. Lenders use it to price risk: the lower your LTV, the more of the home is yours and the better the terms you are offered.
The most important line is 80%. Below it, a conventional mortgage needs no private mortgage insurance (PMI). If you put less than 20% down, US law lets you ask for PMI to be cancelled once the balance reaches 80% of the original value, and it ends automatically at 78%. Some lenders will also remove it based on a new appraisal if the home has risen in value.
Combined LTV (CLTV) adds a home equity loan or line of credit. Lenders typically cap it, often at 80–90%, which sets how much you can borrow against your home.
Equity is the other side of the same number: value minus everything owed. The home equity calculator shows how much of it you could borrow, and the refinance calculator whether a new loan at a lower LTV would pay off.
Questions people ask
How do I calculate LTV?
Divide the mortgage balance by the home’s value. Owing 300,000 on a 400,000 home is 75%.
What LTV do I need to remove PMI?
You can request cancellation at 80% of the original value; it ends automatically at 78%, if your payments are current.
What is combined LTV?
All loans secured on the home, including a home equity loan or line, divided by its value.