LTV Calculator
Find the loan-to-value ratio on a property purchase and see where it sits against the 80% PMI threshold.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
The 80% private mortgage insurance comparison is a US conventional-loan rule of thumb, not a guarantee. Requirements depend on the loan program, lender, property, and local rules.
Worked example
calculated with the default values below
Property value 400,000 $ · First loan amount 320,000 $ · Additional secured loans 0 $ Loan-to-value ratio 80.0 % · Combined loan-to-value ratio 80.0 % · Equity in the property 80,000 $ · Equity share 20.0 % · Loan amount at 80% LTV (rule of thumb) 320,000 $ PMI usually required
General background references
Disclaimer
These calculators give estimates for general information only. They are not financial, tax or investment advice and do not take your personal circumstances into account. Before borrowing, investing or filing, confirm the numbers with a qualified adviser in your jurisdiction.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
LTV = L ÷ V × 100; CLTV = (L + A) ÷ V × 100; equity% = (V − L − A) ÷ V × 100; maxLoanNoPMI = 0.8 × V
- V
- property value
- L
- loan amount
- A
- additional loans
- LTV
- loan-to-value (%)
- CLTV
- combined LTV (%)
- equity%
- owner equity (%)
The 80% PMI comparison is a US conventional-loan rule of thumb only; actual mortgage-insurance requirements vary by loan program, lender, property, and jurisdiction.
Frequently asked questions
Does 80% LTV guarantee that PMI is not required?
No. It is a common rule of thumb for some US conventional loans, not a guarantee. Requirements depend on the loan program, lender, property and jurisdiction; confirm the terms for your loan.