Quick answer
How do you calculate Loan-to-Value Ratio?
Use Loan-to-value ratio = Loan balance / Property value x 100. Enter the matching values above to calculate the result instantly.
What it measures
Understanding Loan-to-Value Ratio
Calculate mortgage loan-to-value ratio, estimated owner equity, and the equity percentage from balance and property value. LTV compares secured debt with property value and is widely used in mortgage pricing, underwriting, refinance, and mortgage-insurance decisions. The ratio can fall through principal repayment or rising value and can rise if property value declines or additional secured debt is added.
Interpretation
What the result means
An 80% LTV means the loan balance equals 80% of the entered property value. Estimated equity is the arithmetic difference, not guaranteed sale proceeds.
Action
How to use it
Use the value definition required for the decision and include all relevant liens when a combined LTV is needed. Obtain a current appraisal or lender-approved valuation for an actual transaction.
Limits
What it leaves out
This estimate excludes selling costs, taxes, other liens unless included, valuation uncertainty, program-specific LTV definitions, and lender adjustments. A negative equity result can occur when debt exceeds value.
The math
Loan-to-Value Ratio formula
Worked example
Example calculation
- Calculation
- $360,000 / $450,000 x 100
- Result
- 80% LTV and $90,000 of estimated equity
Step by step
How to use this calculator
- 1Enter loan balance, property value.
- 2Keep every input on the same time period and measurement basis.
- 3Review the result, then change one assumption at a time to test scenarios.
Decision support
When this calculator is useful
- Mortgage planning
- Refinance preparation
- Tracking home equity
Common questions
Frequently asked questions
Which inputs should I use for Loan-to-Value Ratio?
Use loan balance, property value, measured from the same source and period. Include only values that match the definitions shown beside each field.
Why might two Loan-to-Value Ratio calculations differ?
The systems or accounting policies may define loan balance, property value differently. Compare the time period, scope, source, and treatment of exceptional items before comparing results.
How often should I recalculate Loan-to-Value Ratio?
Recalculate when any input changes materially and on the same reporting cadence used for the decision. Save the source and date of each input so the trend remains comparable.
Can I use Loan-to-Value Ratio by itself?
No single metric captures the full decision. Use the result with the related measures, assumptions, and limitations shown on this page.
Calculation reviewed: 2026-06-18. CalcPilot uses the formula shown above and tests representative values during the production build. See our methodology and correction policy.
Browse by topic
Calculator categories
Connected decisions
See how this metric fits the system
Keep exploring
Related calculators
Down Payment Calculator
Convert a down-payment percentage into cash required, estimated mortgage amount, and starting loan-to-value ratio.
Calculate nowMortgage Calculator
Estimate a monthly mortgage payment including principal, interest, property tax, home insurance, and HOA dues.
Calculate nowMortgage Refinance Calculator
Compare current and proposed mortgage payments, closing-cost break-even time, and projected remaining interest.
Calculate nowHome Affordability Calculator
Estimate a home-price ceiling from income, monthly debts, down payment, mortgage terms, taxes, insurance, and a chosen debt-to-income limit.
Calculate nowDebt-to-Income Ratio Calculator
Calculate monthly debt payments as a percentage of gross monthly income.
Calculate now