Loan-to-Value (LTV) Ratio Calculator
Use this calculator to estimate your mortgage loan-to-value ratio, equity percentage, and whether you may need private mortgage insurance (PMI).
Educational use only. Lender rules vary by loan program, credit score, and occupancy type.
What is the LTV ratio?
The loan-to-value ratio (LTV) compares your loan amount to the market value (or purchase price) of a property. It is one of the most important numbers in mortgage lending because it helps lenders estimate risk.
Formula: LTV = (Loan Amount ÷ Property Value) × 100
Quick example
If you borrow $300,000 on a home worth $375,000:
LTV = (300,000 ÷ 375,000) × 100 = 80%.
Why LTV matters for mortgage approval
- Interest rate: Lower LTV often means better pricing and lower rates.
- PMI requirement: Conventional loans above 80% LTV often require private mortgage insurance.
- Loan eligibility: Different programs have different max LTV limits.
- Refinance options: A lower LTV can expand refinance choices and reduce costs.
Typical LTV ranges and what they mean
- 0% to 60%: Very strong equity position, usually low lender risk.
- 61% to 80%: Common and generally favorable for conventional financing.
- 81% to 90%: Higher leverage; may increase insurance/costs.
- 91% to 100%: High-risk zone; fewer lending options and tighter underwriting.
- Over 100%: Loan balance exceeds property value (negative equity).
LTV vs. CLTV: what's the difference?
LTV uses only your first mortgage balance. Combined LTV (CLTV) includes all loans secured by the property (first mortgage + second mortgage + HELOC). If you have multiple liens, lenders may focus on CLTV when assessing risk.
How to improve your LTV ratio
1) Increase your down payment
A larger down payment lowers your starting loan balance and can move you under key thresholds like 80%.
2) Pay down principal faster
Extra principal payments reduce the numerator in the LTV formula and build equity sooner.
3) Improve property value
Renovations and strong local market appreciation can increase appraised value, lowering LTV.
4) Refinance when conditions improve
If home values rise or your balance drops, refinancing may help you secure better terms and potentially remove mortgage insurance.
Common mistakes to avoid
- Using estimated value that is far above likely appraisal value.
- Ignoring closing costs when planning cash needed at closing.
- Confusing LTV with debt-to-income ratio (DTI)—they measure different risks.
- Assuming all lenders use identical cutoff points for mortgage insurance and pricing.
Bottom line
Your LTV ratio is a core mortgage metric that affects approval odds, insurance requirements, and loan pricing. Use the calculator above to estimate where you stand, then compare loan options with your lender or broker.