Real Estate Investing

Loan-to-Value Calculator

Free loan-to-value calculator: check LTV and CLTV on any property, see your equity at a glance, and get the 80% PMI threshold, the automatic 78% cut-off month and estimated mortgage insurance cost.

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What is Loan-to-Value Calculator?

Loan-to-value ratio compares what you owe on a property with what it is worth: the loan balance divided by the value, expressed as a percentage. On a 400,000 home with a 320,000 balance the LTV is exactly 80.000%, and the 80,000 difference is your equity — 20% of the asset. Lenders read the number as risk: the higher the share of the asset financed, the more of a cushion a default would have to eat through before they recover. That is why LTV sets your mortgage-insurance obligation, your pricing tier and, in many cases, whether the loan is approved at all. This calculator runs three related views. The LTV mode solves a single lien and adds a goal solver — the largest loan that still lands on your target ratio, the down payment that gets you there, and the gap if you are over. The CLTV mode stacks the first mortgage with up to two junior liens, the combined picture behind every home equity decision. The PMI mode takes the origination ratio and lays out the exact months mortgage insurance starts and stops under US conventional rules.

When to Use This Calculator

  • When you are deciding between a 5%, 10% and 20% down payment and want the mortgage-insurance consequence of each spelled out.
  • Before signing a HELOC or second-mortgage offer, to see the combined ratio the package will carry.
  • When your servicer's escrow analysis mentions PMI and you want an independent month when it should stop.
  • While shopping refinance quotes, to know your maximum new loan before a lender names their number.
  • If home prices in your area have fallen and you suspect the LTV drifted above a threshold.
  • When you are planning a sale or a cash-out and need the equity share you would actually realise.

Steps:

  1. Enter the property value the lender will appraise — every threshold in the calculator is measured against this original number.
  2. In LTV mode enter the single loan balance; the ratio, equity and equity share update together.
  3. Set the target LTV — 80% is the conventional PMI line — to see the largest loan the target allows and the gap you still need to close.
  4. Switch to CLTV mode to add the first lien with its rate and term, then stack a HELOC or second mortgage as the junior lien.
  5. Read first-lien LTV and CLTV side by side: the first lien can sit at 70% while the package is already at 85%.
  6. Open the PMI tab, add the note rate, the term in months and the annual PMI premium you were quoted.
  7. The schedule shows the request floor month — when the balance first touches 80% of the original value — and the automatic cut-off month at 78%.
  8. Compare the two premium totals, then use the sensitivity grid to see how a different rate or appraised value moves the cut-off.

Formula

LTV = (Loan ÷ Value) × 100 CLTV = (First lien + Junior liens) × 100 ÷ Value Equity = Value − Total debt Payment: M = P × i ÷ (1 − (1 + i)^−n), where i = annual rate ÷ 12 and n = months Balance after m months: B(m) = P × (1 + i)^m − M × ((1 + i)^m − 1) ÷ i Monthly PMI = Opening balance × annual premium ÷ 12 Automatic cut-off: first month with B(m) ≤ 0.78 × original value Request floor: first month with B(m) ≤ 0.80 × original value

Use Cases

  • You are comparing two purchase offers and want to know which down payment clears mortgage insurance fastest.
  • A lender quoted a HELOC and you need the combined LTV before deciding whether to draw on it.
  • You hit 80% LTV and want the exact month to send a cancellation request rather than waiting for the servicer.
  • A cash-out refinance quote is on the table and you need the LTV ceiling for your loan type before calling back.
  • Home prices dipped and you want to see how close the balance is to the 78% automatic cut-off at the original value.
  • You are planning a sale in three years and need the equity share you would actually walk away with.

Key Benefits

  • Three purpose-built modes — single lien, stacked liens and the PMI schedule — instead of one ratio box with missing context.
  • The exact request-floor and automatic cut-off months, not a vague 'roughly eight years' answer, so you know when to act.
  • A goal solver that answers the reverse question: the largest loan your target ratio allows and the gap you must close to get there.
  • Per-lien payments and shares in the CLTV table, so you can see which balance is actually driving the combined ratio.
  • Sensitivity grids that re-run the whole schedule across appraised values, loan sizes and note rates without touching the inputs.
  • Full export, print report and step-by-step arithmetic — every displayed figure can be traced back to a formula on the page.

Pro Tips

  • Diarise the month you cross 80% and send the cancellation request then — waiting for the automatic 78% cut-off costs about 1,843.65 on the default example.
  • One extra principal payment early in the schedule pulls month 112 forward: the cut-off depends on balance, not on the calendar date.
  • Twenty percent down still beats everything else — it starts you at 80% and no mortgage insurance is ever charged.
  • Run CLTV before opening a HELOC. The combined ratio is what governs the line, not the first mortgage in isolation.
  • Use the target-LTV solver before calling a refinance lender, so you already know the maximum new loan your equity supports.
  • The 0.5% premium default is a best-case quote. A lower credit score can double it — plug your real number into the premium field.

Common Mistakes to Avoid

  • Measuring the 78% cut-off against today's market value. The law uses the ORIGINAL value at origination, so a rising price does not end PMI sooner.
  • Checking only the first lien. Lenders qualify on CLTV, so a clean 70% first mortgage plus a drawn HELOC can still sit above the line.
  • Treating 80% as the automatic end date. 80% is the point where you may REQUEST removal; the automatic end is 78% on the original amortisation.
  • Applying conventional logic to FHA. FHA premiums run 11 years with at least 10% down and for the life of the loan below that.
  • Comparing loans by the monthly payment alone. Two quotes with the same payment can sit several LTV points apart once fees and junior liens are stacked.
  • Forgetting the premium inside the payment. A 150.00 first-month PMI is real money and should sit next to principal and interest when you budget.

Key Terms Explained

Loan-to-value ratio:
loan balance divided by property value, times 100. The single number that drives mortgage-insurance obligations and pricing tiers.
Combined LTV (CLTV):
every secured balance — first lien plus juniors — divided by the value. What lenders actually qualify on for HELOCs and cash-out loans.
Private mortgage insurance:
monthly insurance protecting the lender, not you, required on new conventional loans above 80% LTV.
Equity:
value minus total debt. Shown here in both currency and as a share of the value so a price dip can be judged instantly.
Homeowners Protection Act:
the federal law behind the 78% automatic termination and the 80% borrower-request right on conventional loans.
Request floor:
the first month the balance sits at or below 80% of the original value — the earliest point a cancellation request can take effect.
Automatic cut-off:
the first month the balance sits at or below 78% of the original value, when PMI ends without any request.
Amortisation schedule:
the fixed month-by-month balance path the cut-offs are measured on; a shorter term or extra principal moves both earlier.

Related Concepts

Example

Start from the Standard preset: a 400,000 property with a 320,000 loan gives LTV = 320,000 ÷ 400,000 × 100 = 80.000% and equity of 80,000, exactly 20% of the value. The target solver confirms the same numbers the other way around: at an 80% target the largest loan is 400,000 × 0.80 = 320,000, so the gap over target is zero. Now switch to the PMI preset: 400,000 with 360,000 borrowed is 90% LTV, equity drops to 40,000, and mortgage insurance is required. At a 0.5% annual premium the first month costs 360,000 × 0.005 ÷ 12 = 150.00. Following the amortisation schedule at 6.75% over 360 months, the balance first touches the 80% request floor of 320,000 at month 98 with a balance of 319,623.85, and the 78% automatic line of 312,000 at month 112 with a balance of 311,823.69 — an LTV of 77.96%. Total premium to the automatic cut-off is 15,802.85, against 13,959.20 if the servicer stops it at your 80% request: asking at 98 instead of waiting for 112 keeps 1,843.65 in your pocket. In the HELOC preset the first lien of 280,000 is 70% LTV on its own, the 60,000 junior adds 15 points, and the package lands at 85% CLTV with 60,000 of equity.

Interpreting Your Results

Read the page in this order. Start with the hero: the headline ratio is colour-coded — green at or below 80%, blue through the PMI band, amber above 97%, red past 100%. The four cards under it give the currency equity, the equity share, and in goal mode the maximum loan and remaining gap. The breakdown block restates every input against every output, so a wrong field is visible immediately. In CLTV mode the lien table shows which balance drives the combined ratio; in PMI mode the yearly schedule shows the balance, equity and running premium, with the year the cut-off lands highlighted in green. The sensitivity grid answers 'what if' without disturbing your inputs, and the step-by-step section shows the arithmetic behind every figure. Treat the amber advisory box as a decision prompt, not an error — it appears whenever the ratio crosses a policy line.

Frequently Asked Questions

What is loan-to-value ratio (LTV)?
Loan-to-value ratio is the share of a property's value that you owe. Divide the loan balance by the value and multiply by 100: on the default preset here, a 320,000 loan against a 400,000 property is 320,000 ÷ 400,000 × 100 = 80.000%. The other side of the same number is equity — 400,000 minus 320,000 leaves 80,000, or 20% of the asset. Lenders treat LTV as the primary risk dial: the more of the asset financed, the smaller the cushion between a default and their loss, so LTV determines whether mortgage insurance is required, which pricing tier you land in, and how much equity you can ever borrow against. It is not a credit score and it does not look at your income — it is strictly a balance-versus-value measurement, recomputed every time one of the two sides moves.
What is the difference between LTV and CLTV?
LTV counts one lien against the value; CLTV — combined loan-to-value — counts every secured balance stacked on the same property. Take the HELOC preset: the first mortgage of 280,000 on a 400,000 property is 70% LTV on its own, comfortably below the 80% line. Add the 60,000 junior lien and total debt becomes 340,000, which is 340,000 ÷ 400,000 × 100 = 85.000% CLTV, with equity down to 60,000 (15% of the value). The distinction matters because mortgage insurance on a new first mortgage keys off the first lien, while HELOC approvals, cash-out refinances and portfolio products qualify on the combined package. A borrower can hold a clean first lien and still be declined a second line purely because the CLTV crosses the program ceiling — which is exactly the number the CLTV mode of this calculator surfaces.
When is private mortgage insurance (PMI) required?
On a new conventional loan, PMI is required whenever the origination LTV is strictly above 80%. The threshold sits on the loan amount at closing: put 80,000 down on a 400,000 home and you borrow 320,000, which is exactly 80.000% — no mortgage insurance. Borrow 360,000 instead, as in the PMI preset, and the ratio is 90%, so insurance applies. The premium is not a fixed fee: it is priced as an annual percentage of the balance and billed monthly, so the first month on the 360,000 loan at a 0.5% premium costs 150.00 and shrinks as the balance amortises. FHA loans run their own system entirely — an upfront guarantee fee plus annual mortgage insurance premiums that last 11 years with at least 10% down and for the life of the loan below that — so the 80/78 logic on this page is deliberately conventional-only.
When can I request removal of PMI?
You can ask your servicer to cancel conventional PMI once the balance reaches 80% of the ORIGINAL value, provided your payment history is current and the appraisal supports the value. On the 400,000/360,000 preset the schedule first touches the 320,000 request floor at month 98, when the balance sits at 319,623.85 — an LTV of 79.91%. Send the request then rather than waiting, because the automatic date runs later. The request is free, it must be handled in writing, and the servicer may order an appraisal at your expense — if the value has fallen, the request can be denied even though the amortisation math checks out. That is why this calculator measures every threshold against the original value: it mirrors what the servicer will actually compute, with no credit for market appreciation.
When does PMI end automatically without a request?
Under the Homeowners Protection Act, conventional PMI terminates automatically the first day of the month after the balance reaches 78% of the original value — measured on the original amortisation schedule, not on today's market value and not on extra payments you made later. On the default PMI example the 78% line is 312,000, and the schedule first crosses it at month 112 with a balance of 311,823.69, an LTV of 77.96%. Total premium paid up to that point is 15,802.85, against 13,959.20 if the servicer had stopped it at your 80% request floor in month 98 — a 1,843.65 difference for the cost of one letter. Two carve-outs matter: if you are behind on payments the servicer does not have to terminate, and if the loan is in negative amortisation or you defaulted, the automatic right can be suspended.
How can I lower my LTV quickly?
There are only two levers: raise the value or shrink the balance, and only the balance is under your control. Any one-time principal payment drops the ratio by exactly the payment divided by the value — 10,000 against the 400,000 example is 2.5 LTV points. On the PMI preset, paying the balance from 360,000 down to the 320,000 request floor needs 40,000 of principal, which is 10 points of LTV and moves you from 90% to the 80% line. Recurring extra principal works even better because it compounds against the amortisation: each dollar goes entirely to balance, and every threshold — 80% at month 98, 78% at month 112 — arrives sooner. The third lever, a higher appraised value, is not something you engineer, but a solid appraisal at purchase or refinance can lift the denominator and drop the ratio without touching the balance.
Does LTV affect my interest rate?
Yes — LTV is one of the four or five fields that price a conventional loan, alongside credit score, loan type, term and occupancy. Loan-level price adjustments stack: a 97% LTV acquisition carries a materially higher add-on than an 80% one, and the combination of high LTV with a thinner credit file multiplies rather than adds the penalty. A rough way to feel it: each tier you drop — 95 to 90, 90 to 85, 85 to 80 — tends to shave a visible slice off the note rate, and on a 320,000 balance even an eighth of a point changes both the payment and the total interest over 360 months. The corollary is that buying down to 80% does double duty: it removes the mortgage insurance obligation AND moves you into a better price tier, which is why the target-LTV solver in this calculator reports the maximum loan your equity target supports before you re-enter the market.
What is a good LTV ratio?
As a working rule, 80% is good, 90% is manageable, 97% is the practical ceiling for conventional purchase money, and anything above 100% means you owe more than the property is worth. At 80% on the default preset you hold 80,000 of equity — 20% of the asset — you avoid mortgage insurance entirely, and you price in the best conventional tier. Between 80% and 97% the loan is still financeable but mortgage insurance applies and the pricing add-ons grow with every point. Above 97% most conventional programs close their doors; government or portfolio products take over with their own insurance rules. Above 100%, as in a 430,000 balance against a 400,000 value (107.5% LTV, equity of negative 30,000), refinancing options narrow sharply and selling means bringing cash to the table. Good is contextual — an investor may run 75% on purpose for leverage — but for a primary residence the durable target is at or below 80%.
How is LTV different from home equity?
They are two readings of the same subtraction: equity is value minus total debt in currency, LTV is debt divided by value in percent, and one is always the mirror of the other — equity share equals 100% minus LTV. A 400,000 property with a 320,000 loan holds 80,000 of equity, which is 20% of the value, and the LTV is exactly 80.000%. Move the loan to 340,000 and equity falls to 60,000 (15%) while LTV rises to 85.000%. The currency figure matters for decisions — it is the real money behind a sale, a HELOC draw or a refinance — while the percentage is what lenders gate on, because it normalises across properties of different prices. When the balance exceeds the value the two measures diverge in feel but not in math: equity of negative 30,000 against a 400,000 home is an LTV of 107.5%, and both say the same thing — you are underwater.
Does the 78% rule use today's value or the purchase price?
The purchase price — more precisely, the original value the loan was written against. The Homeowners Protection Act computes both the 78% automatic termination and the 80% request threshold as percentages of the original value, which is why this calculator never lets you move the denominator. If you bought at 400,000 and the market later pushes the home to 460,000, the automatic line stays at 312,000 and the request floor stays at 320,000; appreciation does not pull the date forward. The flip side is also true: if the value falls, the thresholds do not rise to meet you — the schedule simply keeps amortising toward the same fixed currency lines. Appraisals matter for the request path only, because the servicer can refuse a cancellation if the supporting value has dropped below what the 80% of original value implies for their security position.
What LTV do lenders require for a HELOC or cash-out refinance?
For a HELOC, the binding number is CLTV — almost every mainstream program caps the combined package at 85% of the value, with a handful of lenders going to 90% for strong profiles. The HELOC preset shows the shape of that test: a 280,000 first mortgage is only 70% LTV by itself, but the 60,000 line stacked on top takes total debt to 340,000 and the package to 85.000% CLTV, leaving 60,000 (15%) of equity. Cash-out refinances key off the single new loan's LTV and set stricter ceilings than a rate-and-term refi — commonly 80% for a primary residence, lower for second homes and investment property. The practical consequence is that you cannot shop either product on the first-lien number alone: run the CLTV mode here with every balance you expect to carry, because that is the figure the underwriter will pull from the title report.

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