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Debt-to-Income Ratio Calculator (DTI) — Are You Loan-Ready?

Calculate your DTI ratio instantly and see if you qualify for a mortgage, car loan, or personal loan.

Quick answer: Debt-to-income ratio compares monthly debt payments with gross monthly income. Lenders use DTI to judge mortgage, auto, and personal loan affordability, but your real budget may need a lower ratio.

Back-End DTI
40.00%
Back-End DTI
40.00%
Total Monthly Debts
$3,000
Front-End DTI (Housing Only)
29.33%
Diagnostic

Your debt-to-income ratio is 40.00%. Lenders typically prefer below 43.00% for mortgage approval.

Compare this against benchmarks to see where you stand.

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What to do next

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Your action plan
  1. 1

    Review the risk level and primary pressure point

    Calculate your Debt-to-Income ratio, the key number lenders use to qualify mortgages.

  2. 2

    Pressure-test one alternate scenario before deciding

    Assumptions change the answer, especially when rates, taxes, or timing matter.

  3. 3

    Save the result to Money Map or use the linked next action

    Turn the result into a prioritized action instead of treating it as a one-off number.

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This is an educational estimate, not tax, legal, investment, or lending advice. Tax rules, rates, and eligibility change and depend on your full situation. Confirm with a qualified professional or the provider before acting.

Calculator action path

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About mortgage rates

Mortgage rates depend on loan type (30-yr fixed, 15-yr fixed, ARM, FHA, VA, jumbo), your credit score, down payment, points paid, loan amount, property state, and whether you're purchasing or refinancing. The calculator above uses a representative market rate for payment estimates — your actual rate will vary.

For a personalized rate comparison, use the tool below to see lenders ranked by APR, loan type, and your profile.

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30-yr fixed · 15-yr fixed · FHA · VA · ARM — ranked by APR
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Mortgage rates shown on SwitchWize compare pages include loan type, assumed FICO, LTV, and points. Representative only — verify all terms directly with the lender. Advertising disclosure

Frequently Asked Questions

Everything you need to know.

What DTI ratio do I need for a mortgage?
Conventional loans typically require back-end DTI below 43%. FHA loans allow up to 50% with compensating factors. Fannie Mae and Freddie Mac may allow up to 45–50% for strong credit scores. Below 36% is considered excellent and qualifies for the best rates.
How do I lower my DTI quickly?
Two options: increase income (ask for a raise, add side income), or pay down debt (focus on any debt you can pay off completely to eliminate the payment). Minimum payments count against DTI whether the balance is $100 or $10,000 — eliminating a debt entirely removes its payment from your DTI calculation.
Is the Debt-to-Income Ratio Calculator (DTI) — Are You Loan-Ready? free to use?
Yes. SwitchWize calculators are free, and you do not need an account to run scenarios or view the result.
Does using the Debt-to-Income Ratio Calculator (DTI) — Are You Loan-Ready? affect my credit score?
No. Using a calculator does not trigger a credit check. A credit impact can occur only if you apply directly with a lender, card issuer, or provider.
Are the results personalized financial advice?
No. Calculator outputs are educational estimates based on the inputs you enter. Review assumptions and confirm terms directly with providers before making a financial decision.
What should I do after seeing the result?
Use the recommendation module on this page to compare mortgage rates, or run Money Map to compare this home & mortgage decision with your other opportunities.
How does SwitchWize choose related offers?
Related offers are matched by the calculator surface (mortgage) and ranked using SwitchWize data such as rate, fees, trust signals, product fit, and switching friction. Paid relationships do not change organic ranking order.
How fresh are the rates and offers shown?
Rate and offer data is reviewed on a recurring cadence and every offer module shows review context or links to the methodology and disclosure pages.
Where can I see the ranking methodology?
The SwitchWize methodology page explains how rate freshness, editorial review, affiliate disclosure, and category ranking factors work.
Can Money Map use this result?
Yes. Money Map is the broader diagnostic path: it compares savings, mortgage, cards, and debt so you can see whether this calculator result is your highest-impact next move.

Why This Matters

Your DTI ratio determines whether a lender will approve your loan application. Most mortgage lenders require a back-end DTI below 43%. Knowing your DTI before applying tells you exactly where you stand — and how to improve it.

How to Use It

  1. 1Enter your gross monthly income
  2. 2List all monthly debt payments (mortgage/rent, car, student loans, credit cards)
  3. 3See your front-end and back-end DTI ratios
  4. 4See your qualification status for mortgages and other loans
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Debt-to-Income Ratio Calculator (DTI) — Are You Loan-Ready? | SwitchWize