Debt-to-Income (DTI) Calculator

The Debt-to-Income (DTI) Calculator measures your monthly debt payments against your gross monthly income. Lenders use this ratio to assess how much of your income goes toward debt and whether you can afford new borrowing.

Debt-to-Income (DTI) Calculator

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What the result means

DTI is your monthly debt payments divided by your gross monthly income, expressed as a percentage. A lower DTI means more of your income is available for new obligations. Lenders generally prefer a DTI below 36%, with 43% often the maximum for qualified mortgages.

How to use this calculator

  1. 1Enter your total monthly debt payments (loans, credit cards, EMIs).
  2. 2Enter your gross monthly income (before taxes).
  3. 3Press Calculate to see your DTI percentage and rating.
  4. 4Compare your result with lender thresholds (typically below 36% is preferred).
  5. 5Use the result to understand your borrowing capacity.

The formula

The calculation uses a standard, verifiable formula. Here it is in its simplest form.

DTI = (Monthly debt payments ÷ Gross monthly income) × 100

What each variable means

SymbolNameDescription
DebtMonthly debt paymentsAll your monthly debt obligations, including loans and credit cards.
IncomeGross monthly incomeYour income before taxes and deductions.
DTIDebt-to-income ratioThe percentage of income going toward debt.

Step-by-step example

Example: ₹20,000 debt against ₹60,000 income

Monthly debt:₹20,000Monthly income:₹60,000
  1. 1DTI = 20,000 ÷ 60,000 × 100
  2. 2= 33.3%
  3. 3This is below 36%, considered healthy by most lenders.

Result

33.3% (Healthy)

What changes the result

  • Higher debt payments increase your DTI.
  • Higher income lowers your DTI.
  • Lenders use DTI alongside credit score to assess risk.
  • A DTI above 43% may make it difficult to qualify for new loans.

Edge cases to be aware of

Unusual situations handled correctly

  • If income is zero, DTI is undefined — the calculator returns 0.
  • A DTI of 0% means you have no debt payments.
  • DTI can exceed 100% if debt payments exceed income.

Common mistakes

Avoid these errors

  • Using net income instead of gross income.
  • Forgetting to include all debt payments.
  • Confusing DTI with credit utilization ratio.

Assumptions

  • All debt payments are monthly and consistent.
  • Income is stable and gross (before taxes).
  • No other financial obligations are considered.

Limitations

  • Does not account for your credit score, savings, or assets.
  • Lenders may use different DTI thresholds for different loan types.
  • This is a screening metric, not a complete financial assessment.

Frequently asked questions

What is a good DTI ratio?+
A DTI below 36% is generally considered healthy. Between 36% and 43% is moderate, and above 43% may make it difficult to qualify for new loans.
How is DTI different from credit utilization?+
DTI compares your total debt payments to your income. Credit utilization compares your credit card balances to your credit limits. Both affect your creditworthiness but measure different things.
How can I lower my DTI?+
Increase your income, pay down debt, or both. Even small reductions in monthly debt payments can meaningfully lower your DTI and improve your borrowing options.

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