Use our free debt to income calculator to find your DTI ratio instantly.

Quick Answer: Enter your monthly income and debt payments to instantly calculate your debt-to-income ratio and see how lenders view your financial health.

Monthly Income

Gross Monthly Income ($) — before taxes

Monthly Debt Payments

Credit Card Minimum Payments ($)

Car Loan Payment ($)

Student Loan Payment ($)

Mortgage / Rent ($)

Other Monthly Debt Payments ($)

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Monthly Income

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Total Monthly Debt

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DTI Ratio Guide

Under 36% — Excellent. Lenders view you as low risk.

36%–43% — Acceptable. May qualify for most loans.

43%–50% — High. Loan approval becomes difficult.

Over 50% — Very High. Most lenders will decline.

Table of Contents

How This Debt-to-Income Calculator Works

Your debt-to-income ratio (DTI) is one of the most important numbers lenders use to evaluate your creditworthiness. It compares your total monthly debt payments to your gross monthly income.

DTI Formula: Total Monthly Debt Payments ÷ Gross Monthly Income × 100

Enter your gross monthly income (before taxes).
Enter all your monthly debt payments — credit cards, loans, mortgage, etc.
Click “Calculate My DTI Ratio” to see your score and rating.

All calculations use standard financial formulas. See our Methodology page for the exact formulas used.

Example Calculation

Scenario: $5,000 monthly income

Gross Monthly Income$5,000

Credit Card Payments$150

Car Loan$350

Mortgage$1,200

Total Monthly Debt$1,700

DTI Ratio34% — Excellent

With a 34% DTI, this person would qualify for most mortgages and personal loans. Keeping DTI under 36% is the gold standard for loan approval.

Related Debt Calculators

Explore our other free tools to take full control of your finances:

💳 Credit Card Interest Calculator 💰 Minimum Payment Calculator 📅 Debt Payoff Calculator 🔄 Balance Transfer Calculator

How This Calculator Works

This calculator divides your total monthly debt payments by your gross monthly income to produce your debt-to-income (DTI) ratio, expressed as a percentage. Monthly debt payments include credit card minimum payments, auto loans, student loans, personal loans, and mortgage or rent payments. Gross income is your income before taxes and deductions.

The formula is straightforward: DTI = (total monthly debt payments ÷ gross monthly income) × 100. Lenders use this ratio to assess whether you have enough income to manage additional debt. A lower DTI indicates a stronger financial position.

When Should You Use This Tool

Check your DTI before applying for a mortgage, car loan, or any new credit product. Most conventional mortgage lenders require a DTI below 43%, and the best rates typically go to borrowers with a DTI below 36%. Knowing your ratio in advance lets you decide whether to pay down existing debt before applying — which can significantly improve your approval odds and the rate you receive.

This calculator is also useful for assessing your overall debt load even when you are not applying for new credit. If your DTI is above 40%, a large portion of your income is committed to debt service, leaving limited room for savings or unexpected expenses.

Example Calculation

Suppose your gross monthly income is $5,500 and your monthly debt payments are: $350 mortgage, $280 car loan, $120 student loan, and $95 credit card minimum payments — totaling $845 per month. Your DTI is $845 ÷ $5,500 = 15.4%. This is well below the 36% threshold and indicates a strong debt position.

If the same person also carries $600 per month in additional loan payments, the DTI rises to ($1,445 ÷ $5,500) = 26.3% — still acceptable for most lenders, but approaching the range where new credit approval becomes less certain.