Calculator
Debt-to-income ratio calculator
This is for anyone who wants to see one number that lenders often look at: how much of your gross monthly income goes to debt payments. You type your own payments and income. Nothing is pre-filled, nothing leaves your device, and the result updates as you type.
Worked example (shown when scripts are off)
$2,000 of monthly debt payments divided by $6,000 of gross monthly income is 0.333, so the ratio is about 33.3%. Turn scripts on to use your own figures.
Before you decide anything
This number describes your situation. It does not tell you whether to borrow, refinance or pay anything off. Lenders often look at this ratio, and each one sets its own rules, so ask the lender how it calculates it. This is general information, not financial advice.
The formula
Debt-to-income ratio = total monthly debt payments / gross monthly income x 100. Gross means before taxes and deductions. The calculator adds the six payment boxes, divides by the income you typed and multiplies by 100, then rounds to one decimal place. The housing figure is also shown on its own as a share of gross income, because some lenders look at housing separately.
Worked example
Suppose a household pays 1,200 for a mortgage, 350 for a car loan, 150 for student loans and 100 in credit card minimums. That totals 1,800 a month. If gross monthly income is 6,000, the ratio is 1,800 / 6,000 x 100 = 30.0%. Housing alone is 1,200 / 6,000 x 100 = 20.0%. The same debts on 4,500 of income give 40.0%, which shows how income and debt both move the number.
What counts and what does not
Public guidance describes the ratio as monthly debt payments such as a mortgage, auto loans and other debts, divided by gross monthly income. It does not usually count everyday spending such as groceries, utilities or phone bills. Which items a lender counts, and whether rent is included, can differ by lender and loan type, so treat the boxes as a guide and not a rule. Use the minimum payment due on a card, not the full balance. If a loan is paid off within a few months, a lender may treat it differently, which this tool cannot know.
Limits of this tool
- It uses only what you type. It does not look up rates, limits or lender rules, and it does not say what ratio is good or bad, because each lender and loan type sets its own limit.
- It uses gross income, so it does not show what is left after tax. The leftover line is before tax and is not take-home pay.
- Irregular income needs a judgment about which monthly figure to use. A lender may average it over time.
- It is not a credit score and does not predict approval.
Where this comes from
The definition and formula follow the Consumer Financial Protection Bureau's explanation of debt-to-income ratio, which defines it as all monthly debt payments divided by gross monthly income and notes that different loan products and lenders have different limits. We read that explanation and did not review lender manuals. The arithmetic is simple division, checked by a Node test script with edge cases such as zero debt, zero income and typed commas.