Debt To Income Calculator

Reviewed by the CalculatorHub team, edited by James Graham. Method from CalculatorHub methodology. Last verified 2026-06-23.

The Debt To Income Calculator computes debt to income from the relation DTI = total monthly debt payments divided by gross monthly income, times 100. It takes 2 inputs (total monthly debt payments in USD, gross monthly income in USD) and returns the debt to income. Because this is a pure mathematical or physical formula rather than a jurisdiction-specific rule, the result never changes over time: the same inputs always produce the same answer, so you can rely on it whether you are checking homework, sizing a design, or sanity-checking another tool. Enter your values in the fields below and the result updates instantly; you can also share a permalink that pre-fills the exact calculation, which is useful for teaching, reports, or collaboration. For example, with total monthly debt payments = 1500 USD, gross monthly income = 5000 USD, the debt to income works out to 30, and the worked example further down the page shows every step so you can follow the arithmetic and reproduce it by hand. The method is the standard form documented by CalculatorHub methodology, and the figure above each result carries the date it was last verified. This tool is general information and is not a substitute for professional engineering, medical, financial, or scientific advice; always check critical results against the primary source and your own judgement.