https://innago.com/dti-ratio-calculator/
The DTI ratio is calculated by dividing your total monthly debt payments by your gross monthly income. For example, if you pay $1,500 a month in debts (like credit cards, student loans, and car payments) and your gross income is $5,000 per month, your DTI would be 30% ($1,500 ÷ $5,00. Lenders use this ratio to assess the risk involved in offering you a loan. The lower your DTI, the less risky you appear to lenders.