Finance tool

Debt-to-Income Calculator

Calculate debt-to-income ratio from your total monthly debt payments and gross monthly income.

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Instant useNo sign up, quick result.

Clear outputInput left, result right on desktop.

Practical checksUseful for quick planning and estimates.

What this tool helps with

Use this calculator to estimate your debt-to-income ratio.

Quick start

Enter your values, review the result and use the guide block below for a clearer explanation, example and FAQ.

Monthly debt payments (£)

Gross monthly income (£)

Guide

How debt-to-income ratio is estimated

Debt-to-income ratio is found by dividing monthly debt payments by gross monthly income, then multiplying by 100.

Example

Example use case

If debt payments are £750 and gross monthly income is £3,000, the DTI ratio is 25%.

Frequently asked questions

What does debt-to-income calculator show?

It gives a quick estimate based on the values you enter. It is designed for planning and rough checks rather than legal, tax or accounting advice.

Is the result exact?

No. It is a practical estimate. Real-world results can change with fees, rules, taxes, policies or personal circumstances.

Can I use this on mobile?

Yes. The calculator is designed to work on desktop and mobile, with the result panel dropping below the inputs on smaller screens.

Tool guide

How to use the debt-to-income calculator

Calculate debt-to-income ratio from your total monthly debt payments and gross monthly income. Use this page for a fast estimate, compare a few scenarios, and adjust the inputs until the result matches what you need to decide.

This tool also sits inside the CalcBeacon finance cluster. That makes it easier to find from category pages, related tools, and supporting guides when you want to compare options.

When it is usefulUse this tool when you want a fast estimate, want to compare options, or want a clearer answer before moving on.

Common mistakesCheck that your numbers use the same units, avoid leaving key fields blank, and test a second scenario so you can see how sensitive the final result is.

Next useful stepAfter using this page, compare the result with a related calculator or open the guide to check the number in context.

Related tools

Use these related tools to compare nearby calculations and move to the next step faster.