When to use this calculator
Express rent as a share of the monthly take-home income you enter. This ratio alone does not establish affordability or an appropriate rent budget.
Explore the personal budget calculators for other questions in this topic. For a related calculation, use the Sinking Fund Calculator: Find a regular monthly amount for a known future expense without interest.
PUTTING IT INTO PRACTICE
Rent to Income Ratio: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Rent per month | 900 |
| Take-home income per month | 3,000 |
| Result | 30 % |
- Check the input labels and enter the example values above.
- Apply the relationship: Ratio (%) = monthly rent/monthly take-home income × 100.
- The result is 30 %, rounded for display.
How to interpret your result
This ratio alone does not establish affordability or an appropriate rent budget.
Use a consistent monthly or annual period for both income and expenses. A savings rate is a share of income, while an emergency fund is an amount based on a chosen expense horizon. Targets are assumptions you set rather than universal rules.
Frequently asked questions
Are the default amounts recommended targets?
No. They are illustrative values showing how each calculation works. Replace them with amounts appropriate to your situation.
When is the rent to income ratio calculator useful?
Express rent as a share of the monthly take-home income you enter. This ratio alone does not establish affordability or an appropriate rent budget.
How do I use the rent to income ratio calculator?
Enter rent per month, take-home income per month. The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Ratio (%) = monthly rent/monthly take-home income × 100.
What should I check before using the result?
This ratio alone does not establish affordability or an appropriate rent budget.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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