Rent Affordability Calculator
Find the maximum monthly rent your income comfortably supports.
The classic rule of thumb is 30%.
Results update as you type.
This calculator is for illustrative purposes only. Actual rates, fees and terms vary by lender. Consult a qualified financial adviser before making borrowing decisions.
How it works
Knowing how much rent you can comfortably afford is the first step in any apartment search, and it prevents the painful mistake of falling for a place that quietly strains your budget every month. A rent affordability calculator turns your annual income and a chosen rent-to-income percentage into a clear monthly ceiling, so you can filter listings with confidence and negotiate leases knowing exactly where your limit sits. The widely cited rule of thumb is to spend no more than thirty percent of gross income on rent, a guideline landlords themselves often use when screening applicants. The calculator converts your yearly income to a monthly figure and applies your percentage, producing the maximum rent that keeps housing in balance with the rest of your life. If you carry heavy debt or want to save aggressively, you can dial the percentage down; if you live in an expensive city and prioritise location, you might stretch it up, eyes open to the trade-off. The math works because rent is best judged as a proportion of income rather than an absolute number: fifteen hundred dollars is comfortable on one salary and crushing on another. Framing affordability as a share keeps the decision grounded in your actual earnings. Treat the result as a ceiling, not a target, and remember that utilities, renters insurance, and other living costs sit on top of rent, so leaving headroom below the maximum is usually the wiser move.
Max monthly rent = (annual income ÷ 12) × (rent-to-income % ÷ 100)
Dividing annual income by twelve converts it to monthly income, and multiplying by your chosen rent-to-income share carves out the slice you are willing to devote to housing. The classic thirty percent guideline leaves the remaining seventy percent for savings, debt, food, transport, and everything else. Adjusting the percentage lets you tighten or loosen the budget to reflect your other obligations, so the result is a ceiling tailored to your own finances rather than a one-size figure.
Source:Standard rent-to-income guideline (30% rule)
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter annual income.
- 2
Adjust the options
Adjust rent-to-income percentage if they apply — sensible defaults are already set.
- 3
Read your result
Maximum monthly rent updates instantly as you type — no button to press.
Frequently asked questions
Is the 30% rule still a good guideline?
It remains a useful starting point and is widely used by landlords and lenders, but it is a rough guide rather than a law. In expensive cities many renters spend more, while those with heavy debt or ambitious savings goals may want to spend less. Treat 30% as a default, then adjust the percentage in the calculator to reflect your real obligations and priorities for a figure that fits your life.
Should I use gross or net income?
The classic 30% rule is based on gross income, your pay before taxes, which is also what most landlords use when screening. That keeps the calculator consistent with common practice. However, budgeting from take-home pay gives a more conservative and often more realistic picture, since taxes and deductions shrink what actually lands in your account. If you want a tighter limit, enter your after-tax annual figure instead.
Does this include utilities and other housing costs?
No. The result is the maximum base rent, and costs like electricity, gas, water, internet, renters insurance, and parking sit on top of it. Because those extras can add a meaningful amount each month, it is wise to aim below the calculated ceiling rather than at it. Leaving a cushion ensures the full cost of your housing, not just the rent line, stays within a comfortable share of your income.
What if my rent would exceed 30% of income?
It is not automatically unaffordable, but it deserves scrutiny. Spending more on rent means less for savings, debt repayment, and unexpected costs, which raises financial risk. If you must exceed the guideline, look for savings elsewhere in your budget, consider a roommate to split costs, or search a wider area for cheaper options. The calculator lets you raise the percentage so you can see exactly how much a higher share would allow.
How do landlords use rent-to-income ratios?
Many landlords require that your gross monthly income be at least three times the rent, which is the same as keeping rent at or below about a third of income. Some ask for a signed pay stub or proof of earnings to verify it. Knowing your affordable range in advance helps you target listings you will actually qualify for and strengthens your application by showing the numbers work comfortably.