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Rent Affordability Calculator
Multiplies monthly income by a user-chosen rent-to-income guideline percent (default 30) and optionally compares a proposed rent against that ceiling.
Limitation: Educational rule-of-thumb worksheet only—not financial advice, a landlord screening tool, or a guarantee you can pay rent.
How to Estimate a Rent Ceiling
Pick one income definition and stick with it so percentages are meaningful.
Choose a display currency (no FX conversion).
Gross vs take-home
Many landlord screens use gross income. Your household budget usually cares about take-home. Run both if you need both lenses.
What the Rent Affordability Result Means
The primary result is the guideline ceiling. Status labels under/at/over only appear when a proposed rent is entered. Percents are undefined when income is zero.
Rent Affordability Examples
Classic 30% ceiling
Income and rent inputs
Max rent at guideline
30% of 5,000 is 1,500.
Listing above guideline
Income and rent inputs
Max rent at guideline
1,400 is 200 above the 1,200 ceiling.
After you calculate
Fold rent into a full monthly budget and compare with 50/30/20 needs targets if you want lifestyle context.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorRent Affordability Formulas
No credit score, deposit schedule, or rent-burden model from a specific jurisdiction is applied.
Formula
Guideline ceiling
monthly income × guideline% ÷ 100
Rent-to-income percent
proposed rent ÷ monthly income × 100
Headroom
max rent − proposed rent
Scientific Background
Assumptions: one month, one currency, user-chosen guideline. Limitations: utilities, parking, roommates, irregular income, and landlord underwriting criteria are out of scope. This is not a lease decision.
Sources & review
Rent Affordability Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
July 22, 2026
Consumer financial tools
Consumer Financial Protection Bureau (CFPB)
https://www.consumerfinance.gov/consumer-tools/renting/Consumer financial tools
Consumer Financial Protection Bureau (CFPB)
https://www.consumerfinance.gov/ask-cfpb/what-is-a-debt-to-income-ratio-en-1791/Free Calculator Hub methodology
Free Calculator Hub
/methodology
See our methodology and corrections policy.