🏠 Rent Affordability Calculator

See how much rent you can afford by the 30% rule, the 40x landlord rule and a debt-adjusted limit, then check if a specific apartment fits.

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Debt payments: car loan, student loans, credit card minimums and other loans. Utilities: electricity, gas, water, internet — whatever the rent does not include.

Comfortable maximum rent (lowest of the three rules)
$1,350 /month
on $60,000 a year ($5,000 a month) before tax
RuleHow it worksMax rent
30% rule30% of gross income, minus utilities$1,350
40× ruleAnnual income ÷ 40 (landlord screening)$1,500
Debt-adjusted36% of gross income, minus debts and utilities$1,350

Check a specific apartment

What Rent Affordability Calculator Does

This rent affordability calculator answers “how much rent can I afford?” three ways and shows the most cautious answer. The 30% rule keeps rent and utilities at or below 30% of gross income — the line the U.S. Department of Housing and Urban Development uses to call a household cost-burdened. The 40× rule is what many landlords check: annual income of at least 40 times the monthly rent. The debt-adjusted limit keeps rent, utilities and other debt payments within 36% of gross income.

Enter income per year, per month or per hour, add your monthly debt payments and expected utilities, and the calculator gives each limit. Then type the rent of a specific apartment to see what share of your income it would take and whether you meet a 40× landlord requirement.

How to Use Rent Affordability Calculator

  1. Enter your gross income per year, month or hour
  2. Add your monthly debt payments and expected utilities
  3. Compare the 30% rule, 40x rule and debt-adjusted limits
  4. Use the lowest figure as a comfortable maximum
  5. Enter a specific rent to check it against your income

Formula Used by Rent Affordability Calculator

Three limits

30% rule: 0.30 × monthly gross − utilities · 40× rule: annual gross ÷ 40 · Debt-adjusted: 0.36 × monthly gross − debts − utilities

Worked example

$60,000 a year, $300 in debt payments, $150 utilities.

  1. 30%: $1,500 − $150 = $1,350
  2. 40×: $60,000 ÷ 40 = $1,500
  3. Debt-adjusted: $1,800 − $300 − $150 = $1,350

Result: A comfortable maximum of about $1,350 a month.

Rent at 30% of Gross Income

Rent plus utilities; hourly figures assume 40 hours a week, 52 weeks a year.

IncomeMonthly grossMax rent + utilities
$15/hour ($31,200)$2,600$780
$20/hour ($41,600)$3,467$1,040
$50,000$4,167$1,250
$75,000$6,250$1,875
$100,000$8,333$2,500

How to Read Your Result

When 30% does not work

In expensive cities many renters spend well above 30%, and at low incomes even 30% can leave too little for other needs. Treat the rules as starting points: if rent will take more, look for savings elsewhere — a roommate, a longer commute, lower transport costs — and keep an emergency fund.

Meeting a 40× requirement

If your income falls short, landlords may accept a guarantor (often required to earn 80× the rent), a larger deposit where local law allows, proof of savings, or an institutional guarantor service for a fee. Rules on deposits vary by state and city.

Limitations & Accuracy Notes

  • Uses gross (pre-tax) income, as landlords and HUD do; take-home pay will be lower.
  • Local rules on deposits, fees and screening vary.
  • A guideline, not financial advice.

Frequently Asked Questions

How much rent can I afford?
A common guideline is 30% of your gross income for rent and utilities. On $60,000 a year ($5,000 a month) that is $1,500 including utilities. The calculator also checks the 40x landlord rule and a limit that accounts for your other debts, and shows the lowest.
What is the 30% rule for rent?
Keep housing costs at or below 30% of gross income. The U.S. Department of Housing and Urban Development (HUD) calls households that spend more than 30% on housing “cost-burdened”, and more than 50% “severely cost-burdened”.
What is the 40x rent rule?
Many landlords, especially in New York City, require annual income of at least 40 times the monthly rent. For a $2,000 apartment that means $80,000 a year. Some accept a guarantor who earns 80 times the rent instead.
How do debts change what I can afford?
Car payments, student loans and credit cards take money you would otherwise have for rent. The debt-adjusted figure keeps rent, utilities and debt payments together within 36% of gross income, which is more cautious when you carry debt.
How much rent can I afford on $20 an hour?
Full time at 40 hours a week, $20 an hour is about $41,600 a year. By the 30% rule that allows roughly $1,040 a month for rent and utilities, and the 40x rule allows about $1,040 a month in rent.
What other costs come with renting?
Expect a security deposit (often one month’s rent), first month’s rent, application fees, renter’s insurance, moving costs, and possibly broker fees or parking. Budget for these before you sign.
By OnlineToolHubs Team • September 2026