What this calculator does
The most widely used affordability benchmark is the 30% rule: keep rent at or below 30% of your gross monthly income. This tool checks a specific Baltimore rent against your income, reports your rent-to-income ratio, and tells you the maximum rent you can comfortably carry. It also benchmarks against Baltimore’s median 1-BR rent of about $1,500.
How it works
The calculation is direct:
monthly_income = annual_income / 12 (if you enter annual)
max_rent = monthly_income * 0.30
ratio = target_rent / monthly_income
affordable = target_rent <= max_rent
A ratio at or below 30% is considered affordable; 30–40% is stretched; above 40% is cost-burdened. Many Baltimore landlords also screen with the equivalent “income must be 3× the rent” requirement, which the tool reports for context.
Example and notes
On a $60,000 salary, monthly income is $5,000, so the recommended max_rent = 5,000 * 0.30 = $1,500 — exactly Baltimore’s median 1-BR. A $1,650 apartment would push the ratio to 33%, slightly cost-burdened, and many landlords requiring 3× rent ($4,950) would still approve a $5,000 income. If your ratio runs high, consider a roommate to split rent or a lower-tier neighborhood. The rule uses gross income; budgeting against take-home pay is more conservative.