— Free rent affordability calculator

Rent Affordability Calculator: How Much Rent Can I Afford?

Max Affordable Rent
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Your Finances
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Total Expenses $0
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Groceries, utilities, insurance
How Rent Affordability Works
A rent affordability calculator takes your gross monthly income, subtracts monthly debt payments, and applies a percentage rule (typically 30% of gross income) to determine the maximum rent you can afford while staying within a healthy budget. It also factors in other expenses to show whether you'll have enough left for savings.
The 30% rule is a widely-used guideline that says your gross monthly income should be at most 30% for housing costs (rent plus utilities). It's the standard used by most landlords and mortgage lenders. If you earn $4,500/month, your rent should stay under $1,350.
Senator Elizabeth Warren popularized the 50/30/20 budget framework:
  • 50% — Needs: Rent, utilities, groceries, insurance, minimum debt payments.
  • 30% — Wants: Dining out, subscriptions, entertainment, hobbies.
  • 20% — Savings: Emergency fund, retirement, debt payoff beyond minimums.
Our calculator uses the 30% or 50% options to reflect the "Needs" portion being spent on rent.
  • Negotiate your lease — Ask for 2–5% off if you've been a good tenant. Worst they say is no.
  • Sign a longer lease — 18–24 month leases often come with lower monthly rates.
  • Move to a cheaper area — A 15-minute commute difference can mean $300+/month.
  • Find a roommate — Splitting a 2-bedroom often cuts your rent in half.
  • Look for move-in specials — Many buildings offer first month free or reduced security deposit.

The 30% Rule — Gross vs Net Income for Rent

Use this rent affordability calculator to quickly find out how much rent you can afford based on your monthly income, debts, and expenses. Whether you're moving to a new city, comparing apartments, or building a budget, this tool gives you a clear answer in seconds — using the 30% rule, 50/30/20 budget framework, or a custom percentage that fits your life.

RentFit Guides

Long-form answers to the questions behind the calculator.

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How Much Rent Can I Afford?

The 30% rule, 50/30/20, gross versus net income, and debt adjustments, with worked numbers at each income.

Read the guide →
📐

The 30% Rule, Explained

Where the rule comes from, exact math at every income, gross vs net versions — and when spending more than 30% is actually smart.

Read the guide →
🧾

Rent Budgeting Deep-Dive

50/30/20 needs buckets, emergency funds for renters, roommate split strategies, first-apartment setup costs, annual recalculation.

Read the guide →

Frequently Asked Questions

Quick answers — the guides above go deeper on each.

How much rent can I afford?

A common guideline is to spend no more than 30% of gross monthly income on rent — and closer to 25–30% of take-home pay. Adjust downward for debt payments, and add utilities and other housing costs when you compare apartments. RentFit applies your chosen percent to the monthly gross income you enter and subtracts debts. It does not estimate taxes or take-home pay.

Should I use gross or net income?

Both, for different questions. Landlords approve on gross (income ≥ 2.5–3× monthly rent). You live on net — so budget the rent decision on take-home pay. The difference is often $400–700 a month. This calculator only uses the gross monthly income you enter; it does not estimate taxes.

What is the 50/30/20 rule for rent?

50/30/20 splits take-home pay into 50% needs, 30% wants, 20% savings. Rent lives inside the 50% needs bucket with groceries, utilities, and transport — which usually yields a lower rent target than the flat 30% rule. On RentFit the 50% button applies 50% of the gross income you enter and subtracts monthly debts. It does not calculate taxes or a full wants-and-savings budget.

Does the 30% rule include utilities?

The classic rule covers rent alone; HUD's housing-burden definition includes utilities. Practical version: if utilities are billed separately, trim $100–250 from your rent target so total housing cost stays inside the rule. This calculator does not apply HUD rent limits.

How does debt change what I can afford?

Contractual debt cuts your rent ceiling dollar-for-dollar — a $600 loan payment is $600 less rent budget. Landlords also screen debt-to-income, typically wanting rent plus debts under ~40% of gross income. RentFit subtracts the monthly debts you enter; it does not estimate approval odds.

Do roommates count for income requirements?

Usually yes — most landlords qualify combined household income against the 2.5–3× rent multiple. Compare your share of the rent against your own income to keep the budget honest. RentFit only divides the max rent by the number of people you enter; it does not combine incomes.

What percentage of income should rent be at $60,000?

At $60,000 gross ($5,000/month), the 30% rule says $1,500 before debt payments. Enter 5000 as monthly gross income and RentFit applies the rule you select. It does not estimate taxes or a take-home range.

Is this calculator free and private?

Yes — free, no sign-up, and everything runs in your browser. The numbers you enter never leave your device.