A Houston rent affordability calculator that tells you, in one glance, whether a rental fits your budget. It applies the widely used 30%-of-income rule to your earnings and compares the result against Houston’s market — where a typical 1-bedroom rents near $1,300. Enter your income and a target rent and the tool returns your affordable ceiling plus a clear fit-or-stretch verdict.
How it works
The 30% rule caps housing at 30% of gross monthly income:
Maximum affordable rent = gross monthly income x 0.30.
If you enter an annual salary, the tool divides by 12 first. It then compares your target rent to that ceiling. If the rent is at or below the ceiling it fits comfortably; if it is above, the tool shows how much you are over and what your rent-to-income ratio actually is.
Many landlords add a second screen — the 3x rent test, requiring monthly income of at least three times the rent (the same 30% threshold from the other direction). The calculator reports both views so you know whether a listing will also clear a landlord’s application criteria, not just your own budget.
Example and notes
Earning $60,000/year is $5,000/month gross, so your 30% ceiling is $1,500. Houston’s median $1,300 1-bedroom fits with $200 of headroom, and you clear the 3x screen easily. Push toward a $1,800 central unit and you would be at 36% of income — above the guideline and likely to fail a strict 3x check.
Notes: the 30% rule is a guardrail, not a hard limit, and ignores other debts. Rents vary widely by neighborhood tier, so use your ceiling to target the right areas. All calculations run locally in your browser.