3x Rent Calculator

Formula

Three-times-rent income = monthly rent × 3; rent limit = monthly gross income ÷ 3.

Worked example

With Monthly rent: 1500 currency units, Monthly gross income: 4800 currency units, income at three times rent is 4,500.00 currency units.

Inputs and calculation

The common screening shorthand compares monthly gross income with monthly advertised rent. Multiply rent by three for a target income, or divide income by three for the matching rent ceiling. The displayed relationship is Three-times-rent income = monthly rent × 3; rent limit = monthly gross income ÷ 3. Keep the fields' displayed units attached when reproducing this relationship by hand.

Worked numerical example

For example, enter monthly rent 1,500 currency units, monthly gross income 4,800 currency units. Those inputs produce income at three times rent of 4,500 currency units. The same values also give maximum rent at 3× rule 1,600 currency units; actual income-to-rent multiple 3.2 ×.

Holding the other example values fixed, change monthly rent from 1,500 to 1,650 currency units. The main output becomes 4,950 currency units. This comparison isolates the effect of that one input.

How to read and use the result

A multiple of three exactly meets this arithmetic rule, but a landlord may use different criteria. It is a screening ratio, not a complete affordability assessment. Quickly compare a listed apartment's rent with a stated monthly income.

Practical context

At a 1,500 monthly rent, the three-times shorthand points to 4,500 of monthly gross income. With 4,800 of gross income, the ratio is 3.2 and the arithmetic rent ceiling is 1,600.

Assumptions and scope

Income and rent are monthly gross amounts in the same currency. Utilities, debt, security deposit, taxes and landlord-specific qualification methods are outside the ratio. Replace the example defaults with measured inputs for your situation and account separately for factors outside these fields.

Checks and common mistakes

Do not equate a landlord's screening threshold with a comfortable household budget. A household can satisfy 3× rent and still have little cash after childcare, debt or transport.

Common questions

What should I verify before using the 3x Rent Calculator result?

Application screening may count verified household income, exclude variable bonuses, or consider guarantors differently. Even where a landlord accepts the ratio, compare rent plus utilities with after-tax pay and other fixed commitments. The rule cannot estimate an affordable deposit, moving budget or emergency cushion.

Sources and references

• CFPB: Decide what you can afford