This rent affordability calculator works out the maximum rent you can reasonably pay based on your net monthly income, using the common 30% recommended and 35% prudent-limit guidelines.
How much of your income should go to rent
The rule of thumb used by landlords, tenants and financial advisors alike is to cap rent at 30-35% of net monthly income, leaving room for the rest of your expenses, debt payments and savings. Going above that share tends to squeeze the rest of your budget, even if the rent itself feels “affordable” on paper.
Example
With €1,800 in net monthly income, the recommended rent is about €540 (30%), with a prudent upper limit of €630 (35%). Landlords and rental platforms often apply a similar income-to-rent ratio when screening applicants, so staying within this range can also make it easier to get approved.
For guidance only — your actual budget depends on your other expenses and financial goals.