Knowledge and tools

Rental budget calculator: compare rent and housing costs

How much does an apartment cost in total and what is left over each month? Compare two offers with your own information.

Illustration (AI generated): Kitchen-living room with notebook, coins and bicycle for budget planning; symbolic illustration
Directly to the calculator/check

Last updated: 08.10.2026 · By DDORF WOHNEN · Software development and editorial work

The calculator is loading…

Compare two rental offers that fit your budget

Enter your own amounts and assumptions. Leave unknown fields blank; enter 0 explicitly if a cost does not apply. The deposit and moving costs belong in your initial cash reserve, not your monthly rent.

Your budget and your starting reserve
Offer A
Offer B

Our own calculation

For a complete comparison, fill out all fields for both offers and the household. Only finite, non-negative amounts up to 100.000.000 € are valid.

This calculator neither stores nor transmits your form inputs. Other analytics services depend on your consent. It makes no promise of benefits, financing or rental rights and does not assess whether a benefits authority considers accommodation costs reasonable.

Rent including heating is not automatically the complete housing budget

Check which items are included in the offer. Add any missing heating, electricity, internet, parking space or furniture costs once in the appropriate field. Avoid double amounts if costs are already included in the additional costs flat rate.

Monthly comparison and starting reserve separately

Monthly housing costs comprise basic rent, operating costs and heating, other housing costs and travel costs. The remaining budget is net income minus other expenses, planned reserves and those housing costs. The deposit, moving and setting-up costs are separate liquidity assumptions. The calculator neither determines benefit entitlement nor calculates a legally permissible rent.

What the comparison doesn't say about an apartment

A lower monthly amount does not prove a better location, lower energy consumption or a legally permissible rent. Compare the actual contract, condition and route. Asking rents and local comparative rents are separate types of data; for legal questions, an individual examination is required.

Related tools and background information

Data sources

Official source · Our own calculation · Our own analysis · DDORF estimate → Methodology

  • Our own calculationOur own calculationBased on your inputs; no market prices or commitment to provide services or financing.Processing status 08.10.2026
  • Third party sourceVerbraucherzentrale: HaushaltsbuchGeneral guidance on income and expenses; not the data source for your calculation results.Source check 08.10.2026View source(opens new window)