Shared Apartment Cost Calculator
Split costs in a shared apartment fairly. By room size and common area. With current tax rates per federal state and 2026 reference values.
Rooms / Roommates
Total Costs (Rent + Utilities)
1.450,00 €
| Name | Room | Share | Rent | + Util. | Total |
|---|---|---|---|---|---|
| Person 1 | 18,0 m² | 53,2% | 638,71 € | 125,00 € | 763,71 € |
| Person 2 | 14,0 m² | 46,8% | 561,29 € | 125,00 € | 686,29 € |
Rent is distributed by room size. Common area (30 m²) is equally shared. Utilities are split equally.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
Frequently Asked Questions
How should shared apartment costs be split?
Common methods are equal splitting, room-size-based splitting, or income-based splitting. Base rent is usually split by room size, while shared utilities are often divided equally.
What legal considerations apply to shared apartments?
In a shared lease (Gemeinschaftlicher Mietvertrag), all tenants are jointly liable. In a main tenant model (Hauptmieter), only the main tenant has the lease and sublets to others.
What is the Shared Apartment Cost Calculator?
The shared flat cost calculator distributes costs among all flatmates fairly, based on room size or individual usage.
How does the Shared Apartment Cost Calculator work?
Enter the total rent, service charges and room sizes for all flatmates. The calculator distributes costs proportionally by room size (shared areas split equally). Alternative splits by headcount or income are available.
Key Data and Facts
Fair method: shared areas equally, private areas by sqm. Service charges often split per person. Broadcasting fee (GEZ): 18.36 euros/month per household (not per person).
Step-by-Step Guide
So verteilen Sie die WG-costs fair step by step: 1. Gesamtmiete und Nebenkosten enter: Die monatliche Warmmiete der gesamten Wohnung. 2. Wohnflaeche aufteilen: Private Zimmer jedes Bewohners in qm. Gemeinschaftsflaechen (Kueche, Bad, Flur) getrennt erfassen. 3. Verteilungsschluessel choose: Nach Zimmergroesse: Private Flaeche anteilig + Gemeinschaftsflaeche gleichmaessig. Nach Kopf: Gesamtmiete / Anzahl Bewohner (einfachster Schluessel). Mischmodell: Kaltmiete nach Flaeche, Nebenkosten nach Kopf. 4. share calculate: Pro Person: (eigene qm / Gesamtflaeche) x Kaltmiete + anteilige Gemeinschaftsflaeche + Nebenkosten/Kopf. 5. Sonderkosten aufteilen: GEZ-Rundfunkbeitrag: 18,36 EUR/month fuer die Wohnung (nicht pro Person). Internet: gleichmaessig teilen. Strom: nach Verbrauch oder nach Kopf.
Calculation Example
3er-WG, Warmmiete 1.350 EUR, Zimmer: 18 qm, 14 qm, 12 qm. Gemeinschaftsflaeche: 26 qm. Person 1 (18 qm): (18+8,67)/70 x 1.350 = 514 EUR. Person 2 (14 qm): 437 EUR. Person 3 (12 qm): 399 EUR.
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