Rent Calculator Germany
Work out warm rent from cold rent, service and heating costs, and check a rent increase in Germany against the 20%/15% cap over 3 years and the waiting period.
Calculate Warm Rent
Warm Rent / Month
€1,050.00
Warm Rent / Year
€12,600.00
Check Rent Increase
Rent increase likely permissible
Increase: €100.00 (12.5%)
Cap limit: max. 20% in 3 years
Max. permissible new rent: €960.00
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
FAQ
Frequently Asked Questions
How is the maximum allowable rent determined?
The local rent index (Mietspiegel) determines the comparative rent. In areas with a rent brake (Mietpreisbremse), new rents may not exceed 10% above the comparative rent, with some exceptions.
What is included in the warm rent?
Warm rent (Warmmiete) includes the base rent (Kaltmiete) plus utilities (heating, water, waste, property management). Electricity and internet are usually paid separately by the tenant.
By how much may the rent rise in an existing tenancy?
For an increase up to the local comparative rent (§ 558 BGB), the cold rent may rise by no more than 20% within three years, or 15% in municipalities designated by state ordinance as having a tight housing market; in addition, the rent must have been unchanged for at least 15 months when the increase takes effect. With the defaults, an increase from 800 to 900 euros (12.5%) is therefore permitted; up to 960 euros would be possible, or 920 euros in a tight housing market. If the rent was already increased within the last three years, enter the rent from three years ago as the current rent, because the cap (Kappungsgrenze) refers to that figure. The calculator does not check whether the new rent exceeds the local comparative rent according to the rent index (Mietspiegel).
Guide
What is the Rent Calculator Germany?
The rent calculator computes the warm rent from cold rent and ancillary costs or determines the per-square-metre rent for comparison with the rent index.
How does the Rent Calculator Germany work?
Enter the cold rent, service charges and heating costs. The calculator computes the warm rent and the price per square metre. A comparison with the local rent index shows whether your rent is reasonable.
Key Data and Facts
Average rent Germany 2026: approx.Average net rent: 7.28 euros/sqm (2022 census); considerably more for new lettings and in big cities, e.g. Munich 12.89 euros/sqm on average. Service charges: approx. 2.50-3.50 euros/sqm. Rent brake: max. 10% above the local comparative rent.
Step-by-Step Guide
How to calculate your rental costs step by step: 1. Enter the base rent: The pure rent without additional costs as stated in the rental contract. 2. Add the operating costs: Property tax, refuse collection, water/sewage, caretaker, building insurance, stairwell cleaning and more. Average: approx. 2.50-3.50 EUR/sqm. 3. Add the heating costs: Depending on the type of energy and consumption approx. 1.00-2.00 EUR/sqm. 4. Total rent = base rent + operating costs + heating costs. 5. Calculate the price per square metre: Base rent / living space = EUR/sqm. Compare it with the local rent index. 6. Check the rent cap: In tight housing markets, when re-letting, the rent may be at most 10 % above the local comparable rent. Exceptions: new buildings and extensive modernisation. 7. Rent share of income: Recommendation: at most 30 % of net income for the total rent.
Calculation Example
70 m² flat in Munich. Base rent (Kaltmiete): 980 EUR (14 EUR/m²). Service charges: 210 EUR (3.00 EUR/m²). Heating: 98 EUR (1.40 EUR/m²). Total warm rent: 1,288 EUR/month.
Sources
Official sources
Calculations are based on applicable German laws and official data:
- Bürgerliches Gesetzbuch (BGB)
- Rechtsanwaltsvergütungsgesetz (RVG)
- Bundesministerium der Finanzen (BMF)
Full methodology at Methodology.
Reviewed by Konstantin Iakovlev · Last updated:
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