Part of the topic: 🏠 Home, energy & car
Heating cost calculator
Enter your heat consumption – or living space and building type – plus your energy price and standing charge. The calculator shows yearly and monthly costs and compares a heat pump.
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🔒 Runs entirely in your browser – nothing you enter is uploaded or stored.
How to use it
- Choose your heating type and whether you know your consumption in kWh (from your bill) or want to estimate it from living space.
- Enter energy price and standing charge from your contract.
- Read yearly and monthly costs – and the comparison with a heat pump.
Last checked: October 2026 · Based on: German Fuel Emissions Trading Act (BEHG), 2026 CO2 price. Found a mistake? Use the form below – we fix confirmed errors and update the date.
Frequently asked questions
How much does heating cost per m²?
It depends on the building and the energy price. A partly renovated flat with about 150 kWh/m² at 12 ct/kWh costs roughly 18 € per m² and year plus standing charge.
How do I convert oil litres or gas m³ into kWh?
1 litre of heating oil ≈ 10 kWh. For gas, the bill converts m³ into kWh with the calorific value and the condition number – usually about 10–11 kWh per m³.
Is a heat pump cheaper?
It needs only a third to a quarter of the heat as electricity. Whether it is cheaper depends on the electricity and gas prices and how well the house is insulated.