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Heating cost calculator

Calculate heating energy and heating costs from consumption or living area for various energy sources - with a base price, cost per m2 and an optional scenario comparison.

Available

Inputs

Enter values

Live
From consumptionThe final energy consumption is known

Preise und Zeitraum

iPassend zur Verbrauchseinheit; keine Marktpreise hinterlegt.
€/Einheit

Passend zur Verbrauchseinheit; keine Marktpreise hinterlegt.

EUR
Monate
iFür nutzbare Wärme: z. B. 0,9 Gas, 3,5 Wärmepumpe.

Für nutzbare Wärme: z. B. 0,9 Gas, 3,5 Wärmepumpe.

Optionaler Vergleich

kWh/l/m³/kg
€/Einheit
EUR
iMenge passend zum Energieträger.
kWh/l/m³/kg

Menge passend zum Energieträger.

iFür Kennzahlen pro m²; im Flächenmodus erforderlich.
m²

Für Kennzahlen pro m²; im Flächenmodus erforderlich.

Load example

Explanation

How Heating cost calculator works

The heating cost calculator determines the energy amount and heating costs for different energy sources - either from measured consumption or from living area and specific consumption. An optional comparison shows the saving of a second scenario.

Energy and heat

Final energyVerbrauch oder Wohnfläche × spezifischer Verbrauch

The energy drawn from the grid or tank and billed.

Usable heatEndenergie × Wirkungsgrad bzw. JAZ

For heat pumps, the SCOP delivers a multiple of the electricity used.

Costs

Total costsEndenergie × Arbeitspreis + Grundpreis

Per billing period, then normalised to a month and a year.

Practice

Practical examples

Gas heating with known consumption

15,000 kWh gas consumption per year, EUR 0.11/kWh unit price, EUR 120 base price, 12 months, 90 m2 living area.

Result: Energy costs of EUR 1,650 plus EUR 120 base price give EUR 1,770 per year, around EUR 147.50 per month and about EUR 19.67 per m2 and year.

Estimate via living area

100 m2 living area, specific consumption of 140 kWh per m2 and year, EUR 0.10/kWh, EUR 100 base price, 12 months.

Result: 14,000 kWh of final energy, energy costs of EUR 1,400 plus EUR 100 give EUR 1,500 per year, around EUR 15.00 per m2 and year.

Notes

Common mistakes

  • Consumption and price in different units

    A kWh consumption is combined with a per-litre price.

    State consumption and price in the same unit (kWh, litres, m3 or kg).

  • Base price forgotten

    Only the energy costs are calculated.

    Add the consumption-independent base price per period.

  • SCOP confused with efficiency

    For a heat pump an efficiency below 1 is entered.

    For heat pumps use the seasonal coefficient of performance (usually 2.5-4.5).

FAQ

Frequently asked questions

Which input paths does the heating cost calculator offer?

You either enter the known final energy consumption directly or estimate it from living area and specific consumption per m2 and year.

Which energy sources are covered?

Gas, heating oil, district heating, heat pump or electricity, pellets and a free entry. You choose the matching unit and price.

Are current energy prices stored?

No. No up-to-date energy prices are assumed. All unit and base prices are user inputs.

What is the usable amount of heat?

It is the final energy multiplied by the efficiency or the seasonal coefficient of performance. For a heat pump with an SCOP of 3.5, one kWh of electricity delivers around 3.5 kWh of heat.

What does the base price stand for?

The base price is the consumption-independent part, for example for meter rental or provision. It is added to the energy costs per billing period.

Why is the billing period important?

It determines the length to which consumption and base price refer. The calculator then normalises the costs to a month and a year.

When do I need the efficiency or SCOP?

When you want to see the actually usable heat and compare energy sources. For pure costs from measured final energy consumption, the entry is optional.

What does the consumption per m2 tell me?

It makes buildings of different sizes comparable and gives an indication of energy quality. Values depend heavily on insulation, year of construction and use.

How does the scenario comparison work?

You enter a second scenario with its own energy source, price and consumption. The calculator shows the absolute and relative saving compared with the first scenario.

Is this a heating-cost statement?

No. The consumption-based allocation under the Heating Costs Ordinance (Heizkostenverordnung) in a multi-family building is not reflected. The calculator considers the costs of a single unit.

Are the results binding?

No. They are orientation based on your entries; real costs depend on consumption, price and the statement.

Limits

Limitations

  • All prices are user inputs; no current energy prices are assumed.
  • The consumption-based allocation under the Heating Costs Ordinance in a multi-family building is not reflected.
  • No binding cost commitment; the supplier's statement is decisive.

Sources

Sources and references

  • Verordnung über Heizkostenabrechnung (HeizkostenV)Bundesministerium der Justiz / Bundesamt für Justiz

    Official basis for the consumption-based allocation of heating and hot-water costs.

    View source
  • Betriebskostenverordnung (BetrKV)Bundesministerium der Justiz / Bundesamt für Justiz

    Official list of the allocable types of operating costs as the basis of the service-charge items.

    View source
  • § 556 BGB – Vereinbarungen über BetriebskostenBundesministerium der Justiz / Bundesamt für Justiz

    Official basis for allocating operating and service charges in residential tenancies.

    View source