Calculators

Pick the question you want answered. Every calculator shows how the result is built up, which figures we use and where they come from.

• What does my energy cost per year and per month?Energy bill calculator
• What does my electricity use cost?Electricity cost calculator
• What does my gas use cost?Gas cost calculator
• How much does an appliance use and cost?Appliance electricity calculator
• What do I really pay per kWh or m³?Price per kWh and m³
• How much do I use per year?Annual usage calculator

How reliable are the results?

The calculations themselves are simple and verifiable; the formulas are on every page. The result is only as good as the input. With the rates from your own contract and your actual consumption you will get close to your bill. With CBS averages you get an estimate for an average contract. We only use energy tax rates that have been officially adopted.

All calculations run in your own browser. What you enter is not sent to us or stored. See also the disclaimer.

Content reviewed on 26 September 2026.