Fridge
around 1-2 kWh/day
Country-aware electricity planning
Electricity Budget Calculator
Set your target bill. See how many kWh you can use in your country.
We estimate your monthly and daily electricity limit using average household electricity prices.
Eurostat, EIA and Ofgem data
Country-aware estimate
No login required
Calculator
Turn a monthly bill target into a daily kWh limit
Your allowance
Calculating...
Monthly kWh allowance
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Daily kWh allowance
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Average hourly limit
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Enter a monthly target to see how strict it is.
What does this mean?
What your daily kWh limit can cover
Hourly appliances can quickly use a daily budget. Compare these examples with your calculated daily allowance.
Daily background loads
Hot water tank
around 3-8 kWh/day
Per-use loads
Washing machine
around 0.5-1.5 kWh/use
Tumble dryer
around 1.5-3 kWh/use
Dishwasher
around 0.8-1.5 kWh/use
Hourly loads
Laptop
around 0.05-0.1 kWh/hour
Electric heater
around 1-2 kWh/hour
Oven
around 1-2.5 kWh/hour
Personalized advice
Actions that match your target
Smart savings plan
Your recommendations update with the calculator.
Advice gets sharper with home details or last month’s kWh.
Estimated profile
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Daily gap
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Priority actions
About this project
Why this calculator exists
This is a student project built to make electricity costs easier to understand. Many people know the bill amount they want to stay under, but not what that means in daily kWh usage.
Energy and resource management are increasingly important as households face changing prices, sustainability goals, and uncertainty in energy markets. Political and economic events can influence both electricity costs and supply reliability.
The project focuses on practical awareness: turning a bill target into a daily kWh limit, then connecting that limit to heating, hot water, appliances, and everyday routines.
It is not meant to replace provider advice or exact tariff calculations. The aim is to give users a clearer starting point for understanding their consumption and making more informed choices.
FAQ
Common questions
What is a kWh?
A kilowatt-hour is a unit of energy. Using a 1,000 watt appliance for one hour consumes about 1 kWh.
Is this an exact electricity bill calculation?
No. It converts your target bill into an estimated usage allowance using an average household electricity price.
Why can my real bill be different?
Your provider, contract, taxes, fixed charges, region, meter type, and time-of-use pricing can all change the final bill.
Does this include taxes?
The local data can include typical household taxes where reflected in the average price note, but real tax treatment varies by tariff.
How often are prices updated?
The included data has an update year in the price file. Replace the values in prices.json when you have newer public averages.
How can I reduce electricity consumption?
Heating, hot water, tumble drying, old refrigeration, and inefficient lighting are common places to start.
Privacy
Privacy and data use
The calculator runs in your browser. It does not create an account, use a database, or store your calculator inputs on this website.
Country-level location may be used to select a default electricity price. On Cloudflare Pages, this is provided by Cloudflare from the request metadata, such as the visitor country code.
Cloudflare may process technical data, such as IP address and request logs, as part of normal hosting, security, and website delivery.
The feedback form is hosted by Google Forms. If you choose to submit feedback, the information you provide is handled by Google Forms and may be subject to Google’s privacy practices.
Future advertising features, such as Google AdSense, may require cookie consent or additional privacy controls before being enabled for visitors in regions where consent is required.
Disclaimer
This tool uses average household electricity prices by country. Your real tariff may vary depending on your provider, contract, taxes, region, and time of use.
The calculator itself does not store your inputs or require personal information. Country-level location may be used to select a default electricity price, and hosting or security providers may process technical data as part of normal website delivery.