Weekly electricity use
Active appliance use compared with standby electricity use.
kWh/week
Home Energy Use Calculator
Choose a common appliance or enter your own wattage, then estimate weekly, monthly, and annual electricity use and cost.
Estimated annual cost£146585 kWh/year
Monthly cost£12.19Average across the year
Weekly electricity use11.3 kWh2,500 W active power
Cost by period
Estimated electricity cost using the selected unit rate.
Cost
Usage Estimate
ApplianceTumble dryer
Power rating usedSelected appliance preset2,500 W
Active use3 uses per week4.5 hrs/week
Active electricity11.3 kWh/week
Standby electricity0 kWh/week
Cost Estimate
Electricity unit rate25p/kWh
Weekly cost£2.81
Monthly cost£12.19
Annual cost£146
Annual electricity use585 kWh
Assumptions
Calculation notes
- Appliance presets are broad wattage assumptions. Check the rating plate, smart plug, manual, or energy label for a better figure.
- Some appliances cycle on and off, so rated watts can overstate continuous consumption.
- Standing charges, gas usage, battery storage, solar export, time-of-use tariffs, and seasonal behaviour are not included.
- Use this as a household budgeting estimate, not a formal energy audit.
Guide
How to use the Home Energy Use Calculator
Choose a common appliance or enter your own wattage, then estimate weekly, monthly, and annual electricity use and cost. It is useful for screening property costs, affordability, yield, or renovation assumptions because it keeps inputs, charted outputs, notes, and related next steps on the same page.
Start by checking appliance, power rating override, hours per use, uses per week, electricity unit rate, and standby power. The results update as assumptions change, so you can compare scenarios before downloading a CSV report.
Inputs
Inputs to check
- Appliance: Choose the option that best matches the case you are modelling.
- Power rating override: Leave at 0 to use the selected appliance preset.
- Hours per use: Enter the value hours you want to test.
- Uses per week: Enter the value you want to test.
- Electricity unit rate: Enter the value p/kWh you want to test.
- Standby power: Enter the value watts you want to test.
FAQs
Home Energy Use Calculator FAQs
What is the Home Energy Use Calculator for?
Choose a common appliance or enter your own wattage, then estimate weekly, monthly, and annual electricity use and cost. Use it when you want a quick, editable estimate with charted results and visible assumptions.
Which assumptions should I check first?
Start with appliance, power rating override, hours per use, uses per week, electricity unit rate, and standby power. Then review the calculation notes for anything the tool does not include.
Are the results exact?
The result is a planning estimate, not mortgage, tax, surveying, or legal advice. Confirm important property decisions with a lender, conveyancer, adviser, or official guidance.
Can I keep or compare the result?
Yes. Use the Download CSV button on the calculator page to export the current inputs, headline results, detailed rows, chart data, insights, and notes.
What should I try next?
Try Home Improvement Value Calculator, Renovation Budget Calculator, and Northern Ireland Rates Calculator next. These tools are linked because they use related assumptions or answer the next practical question.