Appliance Energy Calculator

Calculate energy consumption and costs of household appliances and devices

Energy Price Setting

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Kitchen Appliances

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Energy Saving Tips

Simple changes that can significantly reduce your electricity consumption

🔌

Unplug Standby Devices

Electronics on standby can consume 5-10% of your total electricity. Use power strips to easily cut standby power.

💡

Switch to LED Lighting

LED bulbs use 75% less energy than traditional bulbs and last 25 times longer.

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Optimize Temperature Settings

Lower heating by 1°C or raise cooling by 1°C to save 5-10% on HVAC costs.

Typical Appliance Power Consumption

Reference guide for common household appliances and their power usage

Kitchen Appliances

Refrigerator150W
Dishwasher1800W
Microwave900W
Electric Oven2400W

Laundry Appliances

Washing Machine2000W
Tumble Dryer3000W
Iron1200W

Electronics Appliances

55" LED TV100W
Desktop Computer300W
Laptop60W
Gaming Console150W

HVAC Appliances

Air Conditioner (2.5kW)2500W
Space Heater1500W
Heat Pump3000W
Electric Radiator1000W

Lighting Appliances

LED Bulb (10W)10W
Halogen Bulb (50W)50W
Fluorescent Light32W
  1. 1

    Find Appliance Wattage

    Check appliance label, manual, or rating plate for wattage. Common UK appliances: Fridge-freezer 150-400W, microwave 800-1000W, TV 50-200W, computer 50-100W, washer/dryer 2000-3000W, kettle 2000-3000W. If only amps listed: Watts = Amps × 230V.

  2. 2

    Estimate Daily Usage Hours

    Track how many hours appliance runs per day. Fridge-freezer: 8-12 hrs (cycles on/off), TV: 3-6 hrs, computer: 4-8 hrs, lights: varies by room, kettle: 0.5-1 hr total. Be realistic - usage habits significantly affect costs.

  3. 3

    Input Electricity Rate

    Enter cost per kWh from your electric bill (usually £0.24-£0.35/kWh depending on tariff). Include all charges (energy + standing charge + VAT) divided by total kWh for true cost. Consider Economy 7 if applicable (cheaper night rate £0.15-£0.25/kWh).

  4. 4

    Check Standby Power

    Many devices use 5-20W when 'off' but plugged in. Measure with plug-in energy monitor or estimate: set-top box 15-30W, game console 10-15W, chargers 3-5W each. Adds up to £80-£150/year per household - use timer switches or smart plugs to eliminate waste.

  5. 5

    Review Annual Costs

    Calculator shows daily, monthly, and annual electricity cost per appliance. Identify top energy users (usually heating, tumble dryer, electric shower, immersion heater). Consider: replacing old inefficient units with A+++ rated models (10-50% savings available), reducing usage hours, upgrading to LED lighting (80% saving vs halogen), or unplugging standby vampires.

Pro Tip: Use Ctrl+Enter to calculate quickly, or Ctrl+R to reset the form.

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