Electricity Bill & Appliance Cost Calculator
Calculate energy consumption in kWh and estimated electricity costs per day, month, and year for individual appliances or entire households.
Tariff & Energy Rate Settings
Household Appliances & Devices
Adjust wattage, daily hours, and quantity:
| Appliance | Power (Watts) | Hours / Day | Count | Monthly Cost | Share | |
|---|---|---|---|---|---|---|
| $9.35 | 16.1% | |||||
| $29.20 | 50.2% | |||||
| $6.81 | 11.7% | |||||
| $2.34 | 4% | |||||
| $8.76 | 15.1% | |||||
| $1.75 | 3% |
How is Electricity Consumption Calculated?
The kWh Formula
Energy (kWh) = Power (Watts) × Hours × Days ÷ 1000. A 2,000-Watt heater running for 1 hour consumes exactly 2 kWh of electricity.
Top Household Energy Consumers
Space heating, water heaters, older refrigerators, and tumble dryers account for over 50% of an average home’s annual power consumption.
Vampire / Standby Draw
Devices left on standby (consoles, TVs, chargers) continuously consume phantom power. Smart power strips can save up to $100 annually.
Frequently Asked Questions about Electricity Bills
Common questions regarding power consumption, tariffs, and appliance costs.
Explore More Free Tools on Toolstack
Client-side developer utilities, image converters, calculators, and educational engineering guides.
Word Counter
Count words, characters with/without spaces, sentences, and paragraphs in real time with reading speed metrics.
PDF Compressor
Reduce PDF document file size directly in your browser with zero server uploads.
Image Compressor & Resizer
Batch compress and scale JPG, PNG, and WebP images with custom quality settings.
URL Encoder & Decoder
Encode and decode query strings, special characters, and parameters with RFC 3986 percent-encoding.
JSON Validator & Formatter
Beautify, validate, minify, and auto-fix JSON syntax errors with real-time line/column diagnostics.
HEIC to JPG Converter
Convert Apple iPhone HEIC and HEIF photos to high-quality JPG directly in your browser.