Free OnlineCalculators & Converters
Electricity Cost Calculator
Calculate electricity costs for appliances and devices. Estimate power consumption and monthly energy bills easily.
electricity cost calculatorpower consumption calculatorenergy costelectricity bill calculatorkwh calculator
US average: ~$0.12/kWh
Appliances
Quick Add:
Daily Cost
$1.87
Monthly Cost
$56.16
Yearly Cost
$683.28
kWh / Month
468.0
Cost Breakdown
| Appliance | kWh/mo | Daily | Monthly | Yearly |
|---|---|---|---|---|
| Air Conditioner | 360.0 | $1.44 | $43.20 | $525.60 |
| Refrigerator | 108.0 | $0.43 | $12.96 | $157.68 |
| Total | 468.0 | $1.87 | $56.16 | $683.28 |
Monthly Cost Share
Air Conditioner
76.9%
Refrigerator
23.1%
Key Features — Electricity Cost Calculator
Calculate cost from watts and usage hours
Daily, monthly, and yearly cost projections
Multiple appliance comparison
Custom electricity rate input
kWh consumption breakdown
Why Use This Tool — Electricity Cost Calculator
Free Online Electricity cost calculatorPower consumption calculator — for EveryoneFast & Easy Energy costElectricity bill calculator — 100% FreeFree Online Kwh calculator
Privacy First
All processing happens in your browser. Your data never leaves your device.
Lightning Fast
Get instant results with zero wait time. No server delays, no loading screens.
Works Everywhere
Use on any device — desktop, tablet, or phone. No downloads or plugins needed.
Frequently Asked Questions — Electricity Cost Calculator
How is electricity cost calculated?
Multiply the device wattage by hours of use to get watt-hours. Divide by 1000 to get kilowatt-hours (kWh). Multiply kWh by your electricity rate per kWh. For example, a 100W bulb running 10 hours uses 1 kWh. At $0.12 per kWh, that costs $0.12 per day.
Where can I find my electricity rate?
Check your electricity bill for the rate per kWh, which is usually listed as a line item. The average US residential rate is around $0.12-0.16 per kWh, but it varies by state and provider. The calculator lets you enter your exact rate for accurate cost estimates.
How much electricity does a typical household use?
The average US household uses about 900 kWh per month. Major consumers are heating/cooling (40-50%), water heating (15-20%), appliances like refrigerators and washers (15-20%), and lighting and electronics (10-15%). The calculator helps identify which devices cost the most.