⚡ Energy Management
Appliance Energy Usage Calculator
Calculate energy consumption and cost for household and office appliances.
📊 Base Appliance
Appliance Name
Power Rating
W
Daily Usage
h
Hours used per day
Days Per Week
💰 Cost Settings
Electricity Rate
$
/kWh
➕ Additional Appliances
Energy
0
Total Monthly Energy
0 kWh
all appliances
Daily Energy
0 kWh
Monthly Energy
0 kWh
Daily Cost
$0
Monthly Cost
$0
📊 Energy Breakdown
| Appliance | Power (W) | Daily (kWh) | Monthly (kWh) | Cost ($) |
|---|
How the formula works
Daily Energy (kWh) = Power (W) × Hours ÷ 1000 | Monthly Energy = Daily × 30.4
- Power Rating = Appliance wattage (W)
- Daily Usage = Hours used per day
- Daily Energy = Power × Hours ÷ 1000 (kWh)
- Monthly Energy = Daily Energy × 30.4 (avg days/month)
- Cost = Energy × Electricity Rate
- Standby Power = Many appliances consume power even when off
- Energy Star = More efficient appliances use less energy