Energy Consumption Formula:
From: | To: |
Energy consumption refers to the amount of electrical energy used by a device or appliance over a specific period of time, typically measured in kilowatt-hours (kWh).
The calculator uses the energy consumption formula:
Where:
Explanation: This formula calculates the total energy consumed by multiplying the power rating of the device by the time it's used, then converting to kilowatt-hours.
Details: Calculating energy consumption helps in understanding electricity usage patterns, estimating electricity costs, and identifying opportunities for energy efficiency improvements.
Tips: Enter the power rating of your device in watts and the duration of usage in hours. Both values must be non-negative numbers.
Q1: What's the difference between watts and kilowatt-hours?
A: Watts measure power (rate of energy use), while kilowatt-hours measure energy consumption (power × time).
Q2: How accurate is this calculation for real-world usage?
A: This provides a theoretical maximum. Actual consumption may vary based on device efficiency, usage patterns, and power fluctuations.
Q3: Can I use this for multiple devices?
A: Yes, calculate each device separately and sum the results for total consumption.
Q4: How does this relate to my electricity bill?
A: Electricity bills are typically based on kilowatt-hour usage. Multiply your consumption by your electricity rate to estimate costs.
Q5: What's a typical power consumption for household appliances?
A: It varies widely - LED bulbs (5-15W), refrigerators (100-800W), microwaves (600-1200W), air conditioners (1000-5000W).