Home
Back
Electricity Consumption Formula:
| From: | To: |
Electricity consumption refers to the amount of electrical energy used by appliances and devices over a specific period. It is typically measured in kilowatt-hours (kWh), which is the standard unit for electricity billing worldwide.
The calculator uses the electricity consumption formula:
Where:
Explanation: This formula converts the power consumption from watts to kilowatts and multiplies by the time in hours to get total energy consumption in kilowatt-hours.
Details: Calculating electricity consumption helps in understanding energy usage patterns, estimating electricity bills, identifying energy-efficient appliances, and reducing overall energy costs and environmental impact.
Tips: Enter the power rating of your appliance in watts and the number of hours it operates. Both values must be positive numbers. The result shows the energy consumption in kilowatt-hours (kWh).
Q1: How do I find the power rating of an appliance?
A: Check the appliance label, manual, or specification sheet. Most appliances display their power consumption in watts (W) or kilowatts (kW).
Q2: What is a typical power consumption for common appliances?
A: LED bulb: 5-15W, Laptop: 50-100W, Refrigerator: 100-400W, Air conditioner: 1000-5000W, depending on size and efficiency.
Q3: How does this relate to my electricity bill?
A: Electricity companies charge per kilowatt-hour (kWh). Multiply your consumption by your electricity rate to estimate costs.
Q4: Can I calculate monthly consumption?
A: Yes, multiply daily consumption by 30, or calculate based on average daily usage patterns.
Q5: 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).