Monthly Energy Consumption Formula:
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Definition: This calculator estimates the monthly electricity consumption in kilowatt-hours (kWh) based on appliance power, daily usage, and quantity.
Purpose: Helps homeowners and renters understand their electricity usage patterns and estimate monthly energy costs.
The calculator uses the formula:
Where:
Explanation: The appliance power is multiplied by daily usage hours and quantity, then scaled to monthly usage and converted to kWh.
Details: Understanding your kWh usage helps with budgeting, energy conservation, and comparing with utility bills.
Tips: Enter the appliance power in watts, daily usage in hours, and quantity of similar appliances. Typical home usage ranges 600-900 kWh/month.
Q1: What's a typical wattage for common appliances?
A: Refrigerator: 150-400W, LED TV: 30-100W, Laptop: 50W, AC: 1000-3500W, Light bulb: 5-100W.
Q2: How can I reduce my monthly kWh usage?
A: Use energy-efficient appliances, turn off unused devices, utilize natural light, and maintain HVAC systems.
Q3: Why multiply by 30 days?
A: This provides a monthly estimate. For exact calculations, use actual days in the billing cycle.
Q4: How do I find my appliance's wattage?
A: Check the label, manual, or use a wattage meter. Some devices show amps and volts (Watts = Amps × Volts).
Q5: Does this include all home energy usage?
A: This calculates for specific appliances. For whole-home usage, sum all major appliances or check your utility meter.