Electricity Unit Calculation Formula

• E = P × t ÷ 1000
  Where:
• E = Energy consumed in kilowatt-hours (kWh or units).
• P = Power of the appliance in watts.
• t = Time the appliance is used (in hours).

Step-by-Step Guide to Calculate Units

• Find the Appliance's Wattage:

• Check the power rating (in watts) on the appliance label or manual.

• Determine Usage Duration:

• Note how many hours a day the appliance is used.

• Apply the Formula:

• Multiply the appliance's wattage by its daily usage in hours.
• Divide by 1,000 to convert watts into kilowatt-hours (units).

Example Calculation

Appliance: 100-watt ceiling fan
Daily Usage: 5 hours

• Daily Units = (100 × 5) ÷ 1000 = 0.5 units
• Monthly Units = 0.5 × 30 = 15 units

Cost Per Unit

To calculate the total cost, use:
- Total Cost = Units Consumed × Rate per Unit

Example:
- Units consumed = 15
- Rate per unit =5

Total Cost = 15 ×5 =75

Cost Per Unit Production Formula

To calculate how much each unit costs to produce:
- Cost per Unit = (Total Fixed Costs + Total Variable Costs) ÷ Total Units Produced

Key Tips

• For multiple appliances, calculate the units for each appliance separately and sum them up.
• Use a smart meter or online calculator for accurate tracking.
• Factor in local tariff slabs to calculate costs for higher usage levels.

By using these methods, you can monitor your electricity consumption and optimize your energy usage effectively!

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