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Electricity Bill Calculator
Calculate monthly electricity bill from units consumed and tariff rate.
⭐ Used by 12,340 people

The Electricity Bill Calculator calculates your monthly electricity bill based on units consumed (kWh) and your tariff rate per unit.

How to Read Your Electricity Meter

  • Check meter reading at start and end of month
  • Units consumed = End reading - Start reading
  • 1 unit = 1 kilowatt-hour (kWh)

Electricity Tariff Rates (India Approx)

StateRate per Unit
Maharashtra₹7-10/unit
Delhi₹3-8/unit
Karnataka₹5-8/unit
Tamil Nadu₹4-8/unit
AP/Telangana₹4-9/unit

Power Consumption of Appliances

AC (1.5 ton): 1.5 units/hour
Refrigerator: 1.5 units/day
Washing Machine: 1 unit/cycle
LED Bulb (9W): 0.009 units/hour
TV (LED 32"): 0.05 units/hour

Tips to Reduce Electricity Bill

  • 💡 Switch to LED bulbs (80% less power)
  • ❄️ Set AC to 24°C (saves 6% per degree)
  • 🔌 Unplug devices when not in use
  • ☀️ Use solar panels for long-term savings
📖 Complete Guide
Formulas, examples, tips & FAQs
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Frequently Asked Questions

How is an electricity bill calculated?

Your bill is based on the number of units (kilowatt-hours) you consume multiplied by the per-unit rate, often with slab rates plus fixed charges and taxes added on top.

What is a unit of electricity?

One unit equals one kilowatt-hour, which is the energy used by a 1000-watt appliance running for one hour. The calculator converts your usage into units to estimate your bill.

How can I lower my electricity bill?

Use energy-efficient LED lights and appliances, switch off devices at the socket, set air conditioners to moderate temperatures, and run heavy appliances during off-peak hours where applicable.