Electricity Bill Calculator India

Calculate your exact home electricity bills and understand the true running cost of every appliance in your house.

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Helping Indian homeowners make smarter energy decisions

What is Bijli Guide?

Understanding your monthly electricity bill can feel complicated. Between varying state tariffs, confusing fixed charges, and the mystery of which appliance is causing the spike, many Indian households end up paying more than they should.

Bijli Guide is your completely free, independent resource to calculate and understand your home electricity usage. We break down the complex math into simple, beginner-friendly calculators and detailed appliance cost guides.

Whether you want to know how much your 1.5-ton AC costs per night, or if upgrading to a 5-star refrigerator is worth the investment, we provide the exact formulas and practical examples you need.

Watts to kWh to Rupees explanation infographic

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Electricity Bill Calculator

Enter your total units consumed to estimate your final monthly bill including standard charges.

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Appliance Cost Calculator

Find out exactly how much a single appliance costs to run per month based on its wattage.

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AC Electricity Calculator

Specialized calculator for air conditioners. Compare inverter vs. non-inverter and star ratings.

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Watts to Units Calculator

Quickly convert any appliance wattage into standard electrical units (kWh).

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How Electricity Bill Calculation Works

Your electricity bill is measured in Units. One unit of electricity is equal to 1 Kilowatt-hour (kWh).

To find out how many units an appliance consumes, you need three pieces of information:

The appliance's wattage (W)
Hours used per day
Number of days used per month

The Universal Formula

Units (kWh) = (Watts × Hours per day × Days) ÷ 1000

Example Calculation: Ceiling Fan

Let's say you have a standard 75-watt ceiling fan running for 10 hours a day for a full 30-day month.

Watts = 75W
Hours = 10
Days = 30

Calculation: (75 × 10 × 30) ÷ 1000 = 22.5 Units

If your state electricity rate is ₹8 per unit, the cost to run that fan for a month is: 22.5 units × ₹8 = ₹180.

Monthly Appliance Electricity Consumption Chart

A quick reference guide for common Indian home appliances.

Home appliances electricity consumption overview

Appliance	Typical Wattage	Est. Hours/Day	Est. Units/Month
1.5 Ton AC (Inverter)	1200W - 1500W	8 hours	120 - 150 Units
Electric Geyser (15L)	2000W	1 hour	60 Units
Double Door Fridge (3 Star)	250W (cycles)	24 hours	35 - 45 Units
Normal Ceiling Fan	75W	12 hours	27 Units
BLDC Ceiling Fan	28W	12 hours	10 Units
LED Tube Light	20W	6 hours	3.6 Units

Why Your Electricity Bill May Be High

If you're shocked by your monthly bill, here are the most common culprits:

Air Conditioners: ACs are the biggest electricity consumers. Running a non-inverter AC all night can add over ₹2,000 to your monthly bill alone.
Geyser Usage: Leaving a 2000W geyser switched on for long periods wastes massive amounts of energy to reheat water.
Old Appliances: A 10-year-old refrigerator consumes nearly double the power of a modern 5-star inverter fridge.
Higher Tariff Slabs: In India, tariffs are progressive. If you consume 300 units, your rate might be ₹6/unit. If you consume 501 units, your rate for the top tier might jump to ₹12/unit.

Read our tips to reduce electricity bills →

Understanding BEE Star Ratings

The Bureau of Energy Efficiency (BEE) India assigns star ratings to major appliances to indicate their power efficiency. Ratings range from 1 to 5 stars.

Is a 5-star rating worth it? Generally, yes. A 5-star appliance is highly optimized. For heavy appliances like ACs and refrigerators that run for many hours, the electricity saved by a 5-star model will easily pay for its higher upfront cost within a couple of years.

Learn how to compare BEE labels

State-Wise Electricity Bill Calculators

Electricity rates vary heavily by state, distribution company (DISCOM), and consumer category. Select your state to calculate your exact bill based on local tariff slabs.

Maharashtra (MSEDCL) Delhi (BSES/NDMC) Uttar Pradesh (UPPCL) All State Guides

Frequently Asked Questions

What is the formula to calculate electricity bill?

To calculate your electricity bill, multiply your appliance's wattage by the hours used per day to get daily watt-hours. Divide by 1000 to get daily kWh (units). Multiply this by the number of days, and then multiply the total units by your state's electricity rate per unit.

How many units is 1 kWh?

1 kWh (Kilowatt-hour) is exactly equal to 1 unit of electricity on your bill.

Why is my electricity bill so high?

High electricity bills are usually caused by heavy usage of high-wattage appliances like air conditioners, geysers, or old refrigerators. Moving into a higher tariff slab also increases the cost per unit.

How can I reduce my electricity bill at home?

You can reduce your electricity bill by setting your AC to 24°C, switching to 5-star rated inverter appliances, using LED bulbs, unplugging idle electronics, and replacing old fans with BLDC energy-saving fans.

Does keeping the AC at 24 degrees save electricity?

Yes, keeping your AC at 24 degrees instead of 18 degrees can save up to 24% on your AC electricity consumption, as the compressor works less to maintain the temperature.

What consumes the most electricity in a home?

Air conditioners and electric water heaters (geysers) consume the most electricity due to their high wattage and frequent usage.

Is a 5-star appliance worth the extra cost?

Yes, 5-star appliances save significantly more electricity over their lifespan compared to 3-star models. The energy savings usually recover the extra initial cost within 1 to 2 years.

How much electricity does a ceiling fan consume?

A standard old ceiling fan consumes about 75 watts. If run for 12 hours a day, it uses about 27 units per month. A BLDC fan only consumes 28-30 watts, saving more than half the electricity.

How do I read my state electricity bill?

Look for 'Units Consumed' (kWh). This is the base of your bill. You will also see 'Fixed Charges' (a base fee based on your sanctioned load) and 'Electricity Duty/Taxes' added to the total cost.

What is a BLDC fan?

BLDC stands for Brushless Direct Current. BLDC fans use a specialized motor that consumes 50-60% less electricity than normal induction motor ceiling fans, without reducing air delivery.

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