Electricity Bill Calculator
Calculate your monthly electricity bill with state-wise slab tariffs for Karnataka, Maharashtra, Delhi, Tamil Nadu, and more.
BESCOM - First 30 units free (BPL households). Rates effective Apr 2024.
Estimated Monthly Bill
₹1,127
200 units - Avg ₹5.63/unit
Bill breakdown
Monthly bill
₹1,127
Quarterly
₹3,381
Annual estimate
₹13,524
Tips to reduce your bill
- - Switch to 5-star BEE-rated appliances - they use 30-50% less electricity
- - Use LED bulbs (7W LED = 60W incandescent in brightness)
- - Set AC to 24-26 degrees C - each degree below 24 increases consumption ~6%
- - Avoid peak hours (6-10 PM) if your DISCOM has time-of-use tariffs
- - A 1kW solar rooftop panel generates ~100-120 units/month in India
Rates are approximate and may vary by consumer category, load sanctioned, and recent tariff orders. Check your DISCOM website or latest electricity bill for exact rates. Electricity duty and other levies vary by state.
About the Electricity Bill Calculator
Electricity bills in India use a slab-based tariff system where higher consumption is charged at progressively higher rates. This means consuming 201 units costs disproportionately more than 200 units because you cross into a higher slab. Understanding your state's tariff structure - and how close you are to the next slab threshold - helps you make informed decisions about appliance use, solar installation, and energy efficiency investments.
Electricity Bill Calculation
Energy Charge = Sum of (Units in each slab x slab rate) | Total Bill = Energy Charge + Fixed Charge + Meter Rent + Electricity Duty
Slabs are cumulative ranges - each range is charged at that slab's rate, not all units at the highest slab rate | Electricity Duty = 5-16% depending on state
Worked Example
Karnataka (BESCOM): 250 units consumed
0-30 units: free | 31-100 units: 70 x 4.90 = 343 | 101-200 units: 100 x 6.80 = 680 | 201-250 units: 50 x 7.95 = 397.50 | Fixed charge: 50 | Energy total: ~1,470 | With duty: ~1,560
Tips & Insights
- 1
Air conditioning is typically 50-70% of a household's electricity bill in summer. A 5-star 1.5-ton split AC uses ~900 units in 5 months vs 1,400 units for a 2-star.
- 2
Setting your AC to 24 degrees instead of 20 degrees saves ~24% energy. The BEE recommends 24 degrees as the ideal setting.
- 3
LED bulbs use 75-80% less energy than incandescent bulbs and last 25 times longer. Replacing 10 bulbs saves 80-100 units/month.
- 4
Refrigerators run 24x7. An old 5-star fridge from 2005 may use 50% more power than a current 5-star model due to improved compressor technology.
- 5
Solar rooftop panels generate 90-120 units/kW/month. A 3 kW system in Karnataka can offset 270-360 units - enough to stay in the free/subsidized slab.
- 6
Check your discom's net metering policy: exported units (excess solar) are credited at buy-back rate (typically 50-75% of retail rate).
Why this matters for you
India has 300 million electricity connections. For a middle-class household spending 2,000-5,000/month on electricity, a 20% reduction saves 25,000-60,000 over 5 years. Knowing which slab you are in and how close you are to the next threshold creates actionable motivation - running the washing machine at night instead of afternoon, adjusting the AC by 2 degrees, or investing in solar. This calculator turns an opaque bill into a transparent, manageable expense.