ganak.appElectricity Bill Calculator
Free electricity bill calculator for India with approximate state-wise tariff slabs (FY 2024-25) for 19 states. Enter units consumed or select appliances to get an indicative bill breakdown with energy charges, fixed charges, electricity duty, and fuel surcharge. Actual bills vary by DISCOM. Supports domestic and commercial connections for Maharashtra, Delhi, Tamil Nadu, UP, Karnataka, Kerala, and more.
Indicative estimate based on FY 2024-25 rates. Actual bill may vary by DISCOM.
Bill Summary
Monthly, daily, and annual cost overview
Slab-wise Breakdown
Maharashtra domestic tariff rates (FY 2024-25, approximate)
| Slab (Units) | Rate | Units | Amount |
|---|---|---|---|
| 0–100 | ₹4.71 | 100 | ₹471 |
| 100–300 | ₹7.88 | 200 | ₹1,576 |
How Electricity Billing Works in India
Understanding your electricity bill components
Electricity bills in India are regulated by State Electricity Regulatory Commissions (SERCs). Each state sets its own tariff rates, which is why your bill varies significantly depending on where you live.
Your bill typically has four components:
Energy Charges
Calculated based on units (kWh) consumed using a slab-based progressive rate structure. Higher consumption means higher per-unit cost.
Fixed/Demand Charges
A monthly charge based on your sanctioned/connected load (in kW), regardless of consumption.
Electricity Duty
A state-level tax (typically 5–16%) levied on the energy and fixed charges.
Fuel Surcharge
Some states levy an additional charge to cover fuel cost variations for power generation.
Maharashtra Domestic Tariff Slabs
Approximate FY 2024-25 rates — actual rates vary by DISCOM
| Consumption Slab | Rate (₹/unit) |
|---|---|
| 0–100 units | ₹4.71 |
| 100–300 units | ₹7.88 |
| 300–500 units | ₹10.29 |
| 500–above units | ₹12.54 |
Rates are approximate and based on publicly available SERC tariff orders for FY 2024-25. Actual bills vary by DISCOM, connection type, subsidy, and billing cycle. For exact figures, refer to your local electricity board's latest tariff schedule.
Electricity Bill Calculation Formula
Step-by-step calculation method
1. Units consumed = Current Reading − Previous Reading
2. Energy Charges = Sum of (units in each slab × slab rate)
3. Fixed Charges = Connected Load (kW) × Fixed Rate
4. Electricity Duty = (Energy + Fixed) × Duty %
5. Fuel Surcharge = Energy Charges × Surcharge %
Total Bill = Energy + Fixed + Duty + Surcharge
Example: For 300 units in Maharashtra (domestic):
- 0–100 units: 100 × ₹4.71 = ₹471
- 100–300 units: 200 × ₹7.88 = ₹1576
How to Reduce Your Electricity Bill
Practical tips to lower consumption and save money
Use BEE Star-Rated Appliances
5-star ACs use 25-30% less electricity than 3-star models. A 5-star 1.5 ton inverter AC can save ₹3,000–5,000/year.
Switch to BLDC Fans
BLDC fans consume 28-35W vs 75W for regular fans. With 4 fans running 10 hours, you save ~50 units/month.
Optimize AC Usage
Set temperature to 24°C (each degree lower = 6% more power). Use timer and clean filters monthly for 10-15% efficiency gain.
Solar Rooftop
A 3kW rooftop solar system can offset 350-400 units/month. PM Surya Ghar provides 60% subsidy for the first 2kW and 30% for additional capacity up to 3kW.
Frequently Asked Questions
Common questions about electricity bills in India