Calculate Your Exact Electricity Bill Instantly
Free, accurate electricity bill calculator for all 28 States + 8 Union Territories. Slab-wise breakdown, fixed charges, subsidies & solar insights — no login needed.
Everything You Need to Understand Your Bill
Accurate, comprehensive, and completely free electricity bill calculation for every Indian home and business.
Instant Results
No login required. Get your accurate bill calculation in under 3 seconds, entirely in your browser.
All India Coverage
All 28 States + 8 Union Territories with accurate, quarterly-updated tariff data from official SERC orders.
Detailed Breakdown
Slab-wise calculation with fixed charges, fuel surcharge, electricity duty, meter rent, and all subsidies.
Solar Insights
Personalised energy-saving tips, solar feasibility check, and PM Surya Ghar Yojana subsidy details.
How It Works
Three simple steps to calculate your electricity bill — no forms, no login, no waiting.
Select Your State
Choose from all 28 states and 8 UTs. We automatically load the correct electricity board and latest tariff rates.
Enter Units Consumed
Input your meter reading or estimated monthly consumption in kWh units from your electricity bill.
Get Instant Bill Estimate
View your complete bill with slab-wise breakdown, all charges, applicable subsidies, and energy-saving insights.
State-Wise Electricity Bill Calculator
Quick access to the most popular state electricity bill calculators with the latest 2026 tariff rates.
Built on Accuracy & Privacy
Every tariff is verified from official electricity board notifications. Your data stays private — always.
Accurate Data
Tariff rates updated quarterly from official State Electricity Regulatory Commission (SERC) notifications and orders.
100% Free Forever
No hidden charges, no premium plans, no subscriptions. Our calculator is free for all Indian consumers, forever.
Privacy First
We never store your consumption data. All calculations happen locally in your browser — complete privacy guaranteed.
Works Everywhere
Fully responsive on mobile, tablet, and desktop. Works on Chrome, Firefox, Safari. No app download needed.
Frequently Asked Questions
Common questions about electricity bills and how our calculator works.
Electricity bill in India is calculated based on several components:
- Energy Charges: Based on progressive slab rates. E.g., 0–100 units @ ₹3.50, 101–200 units @ ₹4.50 per unit
- Fixed Charges: Based on your sanctioned load (kW), charged monthly regardless of usage
- Fuel Adjustment Charges (FAC): Variable charge linked to fuel costs — differs by state
- Electricity Duty: State tax, usually 5–8% of energy charges
- Meter Rent: Fixed monthly charge for your electricity meter
- Subsidies: E.g., free up to 100 units in Tamil Nadu; 50% subsidy in Delhi up to 200 units
Electricity slabs are consumption tiers with different per-unit rates. India uses a progressive system — only the units within each slab are charged at that rate. Example for Tamil Nadu residential:
- 0–100 units: Free (₹0/unit) — due to subsidy
- 101–200 units: ₹1.50/unit
- 201–500 units: ₹3.00/unit
- 501–1000 units: ₹5.00/unit
- Above 1000 units: ₹7.00/unit
Higher consumption only increases the rate for units within that higher slab — not all units consumed.
Top 5 proven ways to reduce your electricity bill:
- Use 5-star rated appliances: They consume 30–40% less energy than 1-star equivalents
- Switch to LED bulbs: Replace 10 conventional bulbs to save ₹150–300 per month
- Set AC to 24°C: BEE recommended temperature. Every degree lower increases consumption by ~6%
- Unplug standby devices: Standby power can account for 5–10% of your total bill
- Consider rooftop solar: ROI in 4–5 years with PM Surya Ghar Yojana offering up to ₹78,000 subsidy
Subsidies vary significantly by state. Key examples:
- Tamil Nadu: First 100 units free for all domestic consumers monthly
- Delhi: 50% subsidy up to 200 units per month
- Punjab: Free electricity up to 300 units for SC/BC families
- Karnataka: Free up to 30 units for BPL consumers
- Bihar: First 125 units free for domestic consumers per month
Select your state in our calculator — it automatically applies all eligible subsidies to your estimate.
BillUnits.in calculates your bill directly from your state’s official tariff structure. We ensure reliable estimates by:
- Updating tariff data quarterly from official SERC tariff orders
- Including all bill components: energy charges, fixed charges, FAC, electricity duty, meter rent, and subsidies
- Checking calculations against sample real bills from major states before each update
- Providing complete slab-by-slab breakdown so you can verify each charge yourself
Minor differences (1–3%) may occur due to rounding or mid-period tariff revisions. Always refer to your official DISCOM bill for payment purposes.
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