Electricity Bill Calculator — How Much Will You Pay?
Estimate your monthly electricity bill based on units consumed and your state tariff slab. Compare costs across Indian states.
Electricity tariffs in India vary by state and are structured in progressive slabs — the more you consume the higher the rate per unit. A household consuming 200 units/month pays Rs 800-1600 depending on the state. At 500 units the bill jumps to Rs 3000-6000 due to higher slab rates. Understanding your slab structure helps you budget and identify savings opportunities.
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Key Information
| Parameter | Details |
|---|---|
| Average Rate (up to 100 units) | Rs 3-5 per unit |
| Average Rate (100-300 units) | Rs 5-8 per unit |
| Average Rate (300-500 units) | Rs 7-10 per unit |
| Average Rate (500+ units) | Rs 8-12 per unit |
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Use Calculator NowFrequently Asked Questions
How to calculate electricity bill?
Count total units consumed from your meter. Apply slab rates: first 100 units at the lowest rate then next 100 at the second slab and so on. Add fixed charges (Rs 20-100/month) fuel adjustment charges and taxes. Most state discoms have online bill calculators for exact computation.
How to reduce electricity bill?
Switch to LED bulbs (save 75% on lighting). Use 5-star rated AC and refrigerator. Set AC to 24°C (each degree lower costs 3-5% more). Use solar water heater instead of electric geyser. Install rooftop solar (saves 50-80% of bill). Shift heavy appliance use to off-peak hours if time-of-day metering applies.
Which state has cheapest electricity?
Cheapest residential rates: Goa (Rs 1.5-3/unit up to 100 units) Delhi (free up to 200 units) Punjab (Rs 3-5 for low consumption). Costliest: Maharashtra (Rs 4-12/unit with heavy slab progression) Karnataka (Rs 4.5-9/unit). Rates vary significantly based on consumption level and tariff category.
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Last updated: March 2026