Electricity Bill Calculator

Estimate your electricity bill by entering units. Slab rates are editable — change them to match your state board.


Energy Charge

Fixed Charge

Tax

Total Bill

Note: Rates vary by state — edit the slabs above to match your electricity board.

How to Use Electricity Bill Calculator

  1. Enter the total units consumed (kWh) from your meter reading or last bill.
  2. Edit the slab table if your state board uses different rates — each slab shows the unit range and per‑unit charge.
  3. Set the fixed charge and duty/tax percentage (default 5%).
  4. Click Calculate Bill to see energy charge, fixed charge, tax, total bill, and a per‑slab breakdown showing exactly how each bracket contributed.

Benefits of Electricity Bill Calculator

Frequently Asked Questions

How do I know my state’s slab rates?

Search for your electricity board’s latest tariff order online. Look for the domestic consumer slab chart and copy the unit ranges and rates into the calculator.

Why does my bill jump so much when I cross a certain number of units?

Slab billing means units above a threshold are charged at higher rates. Crossing into the next slab makes those extra units — and only those extra units — more expensive, but the overall average per‑unit cost rises sharply.

What is a fixed charge, and do all states levy it?

A fixed charge is a recurring fee independent of consumption, usually based on sanctioned load. Most state boards apply it; check your bill for the exact amount.

Is Electricity Bill Calculator free and private?

Yes — it is 100% free, needs no sign-up, and everything runs in your browser; your data never leaves your device.

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