Electricity Bill Calculator

What does the Electricity Bill Calculator do?

Electricity tariffs in Pakistan and many other countries use slabs: the price per unit rises as consumption increases. Tariffs, fuel price adjustments (FPA), quarterly adjustments and taxes change frequently and differ between distribution companies and customer categories, so this calculator lets you enter the current values from your bill or your utility’s website instead of relying on numbers that may be out of date.

“Telescopic” billing charges each slab at its own rate. Untick it for non-telescopic billing, where all units are charged at the rate of the slab your total falls in.

Examples

Slab breakdown

250 units with slabs 100@10, 200@13, 300@16 → 100×10 + 100×13 + 50×16 = 3,100 energy charges before adjustments and taxes.

Common use cases

• Estimating next month’s bill
• Seeing how reducing usage changes your slab
• Comparing appliance running costs
• Checking a bill for errors

Features and benefits

• Private by design — your data is processed on your device and never uploaded.
• Free with no account, no watermark and no usage limits.
• Works on phones, tablets and desktops in any modern browser.

Limitations to know

• Default slabs are placeholders, not real tariffs.
• Protected/non-protected status, peak/off-peak meters, TV fee and other line items vary — add them as fixed charges.