Electricity Bill Calculator
Estimate your monthly bill from your units consumed — useful for budgeting before your official bill arrives.
FPA changes almost every month. Check the tariff table on your last bill, or leave this at 0 for a base-rate-only estimate.
How a Pakistani electricity bill is calculated
Domestic electricity in Pakistan is billed in slabs. NEPRA sets the rate for each slab, and those rates are the same across every distribution company — your DISCO does not set them, which is why the arithmetic here works regardless of who supplies you.
The rule that catches most households out is the protected-consumer threshold. Stay at or under 200 units in a billing month and you are billed on the protected table. Cross 200 units in a single month and the whole month moves to the unprotected table — not just the units above the line. That is why the gap between a 199-unit bill and a 201-unit bill is far larger than two units of electricity could explain.
| Units | Per unit |
|---|---|
| 1–100 | Rs 10.54 |
| 101–200 | Rs 13.01 |
| Units | Per unit |
|---|---|
| 1–100 | Rs 22.44 |
| 101–200 | Rs 28.91 |
| 201–300 | Rs 33.10 |
| 301–400 | Rs 36.46 |
| 401–500 | Rs 38.95 |
| 501–600 | Rs 40.22 |
| 601–700 | Rs 41.85 |
| 701+ | Rs 47.20 |
Rates compiled from publicly reported NEPRA notifications and used by the calculator above. They are representative for budgeting rather than a live feed — NEPRA revises FPA monthly and base rates periodically.
What else appears on the bill besides units
Energy charges are only part of the total. The rest is made up of adjustments and fixed items, and these are usually where an unexplained increase actually comes from:
- FPA (Fuel Price Adjustment) — reviewed by NEPRA on a near-monthly basis, reflecting the actual cost of fuel used for generation one to two billing cycles earlier. If your bill rose without your usage changing, this line is the most common explanation.
- GST at 17%, applied to energy charges and FPA combined.
- PTV licence fee of Rs 35 per month, collected through the electricity bill rather than separately.
- Meter rent and fixed charges of roughly Rs 100 per month, depending on connection type.
This is an estimate, not your bill
The calculator is for budgeting. FPA changes every month, some districts add local charges, and commercial and industrial tariffs work differently. Always take the exact amount from your official bill.
Using this to check a bill you think is wrong
The most useful thing an estimate can do is tell you whether a bill is implausible or merely unwelcome. Work in this order. Take the units from your bill — not your guess at them — and put them in above. If the figure that comes back is close to your energy charges, the bill is arithmetically fine and the argument is about the reading, not the rate. If it is far off, the difference is almost always the adjustments rather than the slabs.
- 1
Compare units, not rupees
Find this month's units on the bill and the same month last year. A bill that doubled on units that doubled is working correctly, however unpleasant that is.
- 2
Check the days billed
A cycle of 35 or 38 days produces more units than one of 28 at identical daily use, and can push a household across the 200-unit line. The dates are printed on the bill.
- 3
Look for the estimate marker
An estimated reading followed by an actual one produces one small bill and one large one. The pair should be read together, and the second is not an overcharge if the first was an undercharge.
- 4
Isolate the adjustments
FPA and the quarterly adjustment are separate lines. If they account for the gap, the dispute is with a national adjustment applied to every consumer that month, not with your meter.
A detection bill is a different animal
Arrears raised after the fact for electricity the company believes was used but not billed are not produced by this arithmetic and will not match it. You are entitled to see the basis on which a detection bill was calculated, and that is what to ask for.
Where this estimate will differ from your bill
- The fuel adjustment, which changes monthly and is entered separately above rather than assumed.
- The quarterly tariff adjustment, which lands every three months and is not modelled.
- Provincial electricity duty, a small percentage that varies by province.
- Time-of-use metering, where peak and off-peak hours carry different rates and the total depends on when you consumed rather than only how much.
- Arrears, instalments and any previous-balance line carried forward.
- Commercial, industrial and agricultural tariffs, which are separate schedules — this models domestic supply only.