Ceiling fan: units per month in Pakistan
Short answer. A typical Pakistani ceiling fan draws about 65 watts, so running one for 16 hours a day costs roughly 1 unit a day and about 31 units a month. Four fans running through a summer is therefore in the region of 100 to 120 units a month — small beside an air conditioner, but the largest single load in a household that has no air conditioner.
Power draw
- Low: 28 W
- Typical: 65 W — the figure used in every calculation below
- High: 100 W
Older heavy-gauge fans sold in Pakistan sit at 80–100 W. Current-generation efficient fans run 45–55 W, and BLDC fans reach 28–35 W at full speed.
Units and cost by usage pattern
Each row is 65 W × the hours shown ÷ 1,000, over 30 days. The three cost columns exist because the rupee cost of a unit depends entirely on which slab your month lands in — the same consumption costs a light user and a heavy summer household very different amounts. Rates are illustrative and not a substitute for the tariff table printed on your own bill.
| Usage pattern | Units / day | Units / month | At Rs 12.5/unit | At Rs 27.5/unit | At Rs 36/unit |
|---|---|---|---|---|---|
| One bedroom fan, summer (16 hours) | 1.04 | 31.2 | Rs 390 | Rs 858 | Rs 1,123 |
| Whole house, four fans averaging 12 hours | 3.12 | 93.6 | Rs 1,170 | Rs 2,574 | Rs 3,370 |
| Year-round in a warm district (10 hours) | 0.65 | 19.5 | Rs 244 | Rs 536 | Rs 702 |
Rate bands: Rs 12.5 — light user, protected (≈150 units/month); Rs 27.5 — average household (≈250 units/month); Rs 36 — heavy summer month (700+ units). This appliance is seasonal — the usage patterns above assume 9 months of the year at most, so the annual figure is lower than twelve times the monthly one.
The old-fan penalty
The gap between a twenty-year-old 95 W fan and a modern 50 W one is 45 watts. Over 16 hours a day for five months that is roughly 108 units a year per fan — and in a house with five old fans, over 500 units annually.
BLDC fans go further, down to around 30 watts, though the price premium is significant and the electronics are less tolerant of the voltage swings common on Pakistani distribution networks.
Regulators: the one that matters
An old resistive regulator does not save electricity when you turn the fan down. It converts the difference into heat inside the regulator itself, so the fan slows and the consumption barely moves.
An electronic or capacitor-type regulator genuinely reduces power draw at lower speeds. Replacing resistive regulators is one of the cheapest efficiency measures available in a Pakistani home, and the old ones are still widely installed.
Fans and air conditioners together
Moving air makes a room feel about 3 °C cooler than it is. That means a ceiling fan running alongside an air conditioner lets you raise the thermostat by two or three degrees for the same comfort.
At 6 to 8 per cent energy saved per degree on the air conditioner, the 65 watts the fan costs buys back several hundred watts of compressor time. Running both is cheaper than running the air conditioner colder.
How to use less
- Replace resistive regulators with electronic ones — the fan speed you already use will then actually cost less.
- Clean the blades. Dust build-up unbalances the blade profile and the motor works harder for less air.
- Run the fan with the air conditioner and set the thermostat three degrees higher.
- Switch fans off in empty rooms. A fan cools people, not air — it does nothing for an unoccupied room.
Frequently asked questions
Does running a fan on low speed save electricity?
Only with an electronic regulator. With the older resistive type the power is dissipated as heat in the regulator instead of the motor, so the saving is negligible even though the fan visibly slows.
Is a BLDC fan worth the price in Pakistan?
In a house running fans sixteen hours a day for five months, the energy saving against an old fan repays the premium in roughly two to three seasons. In a lightly used room it will not.
Compare with
- Pedestal and bracket fans — 70 W typical
- Exhaust fan — 45 W typical
- Air conditioner (1.5 ton, non-inverter) — 1800 W typical
- Air cooler (evaporative) — 190 W typical
Go further
Filed under cooling in the full appliance index. Add your own hours in the consumption calculator, or open your actual bill with the reference number lookup.