Appliance Electricity Cost Calculator
Pick an appliance to load typical wattage and hours of use, then adjust them to match your own. See monthly units, cost per hour and yearly cost.
Updated
Formula
Units = Watts × Quantity × Hours × Days ÷ 1000
Cost = Units × Rate per unit
Presets use typical average running watts; check your appliance's label for a better figure.
Examples
Refrigerator
Refrigerator (average draw): 108 units/month ≈ Rs 5,940
Iron, 30 min/day
Iron: 15 units/month ≈ Rs 825
Desktop computer, 6 h/day
Desktop computer: 36 units/month ≈ Rs 1,980
Reference table
| Appliance | Typical watts | Typical hours/day | Units/month (30 days) |
|---|---|---|---|
| AC 1 ton (non-inverter) | 1,100 | 8 | 264 |
| AC 1.5 ton (non-inverter) | 1,700 | 8 | 408 |
| AC 2 ton (non-inverter) | 2,300 | 8 | 552 |
| AC 1 ton (inverter, average) | 650 | 8 | 156 |
| AC 1.5 ton (inverter, average) | 950 | 8 | 228 |
| AC 2 ton (inverter, average) | 1,300 | 8 | 312 |
| Ceiling fan (AC motor) | 80 | 12 | 28.8 |
| Ceiling fan (DC inverter) | 35 | 12 | 12.6 |
| Pedestal fan | 60 | 8 | 14.4 |
| Air cooler | 200 | 10 | 60 |
| Refrigerator (average draw) | 150 | 24 | 108 |
| Deep freezer (average draw) | 200 | 24 | 144 |
| Microwave oven | 1,200 | 0.5 | 18 |
| Electric kettle | 1,800 | 0.25 | 13.5 |
| LED TV (43–55 inch) | 100 | 5 | 15 |
| Washing machine | 500 | 1 | 15 |
| Iron | 1,000 | 0.5 | 15 |
| Water pump (1 HP) | 750 | 1 | 22.5 |
| Desktop computer | 200 | 6 | 36 |
| Laptop | 60 | 6 | 10.8 |
| LED bulb | 12 | 6 | 2.2 |
| LED tube light | 20 | 6 | 3.6 |
| Wi-Fi router | 10 | 24 | 7.2 |
Important information
- Electricity tariffs in Pakistan change often and depend on your DISCO (LESCO, IESCO, K-Electric, MEPCO, etc.), monthly slab, protected/unprotected status, fuel price adjustment and taxes. That is why the rate is always an input — pre-filled with an example of Rs 55 per unit.
- To find your real all-in rate, divide the total amount on your latest bill by the units consumed.
- Since 2026, domestic bills also include a fixed monthly charge based on sanctioned load (kW), in addition to the per-unit charge — add it as a fixed charge in the bill estimator.
Frequently asked questions
Which appliance uses the most electricity at home?
In Pakistani summers it is almost always air conditioning, followed by water pumps, fridges/freezers and irons.
Does an inverter AC really save electricity?
Usually yes — inverter ACs adjust compressor speed instead of switching on and off, often using 30–50% less energy in steady use.
Does leaving devices on standby use power?
A little — typically 1–5 W per device. Many devices on standby all day can add a few units a month.
How much does it cost to run a fridge per month?
A typical fridge averaging 150 W uses about 108 units a month. Multiply by your rate per unit — at Rs 55 that is roughly Rs 5,900.
Learn more
- How to Estimate Your Electricity Bill — Turn watts and hours into units, find your real rate per unit from your bill, and see which appliances matter most in a Pakistani home.
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