The desire for a comfortable indoor environment has led to a major increase in the demand for inverter AC units in Pakistan. With soaring summer temperatures and the ever-present concern of rising electricity costs, knowing your appliance’s energy appetite is crucial. This is why understanding the 1.5 ton inverter AC power consumption per hour in Pakistan is so important.
The 1.5 ton inverter AC model is the most popular choice for cooling an average-sized room in homes and offices across the country. But how much does it actually add to your monthly utility statement? Let’s break down the 1.5 ton inverter AC power usage in simple terms.
Use our free inverter AC power calculator to check monthly electricity usage. Select Protected or Non-Protected, choose your AC model, add usage hours, and get instant results.
Electricity Consumption Calculator
Calculate your monthly usage based on average appliance power ratings.
Consumption Summary
| Monthly Units | 0.00 kWh |
|---|---|
| Estimated Cost (Rs) | Rs. 0.00 |
| Grand Total (Inc. Taxes) | |
| Rs. 0 | |
What is a 1.5 Ton Inverter AC?
To begin, let’s quickly define the basics. When we talk about “1.5 ton,” it refers to the cooling capacity of the unit, which is roughly equivalent to removing 18,000 British Thermal Units (BTU) of heat per hour.
An inverter air conditioner Pakistan unit differs significantly from a normal AC. A conventional air conditioner runs its compressor at full power until the desired temperature is reached, then shuts off completely. An inverter AC, on the other hand, adjusts its compressor speed to continuously maintain the set temperature. This variable speed allows for much more energy-efficient operation. This feature makes it an inverter AC energy saving option that can greatly lower your overall expenditure.
Power Consumption of 1.5 Ton Inverter AC per Hour
The actual inverter AC power consumption is not a fixed number; it is a range. A standard 1.5 ton AC electricity usage is significantly less than a non-inverter unit, especially after the room has cooled.
Calculating Power Usage
How do we figure out the power usage of the 1.5 ton split inverter AC per hour? The simplest calculation is:
Energy consumed (kWh) = Power (kW) x Time (hours)
Since 1 kWh is equal to one electricity unit per hour, knowing the average wattage helps. A typical 1.5 ton inverter AC will have a maximum wattage of around 1800 W to 2200 W when starting up. However, once the room is cool, the power input can drop dramatically to between 500 W and 1200 W for maintenance. This translates to the average power consumption of inverter AC being around 0.5 to 1.2 electricity units per hour for the majority of its running time.
AC Power Consumption Chart
For a quick reference, here is a general AC power consumption chart showing the typical range:
| AC Type | Capacity | Start-Up Wattage (Max) | Stabilized Wattage (Average) | Electricity Units per Hour |
| Inverter AC | 1.5 Ton | 1800W – 2200W | 500W – 1200W | 0.5 – 1.2 kWh |
| Non-Inverter AC | 1.5 Ton | 2200 W | 2200 W (runs constantly) | 2.2 kWh |
This demonstrates the considerable difference in the power usage of 1.5 ton AC.
Factors Affecting Power Consumption
Several things influence how much electricity an AC unit uses. The running inverter AC unit per hour will fluctuate based on these key factors:
- Room Size and Insulation Quality: A larger space or poor insulation (leaky doors/windows) forces the AC to work harder, increasing the 1.5 ton ac energy consumption.
- Outdoor Temperature and Humidity: The higher the outside temperature, the more effort the unit needs to cool the room, pushing the inverter AC wattage closer to its maximum limit.
- Inverter AC Wattage and Voltage: The specific efficiency and the stability of the inverter AC voltage and current in your area play a big role. Voltage drops can lead to inefficient operation.
- Usage Hours and Temperature Settings: Running it for longer hours or setting the temperature very low will naturally increase the 1.5 ton AC power usage per hour.
Average Electricity Cost of Running a 1.5 Ton Inverter AC
To fully understand the impact on your wallet, we need to calculate the actual cost. This gives you a clear picture of the inverter AC electricity cost Pakistan.
Calculating the Cost
Assuming an average running consumption of 0.9 kWh per hour (which is 900 watts or 0.9 units per hour in a stabilized condition) and using an estimated average residential unit rate of PKR 35 per kWh (including taxes and surcharges for a higher-slab consumer in Pakistan in 2025):
- Electricity cost per hour: 0.9 units x PKR 35 unit = PKR 31.5
- Electricity cost per month (assuming 8 hours of daily use for 30 days):0.9 units / hour x 8 hours / day x 30 days = 216 units / month (kWh) 216 units x PKR 35 / unit = PKR 7,560 per month.
This example shows how an energy saving inverter AC unit can significantly reduce the inverter ac electricity bill compared to older, non-inverter models.
Power Consumption Calculator for Inverter AC
To get a precise estimate for your own situation, it’s best to use a specialized power consumption calculator for inverter AC. This tool allows you to accurately estimate monthly and daily energy consumption.
- Find your AC’s average running wattage (e.g.1000 W). This is the inverter AC watt consumption after the room has cooled.
- Determine your daily usage in hours (e.g. 10 hours).
- Use the formula:

For a sample calculation of 1.5 ton inverter AC electricity consumption per hour (at 1000 \ W):

This helps in a detailed inverter AC load calculation for your home’s electrical system.
Energy Efficiency and Performance Tips
You can further maximize your low power consumption AC unit’s efficiency with a few simple steps. The goal is to improve the 1.5 ton AC energy efficiency and reduce the overall cost of running.
Maintenance
Maintain the inverter AC energy efficiency ratio (EER) by cleaning your filters every few weeks. Dirty filters make the compressor work harder.
Stabilizers
Use proper voltage stabilizers. This ensures your unit operates at its optimal inverter ac watt per hour usage and is protected from electrical damage.
Temperature Settings
The recommended temperature settings for electricity saving with inverter AC are between 25 and 26 centigrade temperature. This is comfortable and keeps the compressor running at a lower, more efficient speed.
Best 1.5 Ton Inverter AC Models in Pakistan (2025)
The market for best 1.5 ton inverter AC in Pakistan is highly competitive, with brands focusing on maximizing efficiency to offer the best inverter AC for low electricity bills. The following brands are known for their energy efficient inverter AC models:
| Model / Brand | Estimated Power Usage (Watts) | Inverter AC kWH Usage (Per Hour) |
| Gree Fairy Series | 500W – 1100W | 0.5 – 1.1 |
| Haier Thunder Inverter | 550W – 1200W | 0.55 – 1.2 |
| Dawlance Mega Series | 600W – 1150W | 0.6 – 1.15 |
Buyers should check the 1.5 ton inverter AC price in Pakistan alongside the efficiency rating, and compare the estimated inverter AC running cost per hour before making a final decision. The higher the EER/SEER rating, the better the long-term saving.
Conclusion
The most important takeaway is that the 1.5 ton inverter AC power consumption per hour is variable, typically falling between 0.5 and 1.2 kWh in stabilized conditions. Choosing an inverter model provides substantial savings, turning the electricity cost of running inverter AC into a much more manageable expense.
Always look beyond the sticker price and consider the long-term inverter ac kwh per hour consumption. We strongly encourage readers to use an inverter AC energy cost calculator and calculate their own 1.5 ton ac watt per hour consumption before making a purchase. This smart approach ensures comfort without the shock of a high inverter AC kwh usage on your bill.
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