Introduction

In summer, a lot of individuals turn their AC to 18°C, believing it will cool the room more quickly. However, the real question is, does it save electricity? In the case of 18°C vs. 24°C AC temperatures, it is not only a matter of cooling but also your monthly bill.
If you are trying to find the best AC temperature for electricity saving. In this guide, we explain which AC temperature saves electricity, how much power each setting uses, and why 24°C is often recommended as the ideal AC temperature India.

How AC Temperature Affects Electricity Consumption

Your AC works by maintaining the temperature you set. When you set it to a very low temperature, such as 18°C, the compressor will run continuously until it reaches that temperature. This raises the temperature of AC power consumption and results in increased power usage.
At 24°C, the AC is also able to reach the target quicker and turn on and off more efficiently. This enhances AC temperature efficiency and saves energy. That is why experts often recommend 24°C as the best temperature for air conditioner usage in Indian summers.

18°C vs 24°C AC Temperature – Complete Cost Comparison

In order to have a clear difference, we can divide it using a simple example.

Assumptions Used in the Comparison

We make an assumption of a 1.5 ton inverter AC operating 8 hours a day. The electricity cost is taken as ₹8 per unit. These values help estimate how much electricity does 24 degree AC save electricity compared to 18.

Power Consumption Per Hour

Electricity Usage at 18°C

The AC consumes approximately 1.5-1.8 units per hour at 18°C, as it makes the compressor work more intensively. This causes it to be one of the least effective in saving energy.

Electricity Usage at 24°C

At 24 C the same AC can consume between 0.9 to 1.2 units per hour. The system is less aggressive and hence uses less power. So when you ask is 24 degree AC a saving compared to 18, the answer is clearly yes.

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Daily Electricity Cost Comparison

Cost at 18°C Per Day

The total use at 1.6 units per hour during 8 hours is approximately 12.8 units per day.
The price is approximately ₹102 per day at 8 per unit.

Cost at 24°C Per Day

Using 1 unit per hour over 8 hours makes the total usage approximately 8 units per day.
It is approximately ₹64 per day.
This shows a difference of nearly ₹35–₹40 per day, making 24°C the better AC temperature for lowest bill.

Monthly Electricity Bill Comparison

Monthly Savings Breakdown

Assuming that you use AC every day, you can save up to ₹1000-₹1200 per month by using 24°C rather than 18°C.

Seasonal Savings Estimate

Savings may exceed ₹4,000 in a complete summer season.
This is why adjusting the temperature is one of the easiest tips to reduce electricity bill with AC.

Which AC Temperature Saves More Electricity?

The clear answer is 24°C.

If you are wondering which AC Temperature saves electricity, 24°C is the better choice. It minimizes compressor load, enhances efficiency, and reduces total power consumption.
It is also considered the best AC temperature setting for summer in India, as it offers a balance between comfort and savings.

Read More: Reduce your AC electricity bill this summer with easy energy-saving tips and smart cooling ideas.

Tips to Save More Electricity While Using AC

Keep your AC at 24°C and use a ceiling fan for better air circulation. It is amongst the easiest inverter AC savings tips. Wash filters to keep air flowing and effective.
Do not open windows and doors regularly, and cover windows with curtains to prevent heat. These small steps can help how to reduce AC electricity bill without affecting comfort
In addition, 24°C is ideal AC temperature for sleeping in summer best AC temperature in the room without consuming too much energy.

Conclusion

In the comparison between 18°C and 24°C AC Temperature, it is evident that there is a difference in the amount of electricity used. Although 18C is more efficient with respect to cooling, it is also more costly and consumes more energy. Conversely, 24°C will provide effective cooling and will allow saving your monthly payment.
To achieve the best comfort AC temperature for electricity saving, the ideal AC temperature to use is 24°C.

Why Housegyan?

At HouseGyan, we simplify home decisions with clear and practical advice. Whether you are choosing appliances or looking for ways to save electricity, we provide useful insights based on real-life needs.
Whether it is knowing about the efficiency of AC temperature or locating smart solutions in the house, HouseGyan assists you in making good decisions.

FAQs

1. Does setting AC to 24°C really save electricity?

Yes, it will decrease compressor load and enhance efficiency, which will result in reduced power consumption.

2. How much more power does 18°C consume compared to 24°C?

Maximum power which can be consumed by 18°C is 30-50% power depending on the use and conditions.

3. What is the ideal AC temperature for sleeping?

24°C is considered the ideal AC temperature for sleeping in summer for comfort and efficiency.

4. Is 18°C bad for your AC?

When used frequently, it may add strain and decrease performance with time.

5. Why do experts recommend 24°C for AC?

Because it balances cooling and energy saving, making it the ideal AC temperature India.

6. Can using a fan with AC reduce electricity bills?

Yes, it enhances air flow and allows more levels of temperature, which conserve energy usage.

20th, Apr, 2026

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