What Is the Best AC Temperature Setting to Save Electricity?

Ideal AC Temperature for Different Tonnage to Save Electricity

The right AC temperature is not the same for every home. While 24 C to 26 C is the most energy efficient range, the ideal setting also depends on your AC's tonnage and room size.

• 1 Ton AC (Up to 120 sq. ft.): Set the temperature between 24C and 25C for the best balance of cooling and electricity savings. In a well-insulated room, 26 C is also comfortable.
• 1.5 Ton AC (120 to 180 sq. ft.): Keep the AC at 24C to 26C. During peak afternoon heat, start at 24 C and increase it to 25 C or 26 C once the room cools.
• 2 Ton AC (180 to 260 sq. ft.): A setting of 24 C to 25 C is ideal for large rooms. Lower temperatures usually increase power consumption without making the room cool noticeably faster.

Quick Tip: Don't choose the temperature based only on your AC's tonnage. Room insulation, sunlight, ceiling height, and the number of people in the room also affect how cool the room feels. A slightly higher setting in a well-sealed room often delivers the same comfort while using less electricity.

Ideal AC Temperature for Different Everyday Scenarios

The same temperature does not work for every situation. The weather outside, time of day, room conditions, and the number of people inside all affect how comfortable your room feels. Adjusting the temperature based on these everyday scenarios can improve comfort and help reduce electricity consumption.

• During the Day (Normal Summer Weather): Keep your AC between 24 C and 26 C. This range provides comfortable cooling while avoiding unnecessary power consumption.
• During Peak Afternoon Heat: If the room is very hot after being closed all day, start the AC at 24 C. Once the room cools down, increase it to 25 C or 26 C instead of keeping it at a lower temperature.
• At Night While Sleeping: Set the AC to 25 C or 26 C. Since your body temperature naturally drops during sleep, a slightly warmer setting is usually enough. If available, use Sleep Mode for better efficiency.
• If the Room Gets Direct Sunlight: Keep the temperature at 24 C to 25 C, but close curtains or blinds to block heat. This reduces the cooling load on the AC and helps maintain a comfortable temperature.
• When More People Are in the Room: A room with several people warms up faster. Setting the AC to 22 C usually keeps everyone comfortable without needing to lower it further.
• During Humid Weather: High humidity often makes the room feel warmer than it actually is. A setting of 23 C to 24 C, along with Dry Mode, can make the room feel cooler while using less electricity than lowering the temperature.

Tip: Instead of reducing the temperature every time you feel warm, try increasing the fan speed or using a ceiling fan. Better air circulation often makes the room feel cooler without increasing your electricity bill.

Brand Wise AC Temperature and Energy-Saving Settings

Most leading AC brands recommend keeping the temperature between 24 C and 26 C for everyday use. However, each brand offers different features that can further reduce electricity consumption when used correctly.

LG

• Best temperature: 24 C to 26 C
• Best settings: Turn on AI Air or Energy Control mode. If you are alone or the room cools quickly, reduce the cooling capacity to 80% or 60%. Use Sleep Mode at night for lower power consumption.

Daikin

• Best temperature: 25 C to 26 C
• Best settings: Use Econo Mode for daily cooling, especially when the room is already comfortable. Pair it with Sleep Mode at night to reduce compressor load and save electricity.

Voltas

• Best temperature: 24 C to 26 C
• Best settings: Switch on Eco Mode during regular use. If your AC has Adjustable Inverter or Convertible Mode, choose a lower cooling capacity on mild summer days instead of running the AC at full power.

Blue Star

• Best temperature: 24 C to 25 C
• Best settings: Use Eco Mode for long hours of cooling and enable Comfort Sleep while sleeping. During humid weather, Dry Mode can make the room feel cooler without lowering the temperature.

Panasonic

• Best temperature: 24 C to 26 C
• Best settings: Turn on AI Eco Mode, which adjusts cooling based on room conditions. If your model supports Converti7, use a lower cooling level whenever the room doesn't need maximum cooling.

Quick Tip: No matter which brand you use, avoid keeping the AC at 18 C or 20 C for long periods. A temperature of 24 C to 26 C, combined with Eco, AI, Sleep, or Convertible modes, usually delivers the best balance of comfort and lower electricity bills.