# What Size Air Conditioner for 12X12 Room?

##### Joseph Hebert
Owner at - HVAC Buster

Joseph is an HVAC technician and a hobbyist blogger. He’s been working as an HVAC technician for almost 13 years, and he started blogging just...Read more

Assuming you are in the United States, and you want a central air conditioner, you would need at least a 1.5 ton unit for a 12×12 room. This is because in the U.S., one ton of cooling capacity can remove about 12,000 British Thermal Units (BTUs) of heat per hour from the air. A 1.5 ton unit can remove up to 18,000 BTUs per hour.

If you’re wondering what size air conditioner you need for a 12×12 room, the answer isn’t as simple as you might think. The size of the room is just one factor that needs to be considered when choosing an AC unit. Other important factors include the height of the ceilings, the insulation in the room, the number and type of windows, and whether or not there are any heat-generating appliances in the space.

That being said, a good rule of thumb is that you’ll need about 1 ton (12,000 BTU) of cooling capacity for every 600 square feet of space. So, based on that calculation, a 12×12 room would require a 3-ton air conditioner. But again, it’s always best to consult with a professional HVAC contractor to determine the best AC unit for your specific situation.

## -What Size Air Conditioner Do I Need for a 12X12 Room

When it comes to cooling a room, size matters. But how do you know what size air conditioner you need for a 12×12 room? The first step is to figure out the square footage of the space.

To do that, simply multiply the length and width of the room. In this case, that would be 12×12, or 144 square feet. Next, you’ll need to take into account the climate in your area.

If you live in a hot and humid climate, you’ll need an AC unit that can move more air than if you live in a cooler climate. That’s because humidity makes it harder for your body to cool itself down, so your AC unit will have to work harder. Finally, you’ll need to consider the number of people who typically occupy the space.

The more people there are, the more heat they will generate and the larger your AC unit will need to be. Now that you know all of that, here’s a general guide for what size air conditioner you’ll need for a 12×12 room: For a small room (up to about 150 square feet), you’ll want an AC unit that is at least 5,000 BTUs (British Thermal Units).

For a medium-sized room (151-300 square feet), an AC unit with 7,000 BTUs should suffice. And for large rooms (301-500 square feet), look for an AC unit with 10,000 BTUs or more.

## Conclusion

The size of the air conditioner you need for a 12×12 room depends on several factors, such as the climate, the level of insulation in the room, and the number of windows. A rule of thumb is that you’ll need about 20 BTUs per square foot of space, but it’s always best to consult with a professional to get an accurate estimate.

Joseph is an HVAC technician and a hobbyist blogger. He’s been working as an HVAC technician for almost 13 years, and he started blogging just a couple of years ago. Joseph loves to talk about HVAC devices, their uses, maintenance, installation, fixing, and different problems people face with their HVAC devices. He created Hvacbuster to share his knowledge and decade of experiences with people who don’t have any prior knowledge about these devices.