The summer of 2023 is here and getting hot day by day, Air cooler is good to lower down the room temperature but it can’t remove moisture content from air as it can’t dehumidify the air as a result the room environment is clammy so Air conditioner is best suited for summer.Now the question arises which is right air conditioner to be installed a per your room specifications.
As different sizes of Air conditioner available in market like 0.8 Ton, 1 Ton, 1.5 Ton, 2 Ton, 2.5 Ton, 3 Ton, 3.5 Ton. so we have to choose one particular Ton of AC as per specifications of rooms.
How to calculate AC tonnage for room
The actual method of finding AC tonnage for room is very confusing as it consists of British thermal unit (BTU) 1 Ton equals 12000 BTU. but here we tell you the simple method to find out the AC tonnage for room, firstly we have to find out the volume of room now the question arises how to find out the volume of room which is very simple.
Volume = (Length * Breadth * Height) in cubic feet
As shown above this is design showing the room, here l indicates the length of room now you have to simple measure the same length of your room with the help of measuring tape in feets. b donates the breadth and h donates the height of room. so you have to measure all the three dimensions of room and calculate volume in cubic feet.
Once you calculate the volume of room Divide the volume of room by 1000 and you will get AC tonnage required for room size.
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This is not the exact AC tonnage required for room as there are also various other factors affecting the ac capacity required for your room listed below:-
- Whether Direct sunlight falling on your ceiling (because if you are living on top floor then direct sunlight strikes on your ceiling on the other hand if you are living in ground floor and its a double story house i.e. there are floor above that room then sunlight don’t strikes directly over the ceiling.
- The place you live is very hot or moderate type climate.
- The Positioning of windows of room.
- Number of people residing in the room
The table below shows the right AC tonnage required for your room. While preparing this table we have assumed-
- 3-4 people residing in the room
- Average height of room from floor to ceiling is 10 feet.
| Area of Room | Cooling Requirement | Recommended AC Tonnage |
| 100 Sq ft | 0.9 tons | 1 ton ac |
| 120 Sq ft | 1.0 tons | 1 ton ac |
| 150 Sq ft | 1.3 tons | 1.5 ton ac |
| 160 Sq ft | 1.4 tons | 1.5 ton ac |
| 170 Sq ft | 1.5 tons | 1.5 ton ac |
| 200 Sq ft | 1.7 tons | 2 ton ac |
| 250 Sq ft | 2.1 tons | 2 ton ac |
| 300 Sq ft | 2.6 tons | 2.5 ton ac |
| 400 Sq ft | 3.4 tons | 3.5 ton ac |
Here we didn’t consider direct exposure of sunlight to ceiling and room walls from south west, so Recommended AC Tonnage can change with these variations.
The Thumbrule for calculating these factors also are as follows-
- Add 0.10 ton to cooling requirement, if you are living in hot place.
- Add 0.20 ton to cooling requirement, if there is direct sunlight exposure to ceiling of room.
- Add 0.10 ton to cooling requirement, if walls of the room are exposed to sunlight from south-west direction.
So If area of your room is 120sq.ft then as per above table cooling requirement is 1.0 ton, but now if there is direct exposure of sunlight to ceiling and wall exposed to south-west direction and also place you live is hot then cooling requirement for room increases from 1.0 ton to 1.4 ton and hence you have to invest in a 1.5 Ton AC.
Now we have explain each aspect of finding out the AC tonnage required for room Now if again you find it difficult to calculate the AC Tonnage then you can use below Calculator to find out the AC Tonnage, you have to just fill the necessary details asked by the calculator and then click on calculate and you will get cooling requirement along with AC Tonnage required for room.
I hope you like this article and get complete information regarding AC Tonnage requirement for room, if any queries you can feel free to contact us.
