Buying an air conditioner is an important purchase, and it is worth your time to make sure you do it right. This table provided by Energy Star can be used to get a VERY ROUGH ESTIMATE of how many BTUs you need to cool a given area. However, since there are many additional factors that influence the precise number of BTUs necessary to effectively and efficiently cool your specific area, we highly recommend that you speak with an expert to ensure the most accurate measurements.
As a service to you, eComfort.com offers FREE professional sizing calculations (valued around $500) by our in-house engineers. Just give us a call at 1-866-554-4328 and speak with our highly trained staff today.
Alternatively, if you're sizing for a single room (or multiple rooms to be conditioned independently) and want a good estimate without having to fill out our entire worksheet, you can use our online single-room sizing tool to give you a more accurate estimate than just using the table below.
Single-Room Sizing Tool >
If you're just looking for a rough estimate to guide your air conditioner search, you may reference the table provided by Energy Star below:
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A Very Quick Guide to A/C Sizing - Air Conditioner Sizing Chart by Square Footage. Our heating, ventilation and cooling equipment how-to library can help you pick the perfect comfort solution for your home.