Free AC Sizing calculator. If you’re wondering “What size air conditioner do I need?” This BTU and AC tonnage calculator can help. *Super easy* to use based on your climate and insulation factors.

The calculator uses your house size (square feet), climate zone, efficiency and equipment type (standard central air vs central heat pump) to show you exactly what size central air unit you need.

An Air Conditioner Size Calculator is a tool that helps you determine how much cooling power (measured in BTUs or tons) your room or house needs based on a few simple inputs.

Use this calculator to estimate the cooling needs of a typical room or house, such as finding out the power of a window air conditioner needed for an apartment room or the central air conditioner for an …

Use this air conditioner BTU calculator, or AC BTU calculator, to help you decide what size of the air conditioner to buy, so you can efficiently cool your room.

Jun 3, 2025 · Use the calculator to determine that a 5000 BTU window AC will cool a room up to 250 square feet. (Example 2) How large is your air conditioner? The number of BTU of a window or …

Enter the dimensions of any room and this AC BTU calculator returns the right cooling capacity, tonnage, and comfort range in seconds. It works as an air conditioner size calculator, a room air …

Air Conditioner Size Calculator: What Size AC Do I Need? Calculate the right air conditioner size by entering your room details below.

Apr 9, 2025 · Use our AC size calculator to find the best fit for your home. You’re only a few clicks away from your recommended AC tonnage. To find out the right BTU (British thermal unit) rating for your …

This tool calculates the recommended cooling capacity (in BTU/h) and AC tonnage needed based on room dimensions, number of occupants, window count, and sunlight exposure.