Air Conditioning Size Calculator and Estimator Chart

HVAC Design and Engineering

This AC size calculator.

This calculator is provided for use to calculate basic size in BTU to adequately cool a room of know size.

The sizing chart below the calculator is useful to help you determine your approximate air conditioner size requirement in Tons.

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Preview Calculator AC Required Preview



Estimated Air Conditioning Required in Tons based on Square Footage

Tons
Zone 1
Zone 2
Zone 3
Zone 4
Zone 5
1.5
600 - 900 sf
600 - 950 sf
600 - 1000 sf
700 - 1050 sf
700 - 1100 sf
2
901-1200 sf
951 - 1250 sf
1001 - 1300 sf
1051 - 1350 sf
1101 - 1400 sf
2.5
1201 - 1500 sf
1251 - 1550 sf
1301 - 1600 sf
1351 - 1600 sf
1401 - 1650 sf
3
1501 - 1800 sf
1501 - 1850 sf
1601 - 1900 sf
1601 - 2000 sf
1651 - 2100 sf
3.5
1801 - 2100 sf
1851 - 2150 sf
1901 - 2200 sf
2001 - 2250 sf
2101 - 2300 sf
4
2101 - 2400 sf
2151 - 2500 sf
2201 - 2600 sf
2251 - 2700 sf
2301 - 2700 sf
5
2401 - 3000 sf
2501 - 3100 sf
2601 - 3200 sf
2751 - 3300 sf
2701 - 3300 sf

sf = Square Foot

Zone 1 = Red
Zone 2 = Orange
Zone 3 = Yellow
Zone 4 = Green
Zone 5 = Blue

AC Requirements Image

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