How much ton capacity of ac required for 300 sq ft?

The general guideline for air conditioning capacity is about 1 ton of cooling for every 400 to 600 square feet of living space. Therefore, for a 300 square foot area, you would typically need around 0.5 to 0.75 tons of AC capacity. However, factors like ceiling height, insulation, and local climate can affect this requirement, so it's advisable to consult with an HVAC professional for accurate sizing.