The cooling capacity of an air conditioner is typically measured in British Thermal Units (BTUs) per hour. A 10,000 BTU air conditioner is a mid-sized unit suitable for cooling a specific area. The size of the area it can effectively cool depends on various factors such as insulation, ceiling height, number of windows, and heat-generating appliances. However, as a general rule of thumb, a 10,000 BTU air conditioner can cool a room or area of approximately 300 to 450 square feet (28 to 42 square meters).
Keep in mind that this is a rough estimation, and it's essential to consider other factors like climate conditions, room layout, and the direction the room faces. For the most accurate sizing and efficiency, it's recommended to consult with an HVAC (Heating, Ventilation, and Air Conditioning) professional to ensure you choose the right-sized air conditioner for your specific needs.