Air Conditioner Wattage Calculator

Estimate the running wattage of an air conditioner based on cooling capacity, efficiency rating, unit type, and operating mode. This calculator helps compare expected power draw for different AC setups.

AC Tonnage Calculator

Estimate the recommended air conditioner tonnage based on room area, ceiling height, climate, sun exposure, and insulation quality. This helps size a residential cooling system for typical home spaces.

AC BTU Calculator

Estimate the recommended air conditioner cooling capacity in BTUs per hour based on room size, ceiling height, sun exposure, insulation quality, and occupancy.

Portable AC BTU Calculator

Estimate the recommended BTU capacity for a portable air conditioner based on room size, ceiling height, sun exposure, number of occupants, and heat-producing electronics.

Central Air Conditioner Size Calculator

Estimate the recommended central air conditioner size in tons based on conditioned floor area, ceiling height, climate zone, insulation quality, and sun exposure. This provides a planning estimate for cooling capacity before a professional Manual J load calculation.

Sensible Heat Load Calculator

Estimate sensible heat load using airflow, indoor and supply air temperatures, elevation correction, and system safety factor. The calculation uses the standard HVAC relationship Qs = 1.08 × CFM × ΔT, adjusted for air density at elevation and a design factor.

Total Heat Load Calculator

Estimate the total cooling heat load for a room or small space by combining area-based sensible load, occupancy, equipment, and lighting contributions with insulation quality adjustment.

Heating Load Calculator

Estimate the heating load needed for a space using floor area, ceiling height, insulation quality, climate severity, and window area. The result is an approximate BTU/hour requirement for heating system sizing.

Cooling Load Calculator

Estimate the required cooling capacity for a room or small space in BTU per hour based on floor area, ceiling height, occupancy, sun exposure, and insulation quality.

HVAC BTU Calculator

Estimate the cooling capacity needed for a room or small area in BTUs per hour based on room size, ceiling height, sun exposure, occupancy, and climate.