HVAC & Ventilation Unit Conversions — BTU/hr, kW, Ton, ACH, CFM

Free HVAC and ventilation unit conversion calculators. Convert BTU/hr to kW, tons of refrigeration to kW, airflow ACH to CFM, wet bulb to relative humidity, and more industrial HVAC engineering tools.

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HVAC & Ventilation Unit Conversions — BTU/hr, kW, Ton, ACH, CFM (66)

BTU/hr to kW Converter

1 BTU per hour equals 0.000293071 kW. A British Thermal Unit (BTU) is defined as the amount of heat required...

BTU/hr to Watts Converter

BTU per hour is the traditional US unit for heating and cooling capacity. One BTU is the energy needed to...

CFM per Ton Converter

The standard rule of thumb in HVAC design is that 400 CFM of airflow provides approximately 1 ton (12,000...

FPM to m/s Converter

1 foot per minute equals 0.00508 meters per second. Since 1 foot = 0.3048 m and 1 minute = 60 seconds, the...

kW to BTU/hr Converter

1 kW equals 3412.14 BTU per hour. This is the inverse of the BTU/hr to kW conversion. Kilowatts are the...

m/s to FPM Converter

Meters per second (m/s) is the SI unit for velocity, while feet per minute (FPM) is the standard US unit for...

Refrigeration Tons to kW Converter

One refrigeration ton (RT) equals 3.51685 kW. This unit traces its origin to the 19th-century ice trade, where...

Sensible Heat Calculator

Sensible heat is the heat that causes a temperature change without a phase change. The equation Q_s = 1.08 ×...

ACH to CFM Calculator

Air Changes per Hour (ACH) is a dilution ventilation metric that expresses how many times the entire volume of...

Air Changes Per Hour (ACH) Calculator

Air Changes Per Hour (ACH) measures how many times the entire volume of air in a room is replaced with fresh...

Duct Velocity to CFM Calculator

The fundamental relationship between air velocity and volumetric flow: CFM = Velocity × Area. If air moves at...

HVAC Load Calculator (Tons)

Total HVAC cooling load combines sensible heat (temperature change) and latent heat (moisture removal), then...

Latent Heat Calculator

Latent heat is the energy associated with moisture addition or removal from air — it changes humidity without...

Static Pressure to CFM Calculator

This formula converts a static pressure differential across a known opening or flow resistance into an...

Wet Bulb to Relative Humidity Calculator

This simple approximation estimates relative humidity from dry bulb and wet bulb temperatures using the '5°...