All Type of AC BTU Calculator in Air Conditioning!

BTU Calculator: (ac tonnage calculator per square foot)

Square footage of room:
Number of people in room:
Number of windows:
Number of lights:

BTU:

Note:- Btu calculation formula for air conditioner:

BTU = (20 x square footage of room) + (number of people in room x 400 BTU/person) + (number of windows x 400 BTU/window) + (number of lights x 50 BTU/light)

w/m2k to BTU/hr-ft2-f calculator:

W/m²K:
Calculate

The W/m²K to BTU/hr-ft²-°F calculator is an essential tool for efficiently converting thermal conductivity measurements into heat transfer rates, specifically from the unit of watts per square meter per kelvin (W/m²K) to British thermal units per hour per square foot per degree Fahrenheit (BTU/hr-ft²-°F).

Thermal conductivity quantifies how effectively a material conducts heat, with its standard unit of W/m²K describing the heat transmitted through a material, measured per unit time and temperature difference. In contrast, heat transfer focuses on the speed at which heat moves from one body to another, represented in BTU/hr-ft²-°F. This conversion tool employs a straightforward factor of 0.578 to facilitate the transition between these two measurement systems, based on the conversion relationships where one BTU is equivalent to 1,055 joules, and one joule corresponds to one watt-second.

By using these conversions, users can streamline calculations necessary for applications in HVAC and energy efficiency, allowing for accurate assessments of thermal performance across various materials and systems. To explore this converter further, visit our Smart AC Solutions page for more HVAC-related calculators and resources.

Cast iron radiator BTU calculator:

Height (in inches):

Width (in inches):

Calculate BTU

Formula:

BTU = (Height (in inches) x Width (in inches) x 193) / 144

This formula takes into account the size of the radiator (height and width in inches), as well as the heat-transfer coefficient of cast iron (193 BTUs per hour per square foot per degree Fahrenheit).

The result is then divided by 144 to convert the output to BTUs per hour.

For example, if you have a cast iron radiator that is 24 inches tall and 48 inches wide, the BTU output would be calculated as follows:

BTU = (24 x 48 x 193) / 144 = 222336 / 144 = 1544 BTUs per hour.

Keep in mind that this is just a rough estimate, and the actual BTU output of a radiator may vary depending on factors.

Such as the temperature of the water in the radiator, the ambient temperature in the room, and the insulation of the room.

BTU to GPM calculator:

BTU stands for British Thermal Unit, and it is a unit of energy used to measure the heating or cooling capacity of a system. GPM stands for gallons per minute, and it is a unit of flow rate that measures the volume of liquid that flows through a pipe or system over a certain period of time.

To convert BTU to GPM, you need to know the specific heat of the fluid being used, the temperature change of the fluid, and the time over which the fluid flows. Here is the formula for the conversion:

GPM = (BTU/hr) / (8.33 x (fluid’s specific heat) x (temperature change in degrees Fahrenheit))

For example, let’s say you want to convert 1,000 BTU/hr to GPM and the specific heat of the fluid is 1.0 and the temperature change is 50 degrees Fahrenheit. Using the formula above, the conversion would be:

GPM = (1,000 BTU/hr) / (8.33 x 1.0 x 50)

GPM = 0.6 gallons per minute

BTU to therm calculator:

Enter BTUs:

Result: therms

A therm is a unit of energy equal to 100,000 BTUs (British Thermal Units). To convert BTUs to therms, you can use the following formula:

Therms = BTUs / 100,000

For example, if you want to convert 1,000 BTUs to therms, the calculation would be:

Therms = 1,000 BTUs / 100,000 = 0.01 therms

lb/hr to btu/hr calculator

Pounds per hour:

BTU/hr:

You know, 1 lb/hr = 2,326 BTUs/hr. So, to convert from lb/hr to BTUs/hr, multiply the number of pounds per hour by 2,326. For example, if you have 50 lb/hr:

50 lb/hr * 2,326 BTUs/hr = 116,300 BTUs/hr

Here is the formula you can use:

BTUs/hr = lb/hr * 2,326

BTU to Fahrenheit Calculator

BTU:

Weight of substance (in pounds):

Calculate