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Use our Water Cooling Calculator to calculate cooling rate, BTU per GPM, cooling water flow rate, and heat removal accurately with simple inputs.
Water cooling is one of the most efficient and widely used methods to remove heat from machines, HVAC systems, industrial processes, and electronic equipment. Whether you are designing a cooling system or checking heat removal capacity, accurate calculations are essential. That is why we developed this Water Cooling Calculator. It helps users quickly calculate cooling power, cooling rate, BTU per GPM, and required water flow using proven engineering formulas. The calculator is simple, fast, and reliable for real-world use.
A Water Cooling Calculator is an online tool that calculates how much heat water can remove from a system. It uses flow rate, temperature difference, water density, and specific heat capacity to determine cooling output. Engineers, technicians, and system designers use this calculation to size chillers, cooling towers, heat exchangers, and water-cooled equipment.
This calculator removes guesswork and provides accurate results in Watts, kilowatts, BTU per hour, and refrigeration tons.
The calculator uses the standard thermodynamics equation for water cooling.
Heat removed equals mass flow rate multiplied by specific heat multiplied by temperature difference.
In normal text format:
Q = m × Cp × ΔT
Where
Q is the heat removed
m is the mass flow rate of water
Cp is the specific heat of water
ΔT is the temperature difference between inlet and outlet water
To calculate mass flow rate from water flow:
m = density × volumetric flow rate
This formula is universally accepted in HVAC, industrial cooling, and mechanical engineering.
Cooling water flow rate depends on how much heat needs to be removed and the allowed temperature rise of the water.
Rearranged formula in normal text:
Flow rate = Q ÷ (density × Cp × ΔT)
If the heat load increases or the temperature difference decreases, a higher water flow rate is required. This is why accurate cooling calculations are critical in system design.
BTU per GPM is a common HVAC rule. For water cooling, the standard calculation is:
BTU per hour = 500 × GPM × ΔT
The number 500 comes from water density, specific heat, and unit conversions. This formula is widely used to estimate cooling capacity quickly and accurately.
Cooling rate is simply how fast heat is removed from a system. It is usually expressed in Watts or BTU per hour. Using water cooling, the rate depends on flow rate and temperature difference. Increasing either one increases the cooling rate.
Our Water Cooling Calculator automatically calculates the cooling rate based on your input values.
The calculator also shows step-by-step calculations so users understand how the result was generated.
Assume a water flow rate of 10 liters per minute and a temperature difference of 10 degrees Celsius.
Convert flow rate to cubic meters per second.
Calculate mass flow rate using water density.
Apply the water cooling formula.
The result shows how many Watts, kilowatts, and BTU per hour of heat the water removes. This example demonstrates how quickly water cooling capacity can be calculated using the tool.
Cooling 100 gallons of water with ice depends on the starting temperature and final temperature. Ice absorbs heat as it melts, known as latent heat. One pound of ice absorbs about 144 BTU when melting. By calculating total heat to be removed from the water and dividing by 144, you can estimate how much ice is required. This concept follows the same heat transfer principles used in water cooling calculations.
The Water Cooling Calculator is a powerful yet easy-to-use tool for calculating cooling capacity, cooling rate, BTU per GPM, and cooling water flow rate. It uses accurate thermodynamics formulas and real engineering constants. Whether you are working on HVAC systems, industrial cooling, or educational projects, this calculator delivers fast and reliable results.
The most accurate formula is Q = m × Cp × ΔT, which is used in engineering and HVAC design worldwide.
The calculator uses standard physics equations and precise unit conversions, making it highly accurate for real-world applications.
Yes, the calculator automatically converts results into BTU per hour.
Engineers, technicians, HVAC professionals, students, and anyone working with water-cooled systems can use it.
Yes, higher temperature difference increases cooling capacity for the same water flow rate.