Cooling Tower Efficiency Calculator Online

Last updated on by Editorial Staff

Cooling Tower Efficiency Calculator

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Quick Guide to Use This Calculator

  • Select the desired temperature unit (Celsius or Fahrenheit)
  • Enter the Hot Water Temperature, Cold Water Temperature, and Wet Bulb Temperature.
  • Click the “Calculate” button to get the Range, Approach, and Efficiency as output result.
  • To start over, click the “Reset” button.


  • Range = hot water temperature – cold water temperature
  • Approach = cold water temperature – wet bulb temperature
  • Efficiency = (range/ range + approach) x 100

What Is the Cooling Tower Efficiency  Calculator?

A Cooling Tower Efficiency Calculator is a tool designed to assess and optimize the performance of a cooling tower system. Cooling towers are essential components in various industries, including HVAC systems, power plants, and manufacturing facilities, where they remove excess heat from processes.

Who Can Use This Calculator?

This calculator is useful for engineers, HVAC professionals, and anyone involved in water heating systems. For example,

  • HVAC Engineers: To optimize cooling tower systems in heating, ventilation, and air conditioning applications.
  • Facility Managers: To maintain efficient cooling tower operation within industrial facilities.
  • Energy Managers: To enhance energy efficiency and reduce overall energy consumption.

Industries That Can Use This Calculator

Industries such as HVAC, Manufacturing, Agriculture, and Power Generation can benefit from this calculator to optimize their water heating processes.

Benefits of Using This Calculator

  • Accurately determine the temperature range.
  • Improve energy efficiency in heating systems.
  • Identifying areas for efficiency improvement.
  • Enhancing energy efficiency and reducing operational costs.
  • Ensuring compliance with environmental regulations.
  • Extending the lifespan of cooling tower equipment.


What is the temperature range in the calculator?

The temperature range is the difference between Hot Water Temperature and Cold Water Temperature.

Can I use this calculator for both Celsius and Fahrenheit?

Yes, the calculator supports both temperature units.

How does the calculator help in improving efficiency?

By providing the Approach and Efficiency, the calculator helps identify optimal temperature settings for improved efficiency.

How can I improve the efficiency of my cooling tower?

You can improve your cooling tower by optimizing its performance and minimizing energy consumption. You can achieve it by doing Regular Maintenance, Implementing an effective water treatment program, Maintaining proper water chemistry,  Adjusting hot and cold water temperature setpoints, and Implementing comprehensive monitoring and control systems.


Cooling Tower Efficiency Calculator serves as a valuable tool for professionals involved in managing and optimizing cooling tower systems, providing insights into system performance and offering recommendations for increased efficiency and cost savings.