Size Your AC in Minutes – No More Guesswork
CoolCalc is the first mobile app that helps you quickly calculate the precise cooling load and Air Conditioning system size you need based on real weather data for all 36 Nigerian states.

Is Your AC Sizing and Selection Costing You More Than It Should?
Manually calculating the cooling load for your building can be a tedious, error-prone process. Whether you’re an engineer, technician, occupant or facility manager, using outdated formulas or “rules of thumb” leads to over-sized or under-sized systems. This results in wasted energy, increased costs, and unhappy occupants. Don’t let improper sizing cause inefficiency and unnecessary expenses.
CoolCalc: The Smart Solution for Accurate Cooling Load Estimation
CoolCalc is designed to make cooling load calculation simple and precise. With our app, you’ll have access to data for all 36 states in Nigeria, ensuring you size your Air Conditioning systems accurately based on local weather data and building materials. Say goodbye to costly professional services and hello to quicker, more accurate estimations right from your phone.
Precise Results for You
We use real-time weather data and local building materials to give you precise calculations for any building in Nigeria.
Save Time and Energy
What used to take hours with complex charts and tables now takes minutes with CoolCalc. Get the right system size quickly and confidently.
No Expertise Required
CoolCalc is user-friendly for both experts and beginners. Even if you’re new to HVAC systems, the app guides you step-by-step to accurate results.
FAQs
Can CoolCalc be used for residential and commercial buildings?
Yes! The app is designed to calculate cooling loads for both residential and commercial spaces, ensuring accuracy across all types of buildings.
How is CoolCalc different from other HVAC software?
CoolCalc uses localized data specific to Nigeria’s 36 states, offering precision and accessibility unlike other HVAC software that only covers major cities.
Do I need to be an HVAC expert to use CoolCalc?
Not at all! CoolCalc is designed to be easy for anyone to use, with a simple interface that guides you through the process step by step.
Are there any hidden charges?
No! CoolCalc is completely free to use!