HVAC Pro Toolkit

HVAC Pro Toolkit is a collection of practical HVAC calculators designed to help estimate cooling load, heating load, airflow, duct size, BTU conversion, pressure drop, and air velocity. The app provides simple calculation tools with reference information and best practice tips.

The app is intended for HVAC technicians, engineers, students, and anyone who needs quick access to common HVAC calculations.

Available Calculators

Cooling Load Calculator
Estimate cooling load based on room area and occupancy to help determine approximate AC tonnage requirements.

Heating Load Calculator
Estimate heating load using room size based calculation formulas.

Air Flow CFM Calculator
Calculate required airflow in CFM using equipment load and temperature difference.

Duct Size Calculator
Calculate required duct area based on airflow and velocity.

BTU Converter
Convert between tons of refrigeration and BTU per hour.

Pressure Drop Calculator
Estimate duct pressure drop based on airflow and duct length.

Velocity Calculator
Calculate air velocity using airflow and duct area.

Additional Information Included

Each calculator also includes:

Best practice tips
Engineering reference values
Formula explanations used in calculations

This helps users understand how calculations are derived.

App Features

Simple and easy to use interface
Multiple HVAC calculators in one app
Instant calculation results
Engineering reference information included
No account required