Best Engineering Calculator Hvac Apps

IN HVAC Calculator

HVAC Calculator & Reference

Free

This app provides HVAC inspection tools and guidelines for home inspectors. It helps estimate equipment age, size, and requirements, giving inspectors confidence in their reports.

HVAC & Sheet Metal Calculator

Construction Math & Trade Pro

Free

This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.

SuperCool Slide Rule HVAC

by Designstein, llc

Free

This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.

P-T Calculator

by National Refrigerants Inc.

Free

This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.

HVAC Load Calculator Manual J

BTU Sizing for Contractors

Free

This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.

HVAC Test Prep Practice 2026

Practice HVAC Exam Questions

Free

Prepare for your HVAC certification exam with a comprehensive practice test simulator. Access over 1,500 questions with detailed analysis and track your progress. Get ready to pass with confidence.

Heating & Cooling HVAC Pro+

HVAC Tools

Free

This app provides HVAC professionals with quick access to product information, tools, and support. It allows users to check pricing, availability, find locations, and manage warranty claims. Features include a PT calculator, duct calculators, and a flashlight tool for on-site work.

HVAC Exam Prep 2026

Pass HVAC Exam & Practice Test

Free

Prepare for your HVAC technician certification exam with a comprehensive mobile study tool. It offers a scientific study system, over 1,700 practice questions with detailed explanations, and simulated exams designed by experts. Track your progress and boost confidence for your first attempt.

HVAC Calculator Load Pro

Built for HVAC Specialists

Free

This tool provides fast, accurate HVAC load calculations for residential systems. It helps professionals size furnaces, air conditioners, and gas equipment correctly, avoiding guesswork and spreadsheets for confident client recommendations and more closed bids.

AC Service Tech LLC

by AC Service Tech, LLC

Free

This app provides a comprehensive platform for HVAC/R technicians and students to access educational resources. It features training videos, calculators, online courses with certificates, articles, and podcast episodes, all in one convenient location.

HVAC Load Plus

HVAC cooling and heating loads

$24.99

Perform detailed heating and cooling load calculations for buildings in the field using your iPhone. Access a vast weather database and construction data to generate comprehensive reports that can be emailed or exported to spreadsheets.

Flux HVAC: Tech Calculator

Superheat, Duct & PT Chart

Free

This professional toolkit helps HVAC technicians diagnose issues, charge systems accurately, and validate work with essential calculators. It offers offline functionality for superheat, subcooling, duct sizing, system performance, psychrometrics, and capacitor testing.

HVAC Toolkit Lite

Useful tool for HVAC engineers

Free

This tool assists HVAC engineers with design checks and quick calculations. It offers various tools for ducting friction loss, pipe sizing, ventilation, and heat load estimations, providing instructions and formulas for each calculation.