Best Hvac Calculator Apps

232+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated June 2026

Looking for free HVAC calculator apps? 19 of our 232+ tracked titles are free to download โ€” no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Hvac Calculator

HVACR Check & Charge#1

HVACR Check & Charge by Copeland LP

PT Charts Superheat Subcooling
Editor's Choice
๐Ÿ” Reference
4.8๐Ÿ˜Š(16K ratings)
Free
HVACR Check & Charge screenshot 1
HVACR Check & Charge screenshot 2
HVACR Check & Charge screenshot 3
HVACR Check & Charge screenshot 4
HVACR Check & Charge screenshot 5
HVACR Check & Charge screenshot 6

HVACR Check is a powerful tool for HVAC technicians that streamlines equipment checklists, service reports, and maintenance workflows. Simplify your work processes and stay organized with this all-in-one solution.

What We Love

  • ๐Ÿš€ Convenient
  • ๐Ÿš€ Great program
  • ๐Ÿš€ Reliable app
  • ๐Ÿš€ Easy and quick charging reference

Room to Improve

  • ๐Ÿ› Pressure settings not helpful
  • ๐Ÿ”’ Concerning privacy policy
  • ๐Ÿ› Restricted temperature range
HVAC & Sheet Metal Calculator#2

HVAC & Sheet Metal Calculator by Calculated Industries, Inc.

Construction Math & Trade Pro
Strong Contender
๐Ÿ”ง Utilities
5.0(40 ratings)
FreeIn-App Purchases
HVAC & Sheet Metal Calculator screenshot 1
HVAC & Sheet Metal Calculator screenshot 2
HVAC & Sheet Metal Calculator screenshot 3
HVAC & Sheet Metal Calculator screenshot 4
HVAC & Sheet Metal Calculator screenshot 5
HVAC & Sheet Metal Calculator screenshot 6

This ultimate calculator for HVAC professionals and sheet metal specialists simplifies complex calculations with precision tools for ducting offsets, angle measurements, and dimensional math. Try it out with a free trial and transform your workflow to increase accuracy, eliminate errors, and boost productivity with every calculation.

IN HVAC Calculator#3

IN HVAC Calculator by Gregory Enterprises

HVAC Calculator & Reference
Worth Considering
๐Ÿ”ง Utilities
4.2(11 ratings)
Free
IN HVAC Calculator screenshot 1
IN HVAC Calculator screenshot 2
IN HVAC Calculator screenshot 3
IN HVAC Calculator screenshot 4

This application provides HVAC inspectors with a reference point to estimate equipment age, size, and other relevant details, helping them to map out inspections and set the tone for their reports. It offers various calculators and guidelines for determining equipment circuit requirements, air conditioner tonnage, manufacture dates, and combustion air requirements.

More Hvac Calculator apps to explore

4
HVAC Calculator Load Pro
HVAC Calculator Load Pro
HVAC Calculator Load Pro
Built for HVAC Specialists
Free
$12.99 | 100% OFF
๐Ÿ“Š Productivity
(1)
5
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
by Designstein, llc
Free

Get advanced solutions for HVAC problems with an interactive app that guides technicians through repair steps. Simplify complex issues and enhance your repair processes.

๐Ÿ”ง Utilities
(185)
6
P-T Calculator
P-T Calculator
P-T Calculator
by National Refrigerants, Inc.
Free

This comprehensive calculation tool helps HVAC/R technicians with pressure/temperature relationships, superheat/subcool temperatures, and refrigerant calculations, featuring automatic altitude correction and unit conversions. Download the app to easily perform calculations, access refrigerant information, and utilize handy tools to streamline your work.

๐Ÿ” Reference
(51)
7
BTU Calculator -  Data Centers
BTU Calculator -  Data Centers
BTU Calculator - Data Centers
Cooling Requirements
Free

This application helps estimate the cooling capacity required for a data center to maintain a stable temperature and humidity level. It considers various factors, such as space, occupancy, and heat output, to provide a rough estimate of cooling needs, and allows users to instantly view results as they update input data.

๐Ÿ”ง Utilities
(288)
8
Bluon HVAC
Bluon HVAC
Bluon HVAC
HVAC Tools
Free

Discover a powerful HVAC tool with access to a vast database of 500,000 HVAC models for manuals and part lists, troubleshooting support from MasterMechanic A.I., and live assistance from veteran technicians. Join the largest HVAC community to elevate your industry knowledge and skills today.

๐Ÿ”ง Utilities
(4.4K)
9
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
HVAC Sizing & Psychrometric
Free
๐Ÿ”ง Utilities
(7)
10
HVAC Test Prep Practice 2026
HVAC Test Prep Practice 2026
HVAC Test Prep Practice 2026
Practice HVAC Exam Questions
Free

This application helps you prepare for the HVAC certification exam with a comprehensive question bank, scientific test modes, and progress tracking, allowing you to feel confident and prepared on exam day. Start practicing for free and consider upgrading to unlock all features and questions to ensure you pass the exam on your first attempt.

๐Ÿ“š Education
(7)
11
HVAC Exam Prep 2026
HVAC Exam Prep 2026
HVAC Exam Prep 2026
Pass HVAC Exam & Practice Test
Free

Pass the HVAC certification exam with confidence using our expert-designed app, which provides a customized study plan, 1,700+ questions with detailed explanations, and simulated quizzes to help you achieve your goals. Download the app to start preparing for the exam and boost your chances of passing on your first try!

๐Ÿ“š Education
(93)
12
Flux HVAC: Tech Calculator
Flux HVAC: Tech Calculator
Flux HVAC: Tech Calculator
Superheat, Duct & PT Chart
Free
๐Ÿ”ง Utilities
(1)
13
measureQuick HVAC
measureQuick HVAC
measureQuick HVAC
Connect. Perform. Prosper.
Free

An application that helps HVAC technicians diagnose system problems efficiently by providing data aggregation tools and on-the-job education, leading to increased productivity. Connect, perform, and prosper with this powerful tool for improving HVAC maintenance and troubleshooting.

๐Ÿ“Š Productivity
(5)
14
HVAC Load Calculator Manual J
HVAC Load Calculator Manual J
HVAC Load Calculator Manual J
BTU Sizing for Contractors
Free
$1.99 | 100% OFF
๐Ÿ”ง Utilities
(24)
15
Contactor - HVAC Portal
Contactor - HVAC Portal
Contactor - HVAC Portal
HVAC Assistant for Techs
Free

Get instant access to real-time refrigerant prices, locate nearby suppliers, and book appointments on the go with our all-in-one tool, perfect for HVAC professionals. Try it now and regain control of your time.

๐Ÿ“Š Productivity
(2)
16
HVAC School
HVAC School
HVAC School
By Techs For Techs
Free
๐Ÿ“š Education
(81)
17
HVAC Tools PT Chart - Gauge
HVAC Tools PT Chart - Gauge
HVAC Tools PT Chart - Gauge
Superheat, PT Chart & Service
Free
๐Ÿ”ง Utilities
(0)
18
Ductulator - Duct Sizing
Ductulator - Duct Sizing
Ductulator - Duct Sizing
HVAC Duct Design Calculator
$3.99
๐Ÿ“Š Productivity
(272)
19
CE HVAC Pro+
CE HVAC Pro+
CE HVAC Pro+
HVAC Tools
Free

An HVAC tool application offering HVAC technicians easy access to warranty entitlement, inventory, order status, manuals, and tech specs for various models. It aims to support technicians with quality products, expert technical assistance, and business growth, positioning itself as a leading HVAC supplier. Experience real-time product availability and streamline your HVAC tasks with this free app.

๐Ÿ“Š Productivity
(1.5K)
20
Ref Tools
Ref Tools
Ref Tools
All-in-one HVACR app
Free

This all-in-one HVACR app provides essential tools for technicians, including refrigerant calculators, troubleshooting guides, and product finders, to streamline workflow and increase efficiency. Download the app to access a collection of useful tools and resources to help you get the job done quickly and effectively.

๐Ÿ”ง Utilities
(47)

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