Best Hvac Pro Calculator Apps

219+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated June 2026

Finding the right hvac pro calculator app can be overwhelming with so many options. We've analyzed 219+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Hvac Pro Calculator

HVAC & Sheet Metal Calculator#1

HVAC & Sheet Metal Calculator by Calculated Industries, Inc.

Construction Math & Trade Pro
Editor's Choice
🔧 Utilities
5.0(40 ratings)
FreeIn-App Purchases
HVAC & Sheet Metal Calculator screenshot 1
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HVAC & Sheet Metal Calculator screenshot 3
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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.

HVAC Pro Calculator: NEC + P-T#2

HVAC Pro Calculator: NEC + P-T by PLAYRIOT LLC

BTU Load, Duct & Voltage Drop
Strong Contender
🔧 Utilities
5.0(1 ratings)
FreeIn-App Purchases
HVAC Pro Calculator: NEC + P-T screenshot 1
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This app provides essential tools for HVAC technicians and electricians, including BTU load sizing, duct calculations, and refrigerant pressure-temperature charts. It offers a free tier with core functions and an optional Pro upgrade for advanced features like voltage drop calculations and unlimited job saving.

HVAC Calculator Load Pro#3

HVAC Calculator Load Pro by Ryan Perchak

Built for HVAC Specialists
Worth Considering
📊 Productivity
4.0(1 ratings)
FreeIn-App Purchases
HVAC Calculator Load Pro screenshot 1
HVAC Calculator Load Pro screenshot 2
HVAC Calculator Load Pro screenshot 3
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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.

More Hvac Pro Calculator apps to explore

4
Bluon HVAC
Bluon HVAC
Bluon HVAC
HVAC Tools
Free

Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.

500,000+ HVAC unit databaseManuals and part listsAI troubleshooting tool (MasterMechanic)
🔧 Utilities
(4.4K)
ad-supported
5
Heating & Cooling HVAC Pro+
Heating & Cooling HVAC Pro+
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.

View pricing and order statusReal-time product availabilityFind branch locations and hours
📊 Productivity
(42)
ad-supported
6
Calculator for iPad₊
Calculator for iPad₊
Calculator for iPad₊
Basic, Scientific, Plus Calc
Free

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Basic & Scientific CalculatorAdvanced Scientific FunctionsLive Currency Converter
🔧 Utilities
(126K)
free with in-app purchases
7
HVACR Check & Charge
HVACR Check & Charge
HVACR Check & Charge
PT Charts Superheat Subcooling
Free

This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.

Instant refrigerant charge calculatorSuperheat calculator (non-TXV)Subcooling calculator (TXV)
🔍 Reference
(17K)
free
8
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Dimensional math and conversionsRight angle and rafter calculationsArea and volume solutions
🔧 Utilities
(39K)
free with in-app purchases
9
HVAC Exam Prep 2026
HVAC Exam Prep 2026
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.

1,700+ specialized questionsDetailed explanationsSimulated exam quizzes
📚 Education
(93)
subscription
10
BTU Calculator: AC & HVAC
BTU Calculator: AC & HVAC
BTU Calculator: AC & HVAC
Room Size & Unit Sizing
Free
🔧 Utilities
(0)
11
HVAC PT Chart
HVAC PT Chart
HVAC PT Chart
HVAC Pressure/Temp Charts
Free

This tool provides HVAC technicians with instant access to pressure and temperature data for over 100 refrigerants. It allows users to input one value to find the other, view detailed refrigerant properties, and email comprehensive charts and data.

Pressure/temperature lookup for 100+ refrigerantsInput temperature to find pressure, or vice versaSlider control for precise value selection
📊 Productivity
(8)
free
12
Calculator HD++
Calculator HD++
Calculator HD++
by smalltech sarl
Free

This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.

High precision calculation engineResults displayed while typingMultiple undo functionality
🔧 Utilities
(268)
ad-supported
13
CoolCloud HVAC 2.0
CoolCloud HVAC 2.0
CoolCloud HVAC 2.0
HVAC Service Streamlined
Free

This application enables HVAC contractors to wirelessly connect with Goodman and Amana air handler and furnace control boards via Bluetooth. It streamlines equipment servicing, maintenance, configuration, and diagnostics for improved energy efficiency and performance.

Bluetooth connectivityEquipment configurationStatus monitoring
💼 Business
(17)
free
14
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Basic & Scientific CalculatorLive Currency ConverterHistory Tape
🔧 Utilities
(357K)
free with in-app purchases
15
Feet and Inches Calculator
Feet and Inches Calculator
Feet and Inches Calculator
Perfect Construction Calc!
Free

A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.

Construction math and estimatingLayout, framing, and jobsite calculationsImperial and metric unit conversion
🔧 Utilities
(384)
free with in-app purchases
16
Home Builder Pro Calcs
Home Builder Pro Calcs
Home Builder Pro Calcs
400+ Construction Calculators
$9.99

This app provides over 440 construction and home improvement calculations, including cost and time estimates, and quantity take-offs. It supports U.S. imperial and metric measurements, and allows calculations to be saved and emailed.

440+ construction calculatorsCost and time estimatesQuantity take-offs
🔧 Utilities
(1K)
free with in-app purchases
17
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Easy Basic Calculator
Free

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

Large buttonsDual-line display18 color themes
🔧 Utilities
(13K)
ad-supported
18
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
HVAC Sizing & Psychrometric
Free

This app provides professional HVAC duct sizing and psychrometric calculations in a single tool. It offers detailed calculations for various duct types and materials, along with comprehensive humid air property analysis. Designed for HVAC professionals, it replaces traditional ductulators with accurate digital functionality.

Duct sizing for round, rectangular, and flexible ductsFittings pressure drop calculationPsychrometric analysis with interactive chart
🔧 Utilities
(7)
free with in-app purchases
19
Concrete and Agg Calculator
Concrete and Agg Calculator
Concrete and Agg Calculator
by Chaney Enterprises
Free

Calculate precise amounts of concrete, aggregate, and masonry materials needed for various construction projects. Accounts for potential waste and overages to ensure you order the right quantity.

Concrete slab calculationConcrete footing calculationConcrete wall calculation
💼 Business
(37)
ad-supported
20
PCalc Lite
PCalc Lite
PCalc Lite
The Best Calculator
Free

This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.

Optional RPN modeMultiple undo and redoUnit conversions and constants
🔧 Utilities
(213)
free with in-app purchases