Plumbing, Airflow HVAC Calcs
Calculator:Homes,Plants,Water
$0.99
8.4for iPhone, iPad and more
Age Rating
Plumbing, Airflow HVAC Calcs Screenshots
About Plumbing, Airflow HVAC Calcs
The app is a no nonsense utility for Plumbers and people who want to calculate Airflow as well as basic HVAC calculations is good for reference, educational, and small projects.
Calculators
1. Virtual Airflow (US Units)
2. Virtual Airflow (Metric Units)
3. Reynolds Number for Metric
4. Reynolds Numberfor US / Imperial
5. Weights (Ounces, Grams, Pounds, Tons US, Kilograms, Tons UK, and Tonnes
The Virtual Airflow & Reynolds Number calculators are designed to give related and relevant information about the amount of air in a defined area, and the size air handler or fan required to move it in a given amount of time. The air movement can be from a heater, AC unit, chiller, refrigeration unit, closed fan unit or cooler (swamp cooler or evaporative cooler) into the area, or from an exhaust fan moving the air out of the area.
For the distance calculators enter the area dimensions in feet or meters. Accuracy to the inch or centimeter is not needed. Enter the number of times per hour that you would like total change of the air mass volume in that area. Enter the air flow specification of the air handler (fan) you anticipate using in cubic feet per minute (CFM) or cubic meters per minute. Click on Calculate and the results will be the (air) volume of the area, the amount of time for each volume of air mass change, the total volume of air requiring movement with an hour, the volume air flow of the suggested fan (based on your entries) and the number of fans or air handlers needed if they are of the target size you selected.
A guideline for clear air (especially if filtered) in an area is 4 to 8 complete cycles every hour.
Area Converters
• Square Inches and Shorter Conversion
• Square Feet & Yards & Meters Conversion
Distance Converters
• Inches & Centimeters & Millimeters Conversion
• Feet & Yards & Meters Conversion
• Miles & Kilometers Conversion
Volume Converters
• US/Imperial to Metric Units Conversion
• Metric to US/Imperial Units Conversion
• Inches & Centimeters Volume Conversion
• Feet, Yards, & Meters Volume Conversion
All results can also be emailed through the iphone’s email application using an automatically filled-in email template provided with the app.
This app features:
• Send your calculations or conversion by email
• Universal App (iPhone, iPod Touch, and iPad)
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs
No network connectivity required.
Note: All information in this app is for informational purposes only.
Note: Should not be considered for open fan blade fans in ceilings higher than 12 feet or with fan’s rated or measured in capacity for a room size in square feet rather than cubic feet.
Calculators
1. Virtual Airflow (US Units)
2. Virtual Airflow (Metric Units)
3. Reynolds Number for Metric
4. Reynolds Numberfor US / Imperial
5. Weights (Ounces, Grams, Pounds, Tons US, Kilograms, Tons UK, and Tonnes
The Virtual Airflow & Reynolds Number calculators are designed to give related and relevant information about the amount of air in a defined area, and the size air handler or fan required to move it in a given amount of time. The air movement can be from a heater, AC unit, chiller, refrigeration unit, closed fan unit or cooler (swamp cooler or evaporative cooler) into the area, or from an exhaust fan moving the air out of the area.
For the distance calculators enter the area dimensions in feet or meters. Accuracy to the inch or centimeter is not needed. Enter the number of times per hour that you would like total change of the air mass volume in that area. Enter the air flow specification of the air handler (fan) you anticipate using in cubic feet per minute (CFM) or cubic meters per minute. Click on Calculate and the results will be the (air) volume of the area, the amount of time for each volume of air mass change, the total volume of air requiring movement with an hour, the volume air flow of the suggested fan (based on your entries) and the number of fans or air handlers needed if they are of the target size you selected.
A guideline for clear air (especially if filtered) in an area is 4 to 8 complete cycles every hour.
Area Converters
• Square Inches and Shorter Conversion
• Square Feet & Yards & Meters Conversion
Distance Converters
• Inches & Centimeters & Millimeters Conversion
• Feet & Yards & Meters Conversion
• Miles & Kilometers Conversion
Volume Converters
• US/Imperial to Metric Units Conversion
• Metric to US/Imperial Units Conversion
• Inches & Centimeters Volume Conversion
• Feet, Yards, & Meters Volume Conversion
All results can also be emailed through the iphone’s email application using an automatically filled-in email template provided with the app.
This app features:
• Send your calculations or conversion by email
• Universal App (iPhone, iPod Touch, and iPad)
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs
No network connectivity required.
Note: All information in this app is for informational purposes only.
Note: Should not be considered for open fan blade fans in ceilings higher than 12 feet or with fan’s rated or measured in capacity for a room size in square feet rather than cubic feet.
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What's New in the Latest Version 8.4
Last updated on May 8, 2022
Old Versions
updates for latest iOS
Show More
Version History
8.4
May 8, 2022
updates for latest iOS
8.3
Feb 4, 2019
Bug Fixes
8.2
Sep 15, 2014
Bug Fixes
8.1
Jan 12, 2014
Bug Fixes
Smaller App Size & Download Size
Smaller App Size & Download Size
8.0
Oct 10, 2013
Updated interface to be easier to read for iOS 7
Bug Fixes
Bug Fixes
7.2
Sep 19, 2013
Added support for iOS 7
7.1
Jun 26, 2013
Updated Calculators
7.0
Jun 20, 2013
Added Weight Calculators
6.0
Jan 18, 2013
Bug Fix for Reynold's Number calculators (Thanks Dale)
Updated to support iPhone 5 resolution
Updated to support iPhone 5 resolution
5.2
May 1, 2012
Updated for Retina Display
Fixed Short Distance Calculation from Nanometers to Micrometers
Fixed Short Distance Calculation from Nanometers to Micrometers
5.1
Mar 23, 2012
Name Update
Bug Fixes
Bug Fixes
5.0
Mar 9, 2012
Feature additions
Extra Calculators
Improved Overall Layout and Design
Extra Calculators
Improved Overall Layout and Design
4.0
Nov 30, 2011
Added calculations/converters for Reynolds Number for Metric units, Reynolds Number for US / Imperial units, Velocity, Viscosity, and Density
3.2
Nov 15, 2011
Updates for iOS 5
3.1
Oct 25, 2011
Fixed background of textbox for area calculator on iPad and other typos
3.0
Oct 24, 2011
Updates for iOS 5
Fixed textbox transparency bug in iOS 5
Fixed textbox transparency bug in iOS 5
2.3
Oct 4, 2011
Added conversion to/from Cubic Meters per Minute to Liter per Second
2.2
Sep 21, 2011
Bug Fix for units in Area Calculator
2.1
Sep 16, 2011
Bug fixes for Area Calculator
Updated to support international decimal separators
User interface improvements
Updated to support international decimal separators
User interface improvements
2.00
Sep 6, 2011
Fixed small memory leaks.
Interface improvements on iPad
Interface improvements on iPad
1.02
May 12, 2011
Fixed unit conversion bug for the distance conversion between feet and yards. [Distance Calculator]
1.01
Mar 31, 2011
Fixed Typo
1.00
Mar 24, 2011
Plumbing, Airflow HVAC Calcs FAQ
Click here to learn how to download Plumbing, Airflow HVAC Calcs in restricted country or region.
Check the following list to see the minimum requirements of Plumbing, Airflow HVAC Calcs.
iPhone
Requires iOS 12.0 or later.
iPad
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
Plumbing, Airflow HVAC Calcs supports English