Converter of Units
Measurements, dates and tank
Free
5.2.0for iPhone, iPad and more
Age Rating
Converter of Units Screenshots
About Converter of Units
The unit converter feature from our popular aio Calculator is now available as a standalone app. Always free and without ads.
It's an easy to use and modern converter with a unique combination of features which include:
• Available on all iPad, iPhone and iPod devices
• Sidebar and Tab bar for easier navigation and sharing of data
• Multiple Windows
• Stage Manager
• Drag and Drop from the Sidebar to the edge of the screen to create new windows
• Context Menus
• Quick Start Guide
• Light and Dark appearance
• Multitasking
• Full support for drag and drop
• Quick Notes
• Capture text
• Keyboard shortcuts
• Pointer interaction
• Two finger swipe for quick editing in Unit Converter and History
• Slider for precision control
• Undo and redo
• HomeScreen icon for quick actions
• Spotlight search
• Accessibility features like VoiceOver and Dynamic Type (larger text)
• Allows you to share results; including using AirDrop
• Takes advantage of the larger display in iPad
• Settings to customize the app
• Conversions saved and restored for all measurements
• Quick Convert feature
Has close to 500 units in the following 37 measurements:
• Area
• Acceleration
• Angle
• Computer Data Storage
• Computer Data Rate
• Currency
• Density
• Energy
• Electric Vehicle Efficiency
• Electrical Current
• Electrical Voltage
• Electrical Charge
• Electrical Resistance
• Electrical Inductance
• FlowRate-Liquid
• FlowRate-Dry
• Force
• Frequency
• Fuel Economy
• Illumination
• Ladies Shoe Size
• Length
• Luminance
• Mens Shoe Size
• Magnetic Field Strength
• Magnetic Flux
• Magnetic Flux Density
• Magnetomotive Force
• Mass / Weight
• Power
• Pressure
• Speed / Velocity
• Temperature
• Time
• Torque
• Volume - Liquid Capacity
• Volume - Dry Capacity
Date calculators
• Calculate the difference between two dates
• Add (or subtracting) from a given date
Tank Capacity
• Horizontal Cylinder
• Vertical Cylinder
• Rectangular
• Horizontal Oval
• Vertical Oval
• Horizontal Capsule
• Vertical Capsule
• Sphere
Info feature
• Detailed description of the app available in all features
• Table of contents and search allow you to find topics of interest
Email requests to have more measurements or units added.
Future updates will continue to add more features.
Enjoy our app that, as always, is free and without ads!
It's an easy to use and modern converter with a unique combination of features which include:
• Available on all iPad, iPhone and iPod devices
• Sidebar and Tab bar for easier navigation and sharing of data
• Multiple Windows
• Stage Manager
• Drag and Drop from the Sidebar to the edge of the screen to create new windows
• Context Menus
• Quick Start Guide
• Light and Dark appearance
• Multitasking
• Full support for drag and drop
• Quick Notes
• Capture text
• Keyboard shortcuts
• Pointer interaction
• Two finger swipe for quick editing in Unit Converter and History
• Slider for precision control
• Undo and redo
• HomeScreen icon for quick actions
• Spotlight search
• Accessibility features like VoiceOver and Dynamic Type (larger text)
• Allows you to share results; including using AirDrop
• Takes advantage of the larger display in iPad
• Settings to customize the app
• Conversions saved and restored for all measurements
• Quick Convert feature
Has close to 500 units in the following 37 measurements:
• Area
• Acceleration
• Angle
• Computer Data Storage
• Computer Data Rate
• Currency
• Density
• Energy
• Electric Vehicle Efficiency
• Electrical Current
• Electrical Voltage
• Electrical Charge
• Electrical Resistance
• Electrical Inductance
• FlowRate-Liquid
• FlowRate-Dry
• Force
• Frequency
• Fuel Economy
• Illumination
• Ladies Shoe Size
• Length
• Luminance
• Mens Shoe Size
• Magnetic Field Strength
• Magnetic Flux
• Magnetic Flux Density
• Magnetomotive Force
• Mass / Weight
• Power
• Pressure
• Speed / Velocity
• Temperature
• Time
• Torque
• Volume - Liquid Capacity
• Volume - Dry Capacity
Date calculators
• Calculate the difference between two dates
• Add (or subtracting) from a given date
Tank Capacity
• Horizontal Cylinder
• Vertical Cylinder
• Rectangular
• Horizontal Oval
• Vertical Oval
• Horizontal Capsule
• Vertical Capsule
• Sphere
Info feature
• Detailed description of the app available in all features
• Table of contents and search allow you to find topics of interest
Email requests to have more measurements or units added.
Future updates will continue to add more features.
Enjoy our app that, as always, is free and without ads!
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What's New in the Latest Version 5.2.0
Last updated on Feb 18, 2024
Old Versions
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added feet Inch unit in Length
• Added ability to favorite measurements (via context menu)
• General improvements and corrections
Recent changes include:
• Added feet Inch unit in Length
• Added ability to favorite measurements (via context menu)
• General improvements and corrections
Show More
Version History
5.2.0
Feb 18, 2024
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added feet Inch unit in Length
• Added ability to favorite measurements (via context menu)
• General improvements and corrections
Recent changes include:
• Added feet Inch unit in Length
• Added ability to favorite measurements (via context menu)
• General improvements and corrections
5.1.0
Nov 22, 2023
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Updated for iOS/iPadOS 17
• General improvements and corrections
Recent changes include:
• Updated for iOS/iPadOS 17
• General improvements and corrections
5.0.1
Jan 12, 2023
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• General improvements and corrections
Recent changes include:
• General improvements and corrections
5.0.0
Nov 29, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Updated for iOS 16.x, iPhone 14 and Stage Manager for iPadOS 16
• Use iOS 16 Find feature in Information
• Added Electric Vehicle Efficiency to Measurements
• Optimized calculations in currency conversion feature
• General improvements and corrections
Recent changes include:
• Updated for iOS 16.x, iPhone 14 and Stage Manager for iPadOS 16
• Use iOS 16 Find feature in Information
• Added Electric Vehicle Efficiency to Measurements
• Optimized calculations in currency conversion feature
• General improvements and corrections
4.2.8
Sep 26, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected occasional problem with no units showing if another measurement was only showing favorites
• General improvements and corrections
Recent changes include:
• Corrected occasional problem with no units showing if another measurement was only showing favorites
• General improvements and corrections
4.2.7
Aug 31, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected problem with create new window button
• General improvements and corrections
Recent changes include:
• Corrected problem with create new window button
• General improvements and corrections
4.2.6
Aug 10, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Improved scrolling performance of units in measurements and eliminated many occurrences of pasteboard banner
• General improvements and corrections
Recent changes include:
• Improved scrolling performance of units in measurements and eliminated many occurrences of pasteboard banner
• General improvements and corrections
4.2.5
Aug 9, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected problem caused by missing USD currency
• General improvements and corrections
Recent changes include:
• Corrected problem caused by missing USD currency
• General improvements and corrections
4.2.4
Jul 6, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected problem with createWindow button disappearing when Info modal sheet was shown
• Corrected problem with show/hide toolbar context menu in Tank Capacity (was not always reflecting the correct state)
• Mac Catalyst version now available
• General improvements and corrections
Recent changes include:
• Corrected problem with createWindow button disappearing when Info modal sheet was shown
• Corrected problem with show/hide toolbar context menu in Tank Capacity (was not always reflecting the correct state)
• Mac Catalyst version now available
• General improvements and corrections
4.2.2
Mar 14, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected problem with currency not always using most recent data
• General improvements and corrections
Recent changes include:
• Corrected problem with currency not always using most recent data
• General improvements and corrections
4.2.1
Mar 8, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected problem with date add or subtract sometimes not scrolling after entering value in table
• General improvements and corrections
Recent changes include:
• Corrected problem with date add or subtract sometimes not scrolling after entering value in table
• General improvements and corrections
4.2.0
Mar 5, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added use of Quick Note (enable in Settings)
• Added use of text capturing in text field and expression editor
• Added keyboard shortcuts (hold down Command)
• Added create new window using context menu or pinch on sideBar
• Added pointer interaction throughout app
• Modal views can now have their size adjusted to medium and large using the grabber
• General improvements and corrections
Recent changes include:
• Added use of Quick Note (enable in Settings)
• Added use of text capturing in text field and expression editor
• Added keyboard shortcuts (hold down Command)
• Added create new window using context menu or pinch on sideBar
• Added pointer interaction throughout app
• Modal views can now have their size adjusted to medium and large using the grabber
• General improvements and corrections
4.1.0
Jan 22, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added iPadOS 15 Prominent style of window mode (looks like a Form Sheet) when creating new window
• Added iPadOS 15 context menu option to create new window to all sidebar entries that allow drag and drop
• Added iPadOS 15 pinch (out) gesture to create new window to all sidebar entries that supported drag and drop
• Other improvements and corrections
Recent changes include:
• Added iPadOS 15 Prominent style of window mode (looks like a Form Sheet) when creating new window
• Added iPadOS 15 context menu option to create new window to all sidebar entries that allow drag and drop
• Added iPadOS 15 pinch (out) gesture to create new window to all sidebar entries that supported drag and drop
• Other improvements and corrections
4.0.2
Jan 8, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected occasional crash when using Measurements
• Corrected problem with unit's favorite setting which was not being saved
• Other improvements and corrections
Recent changes include:
• Corrected occasional crash when using Measurements
• Corrected problem with unit's favorite setting which was not being saved
• Other improvements and corrections
4.0.1
Jan 6, 2022
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Email now works with other email apps in addition to Apple email
• Search now works in Information
• Other improvements and corrections
Recent changes include:
• Email now works with other email apps in addition to Apple email
• Search now works in Information
• Other improvements and corrections
4.0.0
Dec 28, 2021
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added Tank Capacity feature with support for 8 eight different tank types
• Date options are now selected on top and not on a tab bar
• Improvements in use of Home screen shortcuts and Spotlight search
• Added use of standard sidebar navigation
• Use favorites for selecting visible units
• Added info feature with more thorough description of app
• Initial support for iOS 15 and new Apple devices
• Other improvements and corrections
Recent changes include:
• Added Tank Capacity feature with support for 8 eight different tank types
• Date options are now selected on top and not on a tab bar
• Improvements in use of Home screen shortcuts and Spotlight search
• Added use of standard sidebar navigation
• Use favorites for selecting visible units
• Added info feature with more thorough description of app
• Initial support for iOS 15 and new Apple devices
• Other improvements and corrections
3.4.1
Jan 26, 2021
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected problem with conversion between Pascal and MegaPascal (Pressure and Stress)
• Added kiloPascal to Pressure and Stress
• Other improvements and corrections
Recent changes include:
• Corrected problem with conversion between Pascal and MegaPascal (Pressure and Stress)
• Added kiloPascal to Pressure and Stress
• Other improvements and corrections
3.4.0
Nov 7, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Improved for new iPhone 12 and iOS 14
• Context menus in Date Calculators allow selecting compact o large date picker
• Other improvements and corrections
Recent changes include:
• Improved for new iPhone 12 and iOS 14
• Context menus in Date Calculators allow selecting compact o large date picker
• Other improvements and corrections
3.3.1
Sep 26, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Improvements in undo and redo
• Other improvements and corrections
Recent changes include:
• Improvements in undo and redo
• Other improvements and corrections
3.3.0
Sep 21, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Improvements in use of multiple windows (iPad OS only)
• Added Cubic Millimeter, Metric Teaspoon and Metric Tablespoon to Volume - Liquid units
• Added use of context menus throughtout the app
• Added date format button to navigation bar in date calculators
• Corrected occasional crash when accessing currency for the first time
• Other improvements and corrections
Recent changes include:
• Improvements in use of multiple windows (iPad OS only)
• Added Cubic Millimeter, Metric Teaspoon and Metric Tablespoon to Volume - Liquid units
• Added use of context menus throughtout the app
• Added date format button to navigation bar in date calculators
• Corrected occasional crash when accessing currency for the first time
• Other improvements and corrections
3.2.0
Aug 10, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added new button (iOS 13) for setting of precision using a slider. Button shows current precision.
• Added Nautical miles to units in Length measurement
• Other improvements and corrections
Recent changes include:
• Added new button (iOS 13) for setting of precision using a slider. Button shows current precision.
• Added Nautical miles to units in Length measurement
• Other improvements and corrections
3.1.3
Aug 2, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Corrected occasional crash in iOS 12.x
• Other improvements and corrections
Recent changes include:
• Corrected occasional crash in iOS 12.x
• Other improvements and corrections
3.1.2
Jul 23, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Input field no longer shakes when entry starts with a decimal point
• Other improvements and corrections
Recent changes include:
• Input field no longer shakes when entry starts with a decimal point
• Other improvements and corrections
3.1.1
Jul 17, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Added Marla to Area units.
• Corrected problem with Spotlght search
• Corrected crash that could occur during onboaridng if onboarding button touched while onboarding has been hidden
• Other improvements and corrections
Recent changes include:
• Added Marla to Area units.
• Corrected problem with Spotlght search
• Corrected crash that could occur during onboaridng if onboarding button touched while onboarding has been hidden
• Other improvements and corrections
3.1.0
Jul 12, 2020
Thank you for using our app. It's regularly improved and modernized to better serve you.
Recent changes include:
• Improved support for multiple windows in iPadOS (drag any measurement or feature to the left or right edge to create another window)
• Corrected crash that occurred when alert controller shown in two different windows (iPad only)
• Corrected problem with Search in app (iPad only)
• Corrected problem that caused toolbar to occasionally not show in the detail view (iPhone only)
• Corrected crash that could occur during onboaridng if onboarding button touched while onboarding has been hidden
• Homescreen shortcuts now show value in front of unit name
• Other improvements and corrections
Recent changes include:
• Improved support for multiple windows in iPadOS (drag any measurement or feature to the left or right edge to create another window)
• Corrected crash that occurred when alert controller shown in two different windows (iPad only)
• Corrected problem with Search in app (iPad only)
• Corrected problem that caused toolbar to occasionally not show in the detail view (iPhone only)
• Corrected crash that could occur during onboaridng if onboarding button touched while onboarding has been hidden
• Homescreen shortcuts now show value in front of unit name
• Other improvements and corrections
Converter of Units FAQ
Click here to learn how to download Converter of Units in restricted country or region.
Check the following list to see the minimum requirements of Converter of Units.
iPhone
Requires iOS 15.0 or later.
iPad
Requires iPadOS 15.0 or later.
iPod touch
Requires iOS 15.0 or later.
Converter of Units supports English, Spanish
