Converter and Calculator 4+

Unit Converter & Calculator

Cider Software LLC

    • 4.7 • 246 Ratings
    • $2.99



A calculator & unit & currency converter with a super clean interface, standalone calculator, customizable color, and over 500 units in 29 categories (161 currencies). Display only the units and categories you want and put them in any order.

Fast, Easy To Use:

Pick a category, pick a unit, and then enter an amount. All other units are instantly converted to your selected unit as you enter amount.


• Full screen calculator with memory functions quickly accessible from bottom toolbar
• Customizable color
• Customizable units (display only the units & categories you want in whatever order you want)
• In-line calculations while converting (fractions, decimals, add, subtract, multiply, divide).
• Convert multiple units / currencies at once
• Both unit names and symbols shown.
• Results with up to 12 significant digits.
• Automatic formatting of decimal and thousands separators according to your Region.
• Automatic formatting of extremely large or small numbers with scientific E notation.


- Font Size
- Sound
- Color Theme
- Minimum Decimal Digits (0-12)
- Maximum Decimal Digits (0-12)
- Show Thousands Separators
- E Notation (Off, Auto, Scientific, Engineering)
- Equals Repeat
- Replace ÷ Button With /
- Replace E Button With Hidden, EE, 00, 000
- Show Memory Buttons
- Memory Store (Result, Last Input Number)
- Currency Updates
- Symbol First
- In-Line Definitions
- UK Spelling

501 Units In 29 Categories:

• Acceleration
• Angle
• Area
• Blood Cholesterol
• Blood Glucose
• Capacitance
• Currency
• Data
• Density
• Dynamic Viscosity
• Electric Charge
• Electric Current
• Electric Potential
• Electrical Conductance
• Electrical Resistance
• Energy
• Force
• Frequency
• Fuel Economy
• Length
• Mass
• Power
• Pressure
• Speed
• Temperature
• Time
• Torque
• Volume
• Weight (Mass)

URL Scheme: converterpro://

What’s New

Version 3.10.4

- Updated icon.

Ratings and Reviews

4.7 out of 5
246 Ratings

246 Ratings

VDO-Cutter ,

Everybody needs this app

I left a review a while ago and just wanted to add that that I’m still using this app and am so satisfied with it. I’m not an engineer or scientist and I use it constantly. And if I was I would really appreciate it. It’s probably my most used utility. This is the first time I have ever left a second review for anything.

G. Lewis ,

Only the best

Converter Pro is as good as it gets. There are a huge number of categories and selections to choose from. Plus you can customize it to put the items you most frequently use on top for quick access. Without a doubt, this is a must have app.

EB Hiker ,

Simple and Comprehensive

This app calculates everything easily. Pick the main category, put in the number you want to convert, and the app immediately provides your answer plus the answers for every subcategory in that main category. Elegant and easy

App Privacy

The developer, Cider Software LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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