The ideal tool for travelers, students, professionals and anyone who needs to convert currencies and measurement units.
ConverterBox is a user-friendly universal unit converter with a twist: unlike other unit converters, it provides definitions for every conversion unit.

What makes ConverterBox different:

—Instant results as you type: ConverterBox provides results for all category units instantly as you type a new value. Most other unit converters only show you two units at a time and require you to go through too many steps before you see the results of the calculation.

—Informative: Learn about each unit without the need to open an external app or a web browser, and without the need to be online. Simply tap the question/info button next to the unit you want to learn about and a description of that unit will pop up.

—Customizable: Add, remove and sort units and categories according to your preference.

—Up-to-date currency exchange information — perfect for traveling, home or office use. Stores the latest update so you don't have to be online to calculate the exchange rates.

Categories include:
—SI system prefixes
—Computer data sizes
—Radix (numeral base)
—Many more are in the works for the upcoming updates!

—Numeral base (radix) conversions: Lets you convert between binary, decimal, hexadecimal and 32 other numeral base systems! Supports every base from 2 (binary) to 36 (Hexatrigesimal) and fractions in each one of those systems!

With a list of over 300 units and definitions, this is the perfect tool for students, teachers and professionals!

What’s New

Version 2.1.0

- Ready for iOS 11
- Fixed currency exchange rates not updating

Ratings and Reviews

5.0 out of 5
4 Ratings

4 Ratings

rk85097 ,

Best app out there

I got a recommendation from a friend about this app. It's well worth the money! I got a long list of possible conversions and the interface is very user friendly and clear. I been using other apps but this one is my winner. Thank you for a great product!

notthatinterested01 ,

Handy App!

This app is great if you need to convert units regularly. It is fast and the results come up right away. I'm a student and this app makes homework so much easier. Highly recommended!

moretalme ,

Great app

Helpful app. I'll be using it a lot. Works smoothly, easy to use and the explanations are a really nice touch.


5.8 MB

Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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