Download CalConvert: Pro Calculator, the Currency Metric Unit Converter. This is the #1 app in the App Store with an advanced scientific calculator, unit conversion functionality and currency foreign exchanges rates.

Use CalConvert: Pro Calculator to solve complex math equations, figure out cooking volumes, and easily convert your cash with international foreign exchange currency rates. If you need one calculator to do everything, this is it!

Versatile, comprehensive and easy to use:

- Advanced calculator and scientific/mathematical functions in landscape mode
- History tape: All calculations are saved and can be copied, used and shared
- 27+ categories and over 600 units to convert, including metric to imperial and many more
- Access 150+ currencies with their respective country flag without the internet

Powerful tool & intuitive interface:

- Equation preview: Current equation is displayed below the result
- Easily save frequently used units of measurement and currencies
- Searchable categories and units
- Sort currency options alphabetically
- Customize CalConvert with a variety of smart, colorful skins

Available categories:

Acceleration, Angle, Area, Astronomical, Cooking Volume, Data, Data Transfer, Density, Energy, Flow, Force, Frequency, Fuel, Length, Luminance, Power, Performance, Pressure, Radiation, Speed, Temperature, Time, Torque, Typography, Viscosity, Volume, Weight, Currencies

Available currencies:

Bitcoin, Euro, US Dollar, Canadian Dollar, Chinese Yuan, British Pound, Japanese Yen, Australian Dollar, Afghan Afghani, Algerian Dinar, Argentine Peso, Albanian Lek, Angolan Kwanza, Armenian Dram, Aruban Florin, Azerbaijani Manat, Bahraini Dinar, Barbadian Dollar, Belize Dollar, Bhutanese Ngultrum, Botswanan Pula, Brunei Dollar, Burundian Franc, Bahamian Dollar and many more.

Supports 24 languages:

English, Deutsch, Dansk, Français, Nederlands, Magyar, Suomi, Português, Italiano, Español, Русский, Svenska, Slovenčina, Bokmål, Türkçe, Ελληνικ, Polski, Čeština, Română, Hrvatski, Українська, 日本語, 简体中文, 한국의

Thank you using CalConvert: Pro Calculator, the Currency Metric Unit Converter! Have questions or feedback? Your suggestion could be our next feature!

Email support:

What’s New

Version 6.3.1

A new update for CalConvert Pro is here, this release includes:

- Small but significant app optimizations and fixes
- This update fixes an issue with the subtraction function in the previous release

Thanks for using CalConvert Pro! If you like our app, please leave us a review.

Questions, feedback or issues? Email for fast and friendly support from our team!

Ratings and Reviews

4.6 out of 5
246 Ratings

246 Ratings

Inspector-Gadget ,

The Best Converter and Calculator

Updated Notes: Still the best! AWESOME!! Thanks for the update. The nicest looking, most awesome calculator in the App Store is now working full display on the iPhone X, and man it is sharp! This has more conversions functions than I have ever seen in an iPhone app. If you get the app and, for example, you want to convert lengths. Tap on the favorites button, and that reveals all of your options. Simply put stars on all the conversions you use, and they will all be there each time you switch to that function. There are so many "skins" or calculator designs, it is just way more fun to use this calculator instead of the native calculator app. Both calculator and conversion calculator work great on the Apple Watch.
I found this app because all of the other conversion calculators I've had for years are not working anymore, and I’m glad because my search lead me to this one! I use this calculator everyday at work when reviewing construction plans. If you need one calculator to do everything, and look awesome while using it, this is the one!

Developer Response ,

Hi there,

Thank you for your review! We have a new update that fixes the iPhone X cut off issue. Thanks for using CalConvert Pro!


Gogai5 ,

I am not satisfied with this product

I am not satisfied with this product.
The version of this calculator which I paid had a choice of Theme in which the background is brighter and the numbers are printed in black.
Now the same topics are there but whenever I choose a theme in black letters, the black letters do not appear on the display.

NorthMI ,

Good on phone

This app has some nice features and a great uncluttered interface on phone and tablet. Plenty of conversions and scientific/math functions. However, their are no scientific functions available for the watch. I use square roots quite a bit and it would be nice to have a few more common functions available for the watch. Also a fraction calculator and tip calculator would be great.


Calculator, Taschenrechner, Calculatrice, Calculadora, LLC.
248.5 MB

Requires iOS 9.0 and watchOS 2.1 or later. Compatible with iPhone, iPad, and iPod touch.


English, Chinese, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian

Age Rating


  • Family Sharing

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

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