Download CalConvert, the #1 advanced scientific calculator and currency/unit converter in the App Store. CalConvert supports iPhone, iPhone X, iPad and Apple Watch.

Simple, free and easy-to-use. Solve complex math equations, figure out cooking volumes, and have international foreign currency exchange rates all at your fingertips.

*Useful & Powerful Tool
- Advanced calculator and scientific/mathematical functions.
- History Tape: All calculations are saved and can be copied, used and shared.
- 27+ categories and over 600 units to convert; metric to imperial and many more.
- Access 150+ currencies with their respective country flag without the internet.

*Elegant & Intuitive Interface
- Equation Preview: Current Equation is displayed below the result.
- Easily save frequently used units of measurement and currencies.
- 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 for using CalConvert! Have questions, problems or feedback?
Email Support:
Visit us:

What’s New

Version 6.6.5

Thanks for updating to the latest version of CalConvert! Here’s what’s new:

- Introducing CalConvert PRO: one-time purchase to unlock all 18 themes, access Premium Support and more!
- Added manual refresh action so you can pull down to refresh currencies if they are not auto-updating.
- Squashed a bug on Settings menu where some users reported issues.
- Enhanced text color on Themes screen to be more user friendly.
- Overall performance updates & stability improvements.

Feedback? Issues? Contact us at for fast and friendly support.

Ratings and Reviews

4.6 out of 5
5.3K Ratings

5.3K Ratings

jmac93427 ,

What’s the big deal?

Sure, I gave it 5 stars. But that’s because the app does what it’s supposed to do. It’s a calculator. I don’t understand what all the hype is about. Lotus 123 was doing this back in the 1990’s. Texas Instruments was doing this in the 1970’s. Hell, the abacus dates back eons. Sure, this app has more features, but let’s be serious, it’s a calculator for the iPad - not a contribution to the welfare of mankind!

Developer Response ,

Hi there,

Thank you for your feedback and rating! We appreciate your usage of the app; we hope you're finding it useful.

diggity.doyle ,

It gets the job done, but could be better.

So I downloaded this app to give it a try. The ads were beyond intrusive and annoying, which made it hard to check out the app properly. So I figured it wouldn’t hurt to pay a couple bucks to get rid of the ads. I didn’t pay attention to the price beforehand, so imagine my surprise. My bad. Anyway, it’s a pretty decent calculator. I’m coming from the galaxy note, so I really missed having an all in one calculator and Unit converter. This one is okay, with just a few annoyances. First, the sound effects are very jarring. Would be better if the key presses sounded more like the iPhone default keyboard sound, in my opinion. Also, the +,-,/, and X buttons on the calculator seem to be in odd places compared to most other calculators I’ve used. Not saying it’s wrong, but it will take some getting used to.

Developer Response ,

Hello! Thanks for taking the time to write your feedback. We'll take note of this for consideration and review of the features in the app. If there's anything else we can assist you with, please feel free to send an email to so we can assist you.

AkumaTenshi_HI ,

Would be useful, except for ad format.

Okay, let’s be fair: No one expects a company to develop an app with no reward for their I expect ads, and there’s nothing wrong with that. If I like the app, I may purchase the ad-free version.

The problem: This apps ads are time-consuming and intrusive. I need to use a conversion app during time-sensitive preflight planning, to convert different charts with different determine if it’s safe to fly in remote areas. I don’t have 30-60 seconds every few minutes to watch an ad, nor do I need to lose my train of thought when I’m making decisions that could literarily kill me or others.

So I cannot “try before I buy” with the ads this app uses—I cannot “give it a go,” the ads are too distracting for that.

Developer Response ,

Hello! Thanks for taking the time to write your feedback. We'll take note of this for consideration and review of the features in the app. If there's anything else we can assist you with, please feel free to send an email to so we can assist you.


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

Requires iOS 11.0 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
In-App Purchases
  1. Remove Ads $16.99
  2. School Pack $1.99
  3. All Skins $4.99


  • Family Sharing

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

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