CalcKit: All-In-One Calculator

Contains adsIn-app purchases
4.7
12.7K reviews
1M+
Downloads
Content rating
PEGI 3
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About this app

Introducing CalcKit – Your Ultimate Calculation Companion!

With over 150 calculators and converters, including a powerful scientific calculator, CalcKit has everything you need for any calculation task. Perfect for students, professionals, or anyone needing quick and accurate calculations.

SCIENTIFIC CALCULATOR
• Editable input & cursor
• Copy & paste support
• Calculation history
• Memory buttons
• Function graphing
• Floating calculator

150 CALCULATORS & CONVERTERS
• Algebra, Geometry, Unit Converters, Electronics, Finance
• Currency converter with 180 currencies (available offline)
• Instant results delivered as you type
• Smart search for fast navigation
• Create shortcuts on home screen

CUSTOM CALCULATORS
• Create your own calculators
• Unlimited variables
• Detailed tutorial with examples

CalcKit isn't just another calculator app; it's an all-in-one toolkit meticulously designed to fit your unique requirements. We understand the importance of precision, which is why CalcKit ensures accuracy and delivers instant results for a plethora of specialized tools. From algebra and geometry to unit conversions and finance calculations, we leave no stone unturned.

For students, CalcKit is a game-changer, offering essential tools like the scientific calculator, triangle calculator, Pythagorean theorem solver, Ohm's law calculator, and more. Our intuitive interface, editable input, and comprehensive calculation history ensure you're always in control.

But CalcKit isn't just functional; it's incredibly convenient too. With features like memory buttons, a floating scientific calculator, and intelligent search functionality, efficiency is always at your fingertips. Plus, with the ability to create custom calculators tailored precisely to your needs, the possibilities are endless.

And the best part? CalcKit is completely free to use! Whether you're a seasoned calculator pro or just starting out, CalcKit is your go-to solution for all your calculation needs.
Updated on
Nov 22, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.7
12K reviews
TriniKitti “Triki” Nya
November 14, 2025
Am I tripping or did you lock a feature I used for free before behind a paywall??? I don't remember opting into a trial. Addendum: So I kinda sorta DID opt to a free trial for an hour by watching an ad. You can have premium for an hour by watching an ad. Keep in mind that, evidently, you WILL forget that you're using premium features temporarily.
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CalcKit.io
November 12, 2025
Hi, no free features have been moved behind a paywall. If something you were using isn't working, please email support@calckit.io with details about which feature it is and I'll help figure out what's going on.
Marcus
October 10, 2025
Pretty good, but a tag system to sort things would be useful. Currently there's no better grouping than "Geometry" to search for geometric volumes. And things like cube, prism, pyramid don't show up when searching for volume.
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Grace Woo
August 1, 2021
The interface was clean and intuitive. However, it's very unsophisticated. For example, it has a function to change fractions to its lowest improper form, but you can't use it as a fraction calculator or even allow input of a decimal number to get its equivalent as a fraction. Another example of how deficient this app is, is its interest calculator which doesn't allow input of number of periods, so that it's only able to calculate annual interest and not monthly or daily.
15 people found this review helpful
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CalcKit.io
August 2, 2021
Hello, Thanks for the review. Starting from a few months ago, the calculator displays both decimal and fraction result at the same time, so you don't really need to use the "fraction simplifier" and "decimal to fraction" tools anymore. As for the interest calculator, I totally agree with you and it is something that will be improved in the future.

What’s new

CalcKit 8.0

- Streamlined interface - 30% fewer visible tools
- Improved search results
- New "Show hidden tools" setting
- Enhanced Triangle Calculator
- Faster loading and smoother scrolling
- Updated translations

We value your feedback! Contact us with problems, suggestions or requests.