4.5
970K reviews
Content rating
Rated for 3+
1B+
Downloads
Content rating
Rated for 3+
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About this app

[Key features]
Perform four fundamental operations and engineering calculations.

To start the engineering calculator, tap the engineering calculator icon.

To check the calculation history, tap the calculation history icon. To close the calculation history panel, tap the keypad icon.

You can use the previously inputted formulas. Tap the formula you need from the calculation history.

[Additional features]
To convert units, tap the unit calculator button. You can easily convert various types of units, such as area, length, and temperature.

This software uses the Apache License 2.0. The details can be found at http://www.apache.org/licenses/LICENSE-2.0.
Updated on
Apr 1, 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
No data collected
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Ratings and reviews

4.5
946K reviews
Amy Crawford
June 22, 2026
I use my calculator almost everyday for work. since the new update I keep messing up my calculations because they switched around all the buttons. I hate it. I want it to go back to the old layout I have been using for years. I used to be able to zoom through everything, but now I have to chicken peck my numbers and double check I am clicking on the right stuff. I need to the old layout back!
2 people found this review helpful
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Victoria Burson
July 26, 2024
Wonderful free calculator app, with no ads, and you can use it with no internet connection. I only use it for basic math problems, so if you need to use it for complicated problems, I'm not sure if this will work for you. My favorite part is the memory (history), so you can see what you did previously and recall certain numbers, and can clear it completely and easily whenever you want.
5,480 people found this review helpful
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Bronwen Aspeling de Villiers
March 25, 2022
I have happily used this app for years, with no problems, but then, the clicking sound came on without the option to disable. Thanks to some clever people that have left reviews, I have FINALLY been able to switch it off! Press either of of your volume buttons (up or down), tap on the 3 dots (menu) on top of the volume level and switch off the system sounds.
1,441 people found this review helpful
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What’s new

A few bugs have been fixed.