A simple calculator that remembers your last calculation. You can close it at any time, and reopen it without losing your work.

Latest Version

Version
1.8.2
Update
November 18, 2022
Size
1.5MiB
Developer
linangdata.com
Category
Users
100,000+
Rating
4.10484 ★
Manifest Version
3
Web Store Status
Languages Support
English
See more
Permissions
See more

Calculator Extension

A simple calculator for basic arithmetic.

Adds a calculator icon to your browser toolbar. You can open the calculator while browsing any web page. It remembers your last calculation so you can close it at any time and reopen without losing your work.

Features:

• Compact and available when you need it right from the Chrome toolbar
• Remembers your previous calculation when re-opened
• A selectable history records your last 10 calculations
• Use the keyboard number pad for calculations
• Enter key for \"=\" and \"c\" for clear
• Del/Backspace key to edit calculation
• Copy results or calculations to the clipboard
• Re-sizable - remembers you setting when you close the calculator
• It's Free!

Functions (keyboard shortcuts):

• Number Pad or 0-9 for Number Entry
• Equals (= or Enter)
• Clear (\"c\")
• Delete (del/backspace) - removes last character you typed
• Copy to clipboard (ctrl-c)
• Divide (/)
• Times (*)
• Minus (-)
• Plus (+)
• Percent (% or F1).
Examples:
50x20% means 20 percent of 50 (or use the shorthand 50%20) = 10
10-20% means subtract 20% of 10 from 10 = 8
10+12% means add 12% of 10 to 10 = 11.2
• Square Root (F2).
Example, 9√ = 3, or 3+9√ = 9
• Square x²
Example, 9² = 81
• Reciprocal ⅟x
Example, ⅟4 = 0.25
• +/- (F3) - negates the value
• Parentheses to control order of calculations.
Example: (3+2)*4 = 20 without parenthesis the multiplication happens first: 3+2*4= 11
• Decimal point

Changes:
• 1.8.2 - Improved layout for history menu
• 1.8.0 - New functions squared and reciprocal, parenthesis to control order of calculations, user experience updates
• 1.7.9 - update to manifest V3
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "Calculator", "short_name": "Calculator", "description": "A simple calculator that remembers your last calculation. You can close it at any time, and reopen it without losing your work.", "version": "1.8.2", "offline_enabled": false, "icons": { "16": "css/icons/16x16.png", "24": "css/icons/24x24.png", "32": "css/icons/32x32.png", "48": "css/icons/48x48.png", "128": "css/icons/128x128.png" }, "permissions": [], "action": { "default_icon": { "19": "css/icons/19x19.png", "38": "css/icons/38x38.png" }, "default_popup": "index.html", "default_title": "Calculator" } }
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How to download and manually install Calculator extension for Chrome

Looking for a way to install Calculator extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Calculator extensions manually, this article outlines two simple methods to effortlessly install Calculator extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Calculator extension and manually install through Drag &Drop

If you ever need to manually install a Calculator extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Calculator Extension by clicking the "Download CRX" button on the website.

Look for the Calculator extension you wish to install. Go to the website and download the Calculator extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Calculator extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Calculator extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Calculator extension for Chrome and install in Developer Mode

This is another method to install Calculator extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Calculator extension file

Select and download the Calculator extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Calculator extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Calculator extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Calculator extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Calculator extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Dagurui (ID: 000000c1324150cc) Voted 5 ★ - Updated 09/01/2022 Bonita simple y útil.

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ゆっきー (ID: 0000000309ae10cc) Voted 4 ★ - Updated 04/20/2022 とても使い易く便利。 しかし電卓を閉じても前回の計算結果が残っているので、毎回Cを押して消さなければならない。 電卓を閉じたら計算結果をクリアして欲しい。 Very easy and convenient to use. However, when I close the calculator, the result of the previous calculation is still there, so I have to press C to delete it each time. I would like the calculation results to be cleared when the calculator is closed.

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Emily Liu (ID: 00000067296f1bab) Voted 4 ★ - Updated 02/15/2022 it's cool but i would like a delete button in case i mess up on calculating so i don't have to clear the whole thing.

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Gia Kỳ Nguyễn (ID: 000000751cac5592) Voted 5 ★ - Updated 01/19/2022 Ok

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Rose Hanchar (ID: 000000712975dca2) Voted 4 ★ - Updated 05/08/2021 The percentage key does not work.