Calculator

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

As of June 2026, Calculator has 80,000 users and a 4.10/5 rating from 124 reviews in the Workflow & Planning category.

Usersdown 11.1 percent11.1%
80.0K
80,000
Ratingdown 0.2 percent0.2%
4.10
124 reviews
Reviewsup 0.8 percent+0.8%
124
Version
1.8.3
Manifest V3
90-day change · In the last 90 days this extension lost 10.0K users.

History

5 snapshots

Tracking since Apr 5, 2026.

91.6K80.0K68.4KApr 5, 2026Jun 10, 2026
View as table
DateUsersRatingReviewsVersion
Apr 5, 202690.0K4.111231.8.3
Apr 8, 202670.0K4.111231.8.3
Apr 16, 202680.0K4.111231.8.3
May 7, 202690.0K4.111231.8.3
Jun 1, 202690.0K4.101241.8.3
Now80.0K4.101241.8.3

Permissions & access

Permissions
None declared
Host access
None declared

Screenshots

Calculator screenshot 1Calculator screenshot 2Calculator screenshot 3

About

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:
• 1.8.3 - Minor fixes
• 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

Technical

Version
1.8.3
Manifest
V3
Size
2.29MiB
Min Chrome
88
Languages
1
Featured
Yes

Metadata

ID
hcpbdjanfepobbkbnhmalalmfdmikmbe
Developer ID
u0d278c1b85dfdeb85a4ec169d3ee8c1f
Developer Email
[email protected]
Created
Dec 8, 2015
Last Updated (Store)
Mar 10, 2026
Last Scraped
Jun 10, 2026

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Data sourced from the Chrome Web Store · last verified Jun 10, 2026.