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Extensions 
Chrome
Web store
select chrome_id_no,plugin_tag_line,plugin_name,plugin_icon,sitemap_url,oldvsnew_comment from final_chrome_totaldata_sept2022 where MATCH(plugin_name) AGAINST('+grade +calculator' IN Boolean MODE) order by users desc
PowerSchool Grade Calculator
An extension that will automatically calculate your grades for powerschool and print them on the page next to your letter grade.
Managebac Grade Calculator & More+
Grade Calculator extension and many more features for managebac.com IB DP platform
Grade Calculator for Blackboard Learn
Find out what your grade would be with certain assignments added.
PowerSchool Grade Calculator
Finals coming up? Want to bump that B+ up to an A? Know what you need with this PowerSchool Grade Calculator.
This extension will…
Managebac Grade Calculator
Managebac Grade Calculator is a tool for mainly students, but it is very useful for everybody using managebac.
It can help people…
Skyward Grade Calculator
Extension for automatically injecting the Grade Calculation hack into the Skyward grade viewer
BC Grade Calculator
Tells you the % grade and % completion of a class in Broward College's D2L website.
Grade Calculator
Compact, Fast, and Powerful easy-to-use grade calculator. This can be useful when you are stressing about grades in your browser.
Gradescope Grade Calculator
Calculates average grades on Gradescope. This extension is not affiliated with Gradescope or its parent company in any way.