Calculator
A simple calculator that remembers your last calculation. You can close it at any time and reopen it without losing your work.
2,550 users
Calculator
handy tool that adds a calculator to your web browser, allowing you to quickly perform mathematical calculations while browsing.
241 users
pp calculator
Calculates the osu! pp values directly in your web browser
3,306 users
Foxy Calculator
A Firefox port of the popular Cloudy Calculator. Supports text-based calculations, unit conversion, trigonometry, google rich results, and much more.
421 users
Simple Calculator
A simple and very lite calculator for your browser!
377 users
Calculator Whiz & Custom Web Search
Add the Calculator Whiz & Custom Web Search extension to get a free online calculator by clicking the favicon on the browser toolbar & enjoy Yahoo® search
2,195 users
Youtube Playlist Duration Calculator
An add-on that calculates & displays the total duration of a youtube playlist.
1,839 users
Simple-Calculator
a basic simple math operator add-on
110 users
Faceit Elo Calculator
This adds additional information about the elo gained or lost to the Faceit CS:Go match making system. When a is voting or in progress this will display an estimated amount of elo gained or lost for both teams. Which ever team wins gains the amount
184 users
Programmer's Calculator
Powerful command-line calculator. Converts numbers between different number bases (Hex, Dec, Oct, Bin, Exp) and way more.
76 users
RPN Calculator
This extension adds a convenient reverse Polish notation (RPN) calculator as a browser action button. Also called postfix, RPN calculators take their operators after the operands. If you've used HP calculators, this extension is for you.
34 users
osu! PP Calculator
Calculates pp values for osu! beatmaps page.
39 users
Amazon FBA Calculator
The Ultimate Amazon FBA Profit Calculator - Simplify Your Business Today!!
58 users
Axie Damage Calculator
This extension helps to calculate the damage done by an Axie
63 users
AO3 Kudos-Hits Calculator
Extension to add kudos-per-hits ratio to ArchiveOfOurOwn.org
100 users
100+ Calculators
Calculator Firefox Addon from calc.wtf - 100+ Calculators in one App
47 users
Steam Revenue Calculator
This plugin shows the game's revenue inside the Steam store page.
97 users
Better Calculator
Browser toolbar calculator, including arithmetic, exponents, trigonometry, and logarithms, respecting the order of operations.
27 users
Files MD5 SHA1 Calculate & Compare
Files hash digest calculator to verify download integrity compared to publishers original calculation results. Files MD5, SHA1, SHA2 checksum calculation and comparison easy within the browser.
381 users
Trade Value Calculator
Interactive trade value calculator with values computed by /u/PeakedInHighSkool on the fantasyfootball subreddit
46 users
Amazon FBA Calculator Widget
Amazon FBA Calculator Widget. Support Amazon.co.jp. Amazon の商品ページでアイコンをクリックすると、商品・単価が設定された状態で FBA 料金シミュレータページが開きます。
185 users
Calculator Search
With this addon, you can get instant answers to math queries as you type in the addressbar. Simply type "calc" and your math query. Supports order of operations! Limitations: does not support parenthesis notation, some more complex operations
40 users
Youtube Playlist Duration Calculator
This extension will tell you the total duration of the youtube playlist. WARNING : You need to scroll down the whole playlist to get exact time
131 users
Easy Percentage Calculator
Calculate percentages based on inputs such as ratios, fractions, grades and percentage increase/decrease.
26 users
Scientific Calculator
Scientific Calculator for Firefox
27 users