# Quick floating web calculator

> A lightweight floating calculator for any webpage—always accessible. Inspired by the Japanese web app web電卓.jp.

Canonical page: [https://chrome-stats.com/d/quick-floating-web-calculator](https://chrome-stats.com/d/quick-floating-web-calculator)

## Overview

- **ID:** `quick-floating-web-calculator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** webcalculator
- **Category:** shopping,games-entertainment
- **Daily users:** 1
- **Weekly downloads:** 1
- **Version:** 1.0
- **Last updated:** 2025-05-21
- **First published:** 2025-05-18
- **Size:** 14 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/quick-floating-web-calculator/)
- **Website:** [https://web電卓.jp/](https://xn--web-ki3ex602a.jp/)

## Description

Add a compact, floating calculator to any webpage—perfect for quick calculations while browsing.
This Firefox extension was inspired by the clean and efficient interface of <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/3de91d0cbb384d3c595c8f94deb93bbc55a8bbeeb03c85aedfc233f2708400ca/http%3A//www.web%E9%9B%BB%E5%8D%93.jp" rel="nofollow">www.web電卓.jp</a>, a popular web-based calculator in Japan.

With this extension, you can:

Launch a simple calculator with one click

Use it without switching tabs

Perform basic arithmetic (+, –, ×, ÷) directly on any site

Quickly close or reopen it as needed

Enjoy a smooth, non-intrusive user experience

Whether you're comparing prices, working on online spreadsheets, or studying math, this calculator stays with you—right on the page.

## Rankings

- #118,102 — Overall
- #181 — spreadsheet
- #187 — calculator
- #221 — calculus

## Permissions and access

### Permissions

- `activeTab`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- This extension support email may not be valid

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/quick-floating-web-calculator)