# Calculator

> A simple and modern calculator add-on that remembers what you were just calculating.

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

## Overview

- **ID:** `s-calculator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Mono
- **Category:** other
- **Daily users:** 136
- **Weekly downloads:** 6
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 17
- **Last updated:** 2025-01-03
- **First published:** 2024-01-14
- **Size:** 303 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/s-calculator/)
- **Website:** [https://github.com/iris-web-lab/calc/issues](https://github.com/iris-web-lab/calc/issues)

## Description

Calculator is a simple and modern Chrome extension that allows you to perform calculations without leaving your current webpage. It remembers your previous calculation, making it easy to pick up where you left off. Access the calculator easily via a pop-up by clicking its icon or use keyboard shortcuts (Alt+Shift+C or Shift+Alt+C) for quick entry.

The extension supports both mouse and keyboard inputs, catering to your preferred style of interaction. For feedback or contributions, users can reach out via email, leave reviews, or visit the GitHub repository to participate in development and improvements.

## Rankings

- #9,982 — Overall
- #3 — calculator
- #8 — calculus
- #137 — remember
- #210 — contribute

## Permissions and access

### Permissions

- `storage`

## Safety

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

### Analysis details

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> 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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- [Mini Calculator Popup](https://chrome-stats.com/d/mini-calculator-popup)
- [Calculator — Quick Popup](https://chrome-stats.com/d/calculator-quick-popup)

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