# Calculator

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

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

## Overview

- **ID:** `calculator-basic`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** LinangData
- **Category:** other
- **Daily users:** 2,180
- **Weekly downloads:** 52
- **Rating:** 4.28 / 5 (40 ratings)
- **Version:** 1.7.4resigned1
- **Last updated:** 2024-04-25
- **First published:** 2018-03-19
- **Size:** 496 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/calculator-basic/)
- **Website:** [https://linangdata.com](https://linangdata.com/)

## Description

Calculator is a lightweight and simple Chrome extension providing basic arithmetic functionalities with the added benefit of remembering your last calculation. Designed for ease of use, it supports essential operations and lets you close and reopen the calculator without losing your work.

Key features include full keyboard shortcut support (number pad, enter, clear, delete), offline functionality, copy/paste capabilities, and quick access to functions like percentage, square root, and toggling positive/negative values. Its minimal design ensures quick, hassle-free calculations for everyday math needs, making it an ideal tool for users who want a persistent calculator without complex features.

## Rankings

- #2,058 — Overall
- #322 — Other extensions
- #1 — calculator
- #3 — calculus
- #34 — remember
- #219 — close

## Safety

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

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

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

## Review summary

Users praise the Calculator for its simple, clean UI and practical use, noting fast and precise results. Recurring drawbacks are missing history, lack of parentheses, and limited keyboard input with editing issues (backspace not reliably clearing due to cursor position). Overall, it’s easy to use but lacks essential features for more advanced calculations.

### Pros

- Simple and clean layout
- Easy to use and navigate
- Fast and exact calculations
- Generally positive and practical usability

### Cons

- Missing history feature
- Backspace/editing problems due to cursor position or backspace not working
- Limited keyboard support: cannot type symbols or use keyboard
- No parentheses / lack of grouping and other advanced features

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