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Free Progressive Web App

Download the Office Calculator App

Put OfficeCalculator.Net on your home screen or desktop. Open the standard, scientific, and business calculator in a focused app window, keep your calculation tape handy, and return to your frequently used tools.

Open Calculator Online

Available in supported browsers. Follow the installation steps below.

Office Calculator app iconOffice CalculatorFree • Fast • No sign-up
Standard Calculator

Arithmetic, percentages, memory and keyboard input.

Scientific & Business

Functions and useful finance shortcuts on the main calculator.

Calculation Tape

Review results and save work in your browser.

Home Screen Access

Launch without navigating back through browser tabs.

How to install Office Calculator

This is a web app, not an APK or a separate app-store download. Open this page using a compatible browser, then follow the steps for your device. Installation is free.

Android (Chrome)

  1. Open this page in Chrome on your Android phone or tablet.
  2. Tap Install Free App when displayed, or open Chrome’s three-dot menu.
  3. Select Install app or Add to Home screen.
  4. Confirm and find Office Calculator among your apps.

iPhone & iPad (Safari)

  1. Open this page using Safari.
  2. Tap the Share button.
  3. Choose Add to Home Screen.
  4. Confirm Add. Launch Office Calculator from the Home Screen.

Windows & Linux (Chrome or Edge)

  1. Open this page in Chrome or Microsoft Edge.
  2. Look for the install icon in the address bar or open the browser menu.
  3. Choose Install Office Calculator if available.
  4. Confirm and open it from your desktop, Start menu, or app launcher.

Mac (Chrome, Edge, or supported Safari)

  1. Open this page in a supported browser.
  2. Use the install icon/menu in Chrome or Edge, where offered.
  3. In supported Safari versions, choose Add to Dock from the File menu.
  4. Open the saved app from your Dock or Applications.

Browser support varies: If an install button is not displayed, open the site in Chrome, Edge, or Safari as appropriate and follow your browser’s menu. No installation is necessary to use the online calculator.

What works offline?

After you open and prepare the app online, the main calculator’s saved shell and essential files are intended to be available when you lose your connection. This includes everyday arithmetic, keyboard input and some local workspace features. The web app may need an initial online visit after installation.

Other calculators, games, articles and live resources are not guaranteed to be offline. Some visited pages can remain available from the browser cache, while others require a connection. Advertising requires an internet connection.

Your saved sessions and notes use local browser or app storage. Clearing site data can remove them, and storage can differ between an installed app and a regular browser tab depending on the device.

App vs browser extension: which should I use?

The Office Calculator PWA opens the calculator website as a standalone app, making it convenient for phones, tablets and desktop computers. The Office Calculator Chrome extension is a separate toolbar tool that stays available while you browse other websites.

If you want home screen access, use this installation page. If you want a compact calculator inside Chrome, explore the extension. You can also use the online calculator with no installation.

Frequently asked questions about installing Office Calculator

Is Office Calculator free to install?

Yes. The website can be installed as a free progressive web app in compatible browsers. No account is needed for the main calculator.

Is this the Chrome extension or a different app?

It is the Office Calculator website installed as a progressive web app. The Chrome extension is a separate product that runs from your browser toolbar.

Can I use Office Calculator offline?

After opening the app online, the main calculator and its required saved files are designed to work without a connection. Specialized calculators, live content, external services, and pages that have not been saved may still require internet access.

How do I install Office Calculator on Android?

Open this page in Chrome on Android, tap Install if shown, or use the browser menu and choose Install app or Add to Home screen.

Can I install Office Calculator on an iPhone or iPad?

Yes. Open the site in Safari, tap Share, choose Add to Home Screen, and confirm Add. The availability and labels of this option depend on your device and iOS version.

How can I install it on Windows, macOS, or Linux?

Open this page in Chrome or Microsoft Edge, select the install control in the address bar or browser menu when available, and confirm installation.

Does installing the calculator store my calculations online?

The main calculator stores history and workspace data in your current browser or app storage. Installing the PWA does not by itself upload the data to an account.

How do I remove the installed app?

Remove Office Calculator using your device’s normal app-management controls or the browser’s installed-app menu. Clearing app or site storage may erase locally saved calculations.

Get started with a free calculator

After installation you can start with quick arithmetic on the main calculator, explore mathematics calculators, or practise with math learning games. All links also work in a regular browser; the app simply makes return visits easier.

If an install prompt does not appear, the calculator still works online. You do not need an account or payment for the basic calculation tools.

Open Office Calculator