Installation
Learn how to install the public release from the Chrome Web Store and how to test an unpacked build during development.
Read installation guide →
Official browser extensions
Practical office tools, one click away.
Use focused browser extensions from OfficeCalculator.net without interrupting your work. The first release brings a fast, private calculator directly to the Chrome toolbar.
No account · No requested Chrome permissions · No analytics
Version 6.0 ready
PrivateNo calculation data is transmitted.
FastOpens directly from the Chrome toolbar.
OfflineCore calculations work without internet.
FocusedOne clear purpose: practical calculations.
Available extension
Office Calculator for Chrome
Standard arithmetic and useful business percentage tools in a clean popup designed for office workers, business owners, freelancers, teachers, and students.
Version 6.0
Calculate without changing tabs
- Standard calculator with percentages, square root, memory, sign change, and repeated calculations.
- Business tools for discounts, tax, percentage change, markup, and target profit margin.
- Calculation history, result copying, full keyboard support, and light, dark, or system themes.
- No account, advertisements, analytics, remote executable code, or requested browser permissions.
Extension resources
Everything users and reviewers need
Clear product information, installation guidance, support, release notes, and a dedicated extension privacy policy.
Support and FAQ
Keyboard shortcuts, history controls, business formulas, troubleshooting, and ways to report a problem.
Get support →Privacy policy
A plain-language explanation of local processing, local storage, external links, permissions, and data handling.
Review privacy policy →Need a full-page calculator?
Open OfficeCalculator.net for a larger workspace and additional dedicated calculators.