Quick Calculator

by Ocelot Engage · Education

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Just double-click a number, and its done.

Users

+2 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#124K

#103K among extensions

Version

1.0.0

updated 25 Jul 2025

Users

monthly, 15 months

Latest, 15 Oct 2026: 34 usersMove the mouse over the chart for any month

Ratings count

monthly, 15 months

Latest, 15 Oct 2026: 4 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Quick Calculator

🧮 Quick Calculator lets you double-click any number on any website to instantly calculate — no typing needed. Add ➕, subtract ➖, multiply ✖️, divide ➗, or find percentages % right on the page. It works on all websites, floats over your screen without getting in the way, and gives instant results with no tracking or internet required. Key features: ⚡ Instant calculations with double-click 🧮 Floating, draggable calculator 🧠 Smart UI feedback with small popups 🌗 Works with light and dark themes 🔒 Offline and privacy-first 🚀 Fast, lightweight, and doesn’t break websites Great for: 📚 Students · 💼 Finance pros · 🛒 Shoppers · 📊 Analysts · 🧰 Productivity lovers No setup. No copy-paste. Just double-click and calculate.