All-in-One Calculator

by Aiden Tsang · catlkimg.com · Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 21 Oct 2026

Standard, scientific, currency and unit conversion — all in one popup.

Users

+2 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#186K

#156K among extensions

Version

1.2.0

updated 5 Sep 2026

Users

monthly, 2 months

Latest, 21 Oct 2026: 12 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 months

Latest, 21 Oct 2026: 1 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 All-in-One Calculator

• One calculator for everything, opened in a single popup with Alt+C. • BASIC & SCIENTIFIC • Standard arithmetic with full keyboard support • Trigonometry, logarithms, powers, roots, factorial, modulo • DEG / RAD / GRA angle modes and memory keys (M+, M-, MR, MC) • LIVE CURRENCY CONVERSION • 31 major currencies with automatically updated exchange rates • Offline fallback using cached rates • Customizable default pair and one-tap shortcuts • UNIT CONVERSION • 11 categories: length, weight, temperature, area, volume, speed, data, time, pressure, power, energy • Instant bidirectional conversion • Save your favorite conversions as shortcuts, add or remove freely • HISTORY & MORE • History for calculations and conversions, copy results with one click • Light and dark themes, auto follow system • No account, no ads, no tracking. All data stays in your browser.