SwapUnits - Instant Unit Converter

by swapunits@gmail.com · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 18 Oct 2026

Convert units by selecting text. 7+ categories, 42 currencies, dark mode. Auto-converts with smart defaults.

Users

+1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#273K

#227K among extensions

Version

1.0.0

updated 9 Dec 2025

Users

monthly, 10 months

Latest, 18 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months

Latest, 18 Oct 2026: 0 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 SwapUnits - Instant Unit Converter

How to use: Select any text with a unit (e.g., "30 USD", "5 kg", "10 km") A popup will appear with auto-converted results Use the settings icon to change target units Copy to clipboard Enjoy instant conversions on any webpage! Supported units: - Length: meters, feet, miles, inches, kilometres… - Mass: grams, kilograms, pounds, ounces… - Volume: litres, millilitres, gallons, cups… - Temperature: °C, °F, K Time, speed, area, energy, pressure and more - Currencies with live FX rates (e.g. EUR ↔ USD, GBP ↔ PLN, etc.) SwapUnits is designed for both engineers and everyday users – from quick household conversions to more advanced technical unit changes.