UnitConvertersGo for Chrome — Fast, Simple Browser Toolbar Unit Calculator
UnitConvertersGo is a fast, simple unit calculator for your browser toolbar. Pick two units, type a number, and see the answer instantly. No sign-up and no internet connection needed.
"5 km to miles" or "72 f in c""10 kg" on a web pageSupported Units (31 Categories)
Instant offline calculations across everyday, kitchen, technology, engineering, and electrical measurement systems.
Everyday
length, weight, temperature, volume, area, speed, time
Technology
data storage, data transfer rate, frequency
Home and kitchen
cups, tablespoons, teaspoons, fluid ounces, gallons (US and UK)
Engineering
pressure, energy, power, force, torque, flow, density, acceleration
Electrical
current, voltage, resistance, capacitance, inductance, charge
Also Included
angle, fuel economy, illumination, dry volume and more
Features
Built for speed and simplicity right inside your browser toolbar.
- Live results as you type
No submit button required—see the converted measurement update keystroke by keystroke.
- Quick search box: type "5 km to miles" or "72 f in c" and get the answer
Jump straight to any calculation using natural shorthand queries.
- Right-click any selected value on a web page (for example "10 kg") to convert it
Highlight a measurement on any article, recipe, or datasheet and convert it via the context menu.
- One-click copy of the result
Copy the exact converted figure to your clipboard with a single click.
- Remembers your last five conversions
Your 5 most recent conversions stay handy in local storage so you can revisit them anytime.
- Light and dark theme, adjustable decimal places
Match your system appearance and choose full precision or fixed decimal rounding.
- Keyboard shortcut: Alt+U
Pop open the calculator from any tab without reaching for the mouse.
Convert Selected Text on Any Page
Click any sample measurement below to preview how the right-click context menu converts highlighted values on the spot:
Checked baggage allowance on international flights is limited to 10 kg per small carry-on item.
How to Use
Convert units in seconds from your browser toolbar or directly on any web page.
1. Click the extension icon (or press Alt+U).
Launch the calculator instantly from your Chrome toolbar or with the Alt+U keyboard shortcut.
2. Choose a category, enter a value, and pick your units.
Type a number or enter a quick search like 5 km to miles to see live results as you type.
3. Or select text on any page, right-click, and choose the UnitConvertersGo option.
Highlight any measurement (such as 10 kg) while browsing to convert it without leaving your tab.
Website Link
Each result has a link to the matching page on unitconvertersgo.com, where you can find more detail—including step-by-step formulas, NIST metrology references, fractional inch charts, and printable lookup tables. Clicking it opens our website in a new tab.
Privacy
The extension works offline. It does not collect, store on a server, or send your personal data. It asks only for the two permissions it needs: the right-click menu and local storage for your settings.