Weight and Mass Converter

Weight and Mass Converter is a free tool that runs entirely in your browser, with no data ever sent to a server. Convert a weight between metric and imperial units.

What it's for

Convert a weight between the metric and imperial systems, for a recipe, a parcel, or any measurement coming from an English-speaking country.

What this tool does not do

This tool only applies the calculation described, with no check on the context of use. No limit is set by the tool itself; the only constraint is your device's memory.

Frequently asked questions

Which pound is used here?

The avoirdupois pound (453.592 g), used in the United States and the United Kingdom. It's the most common definition of the word "pound" in everyday use.

Is my data sent to a server?

No: the values you enter are processed entirely in your browser, on your device. They are never transmitted to a server.

Do I need to create an account or install anything?

No: the tool works directly in this page, with no sign-up and nothing to install.