Weight Converter
Fast, accurate weight conversions, right in your browser.
The Weight Converter converts weight between common units — kilograms, pounds, ounces, tons — instantly and accurately. Enter a value in one unit and see it converted to all supported units at once.
Whether you're working on an engineering calculation, a recipe, a science assignment or converting specs from an international source, this tool eliminates manual conversion-factor lookups and rounding errors.
How to Convert weight
- Enter your value and select the starting unit
- Choose the unit you want to convert to
- The converted result appears instantly
Best Practices
- Double-check which unit variant is expected (e.g. US vs. metric) for your specific use case
- For engineering or scientific work, verify precision requirements against the tool's decimal output
- Bookmark this tool for quick repeated conversions
This tool is free to use with no signup required.
Frequently Asked Questions
What units does this weight converter support?
Common units include grams, kilograms, pounds, ounces, stone, and metric/US tons.
How many pounds are in a kilogram?
One kilogram equals approximately 2.205 pounds.
What is a stone, and how many pounds is it?
A stone is a British imperial unit equal to 14 pounds, still commonly used for body weight in the UK and Ireland.
Is weight the same as mass?
In everyday and scientific usage, mass (measured in kg or lb) is often used interchangeably with weight, though technically weight is the force of gravity on a mass — this converter handles the common mass-unit conversions people mean by "weight."
What's the difference between a US ton and a metric ton?
A US (short) ton is 2,000 pounds, while a metric ton (tonne) is 1,000 kilograms (about 2,204.6 pounds) — they are not the same value.
Is this tool free to use?
Yes, completely free with no signup, no limits and no software to install.
Is my data saved anywhere?
No — conversions run in your browser and the values you enter are not stored or sent to a server.
Is this useful for cooking or recipe conversions?
Yes — converting grams to ounces or pounds is a common need when following recipes from a different country's measurement system.
How many ounces are in a pound?
There are 16 ounces in one pound.
Can I convert body weight between kilograms and pounds?
Yes, this is one of the most common uses — simply enter your weight in either unit to see the equivalent.
