Weight Converter
Type a weight, choose the From unit, and see the same mass in kilograms, grams, pounds, and ounces. Kilograms are the base unit; every target line recalculates as you edit.
Updated 2026-08-03 · units
kg: 1
g: 1000
lb: 2.20462
oz: 35.274
About this tool
This weight converter uses a Value input and a From select with kg, g, lb, and oz. It converts into kilograms first, then multiplies by each unit factor. Invalid numbers show Enter a number instead of unit lines.
How to use
- Open the converter: Load this page so the Value field and From unit list are ready.
- Enter the mass: Type the numeric weight in Value (default sample is 1).
- Choose the source unit: Select kg, g, lb, or oz in From to match your input.
- Read the outputs: Review lines such as kg: …, g: …, lb: …, and oz: …, or correct the value if you see Enter a number.
Common use cases
- Switch a package weight from pounds to kilograms for a shipping label.
- Convert a recipe from ounces or grams before you weigh ingredients.
- Check gym or body-weight notes between kg and lb without a separate app.
Tips
- Set From to the unit of the number you entered; the other lines are converted outputs.
- Pound and ounce factors follow common avoirdupois conversions (about 2.20462 lb per kg).
FAQ
Which units can I convert?
Kilograms (kg), grams (g), pounds (lb), and ounces (oz).
What does Enter a number mean?
The Value is missing or not a finite number, so no conversion is shown.
Is conversion automatic?
Yes. Changing Value or From refreshes all unit lines immediately.
Does this tool send my input to a server?
Math runs locally in the browser; no account is required.