Weight & mass conversions

Convert kilograms, pounds, grams, and ounces with focused tools. Ideal for fitness, luggage, shipping labels, and recipe scaling.

Weight tools

Each converter uses standard factors and shows formulas so you can double-check critical weights.

Other hubs

Length · Volume · Metric · US & imperial

Frequently asked questions

Multiply pounds by 0.453592 to get kilograms. Our lbs to kg tool uses the same factor and rounds for display.
Many regions label food in ounces or pounds while bakers prefer grams. Convert each ingredient with the grams ↔ ounces tools.
Stone is common in the UK and Ireland. Read our stones guide, then convert to kg or lb with the full converter if needed.