» Mass and Weight Converter


Convert mass and weight units instantly: kg, g, mg, lb, oz, stone, and tonnes. Free online mass converter with fast results.

Use this mass converter to convert weight and mass units instantly, including kg to lbs, lbs to kg, or g to oz. Perfect for cooking, fitness, shipping, science, and everyday weight conversions.

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Most Common Conversion Factors

kg g lb oz
1 kg 1 1000 2.204623 35.273962
1 g 0.001 1 0.002205 0.035274
1 lb 0.453592 453.592 1 16
1 oz 0.02835 28.349523 0.0625 1

Mass and Weight Converter FAQ

What is a mass and weight converter?
A mass and weight converter converts units such as kg, g, mg, lb, oz, stone, and tonnes. It is useful for cooking, fitness, shipping, science, travel, and everyday weight conversions.

Can I use this as a mass converter?
Yes. This page works as a general mass converter for metric and imperial weight units, including kilograms, pounds, ounces, grams, stone, and tonnes.

How do I convert kg to lbs?
Enter a value, choose kg as the source unit, and choose lbs as the target unit. This is one of the most common conversions for body weight, luggage, shipping, and product weights.

How do I convert lbs to kg?
Enter the value, select lbs as the source unit, and select kg as the target unit. This is useful when converting weights from US or UK measurements into metric units.

What is the difference between kilograms, pounds, ounces, and stone?
kg and g are metric mass units. lb and oz are imperial/US customary units. stone is mainly used for body weight in the UK and Ireland.

Is mass the same as weight?
Not exactly. Mass measures the amount of matter in an object, while weight is the force caused by gravity acting on that mass. In everyday use, people often say weight when they mean mass.

When should I use a mass and weight converter?
Use a mass and weight converter when converting body weight, recipe ingredients, package weight, luggage limits, product specifications, lab measurements, or shipping and freight values.

Can I use this converter for cooking, fitness, and shipping?
Yes. This converter is useful for grams to ounces in recipes, kilograms to pounds for fitness or body weight, and pounds to kilograms for shipping, luggage, freight, and product weights.


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