Kilograms as the base
Conversions pass through kilograms. The international pound is exactly 0.45359237 kg and the ordinary avoirdupois ounce is exactly one sixteenth of a pound.
Mass and everyday weight
Kilograms and pounds technically describe mass, while weight is a force. Everyday conversion tools commonly use the terms together because the numeric unit scaling is the same here.
Troy and ordinary ounces
Troy ounces are used for precious metals and are not the same size as ordinary avoirdupois ounces. Choose the correct unit before relying on the result.
Frequently asked questions
Does conversion happen in my browser?
Yes. These value conversions run in the browser and do not require an account.
Should I verify a critical conversion?
Yes. For engineering, laboratory, medical, financial, legal, or safety-critical work, verify the unit definition and result against an authoritative standard for your context.