How this calculator works
One avoirdupois pound is exactly 16 avoirdupois ounces by definition, so converting pounds to ounces is an exact multiplication by 16 using the exact defining factor. The troy system used for precious metals divides its pound differently and is not used here.
Formula
ounces = pounds × 16 (avoirdupois).
Worked example
2.5 lb to ounces: 2.5 × 16 = 40 oz.
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Frequently asked questions
Is this the same 16 for gold or silver?
No. Precious metals use troy ounces of exactly 31.1034768 g. This page converts avoirdupois ounces of exactly 28.349523125 g.
How do I convert a mixed amount like 3 lb 8 oz?
Convert the 3 lb to 48 oz with this page, then add the 8 oz for a total of 56 oz.
Can I enter a decimal pound value?
Yes. Half a pound gives 8 oz, and 2.5 lb gives 40 oz.