Pounds to Ounces Converter
1 avoirdupois pound = 16 avoirdupois ounces.
Conversion result
Ounces = avoirdupois pounds × 16; pounds = ounces ÷ 16.
Primary source: NIST SP 811, Appendix B.8 conversion factors. Published SI table values may be rounded; this converter uses the exact underlying definitions. NIST Handbook 44, Appendix C supplies the underlying inch, pound and US liquid measure definitions. NIST SP 1038, footnote 19 defines the US cup, tablespoon and teaspoon in fluid ounces.
Worked example: 1½ pounds × 16 = 24 mass ounces.
Common conversion values
The table follows the selected direction. Results display up to 12 significant digits; exact definitions are used before display rounding.
| avoirdupois pounds (mass) | avoirdupois ounces (mass) |
|---|---|
| 0.25 | 4.00 |
| 0.5 | 8.0 |
| 1 | 16 |
| 2 | 32 |
| 5 | 80 |
The international avoirdupois pound contains 16 avoirdupois ounces and is exactly 453.59237 grams. This conversion is between masses; a troy pound has 12 troy ounces and is outside this converter.
These are mass conversions using the international avoirdupois system. Fluid ounces describe volume and require a different conversion. Troy weight is outside this page’s accepted units.
How to use this tool
Enter a quantity in avoirdupois pounds (mass), choose the forward or reverse direction, and select Convert. Decimals, fractions such as 1/2, and mixed fractions such as 1 1/2 are supported.
Frequently asked questions
Does a pound always mean 16 ounces?
An avoirdupois pound is 16 avoirdupois ounces. Troy weight uses different units. This page uses avoirdupois only.
Can I reverse the conversion or enter a fraction?
Yes. Choose the reverse direction on this same page. Enter a nonnegative decimal, fraction such as 3/4, or mixed fraction such as 1 1/2. Zero is accepted; the quantity and fraction components are limited to 10¹², and a denominator must be positive.
Is this converter free and private?
Yes. Conversions run on your device without uploading your entries or saving them to browser storage. There is no sign-up.