How Many Ounces in a Pound?
There are exactly 16 ounces in one pound.
How to Convert Pounds to Ounces
To convert pounds to ounces, multiply by 16.
For example: 5 pounds × 16 = 80 ounces.
Why This Number Matters
Deli counters, baby weights, shipping rates and recipe quantities all move between pounds and ounces. Postal and freight rates in particular are priced per ounce over a pound threshold.
A newborn at 7 pounds 9 ounces weighs 121 ounces, the figure a hospital scale set to ounces would show.
What People Get Wrong
A troy pound, used for precious metals, has 12 troy ounces, not 16. That makes a troy pound lighter than an everyday pound despite the heavier ounces.
Pounds to Ounces Conversion Table
| Pounds (lb) | Ounces (oz) |
|---|---|
| 1 | 16 |
| 2 | 32 |
| 3 | 48 |
| 4 | 64 |
| 5 | 80 |
| 6 | 96 |
| 7 | 112 |
| 8 | 128 |
| 9 | 144 |
| 10 | 160 |
| 11 | 176 |
| 12 | 192 |
| 13 | 208 |
| 14 | 224 |
| 15 | 240 |
| 16 | 256 |
| 17 | 272 |
| 18 | 288 |
| 19 | 304 |
| 20 | 320 |
| 25 | 400 |
| 30 | 480 |
| 40 | 640 |
| 50 | 800 |
| 75 | 1,200 |
| 100 | 1,600 |
| 250 | 4,000 |
| 500 | 8,000 |
| 1,000 | 16,000 |
About These Units
The pound
The pound is exactly 0.45359237 kilograms and contains 16 ounces. It is the standard American unit for body weight, groceries and shipping.
The ounce
An avoirdupois ounce is one sixteenth of a pound, or exactly 28.349523125 grams. Do not confuse it with the fluid ounce, which measures volume, not weight.
Definitions follow NIST Special Publication 811, Appendix B. See how we calculate for the exact values and rounding rules.
Frequently Asked Questions
How many ounces in half a pound?
Half a pound is 8 ounces.
How do I convert pounds and ounces to ounces?
Multiply the pounds by 16 and add the ounces. 3 pounds 4 ounces is 48 plus 4, or 52 ounces.
Is a fluid ounce the same thing?
No. A fluid ounce measures volume, and there are 16 fluid ounces in a US pint, not in a pound. The two units share a name and nothing else.
How many grams in an ounce?
One ounce is 28.349523125 grams.