Ounce to Pound Converter (oz to lb)
1 ounce = 0.0625 pound. In the avoirdupois system there are exactly 16 ounces in a pound.
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Result
40 oz = 2.5 lb
How to convert ounce to pound
In the avoirdupois system there are exactly 16 ounces in a pound. The conversion is used for food packaging, postage and baby weight, where weight is written as pounds and ounces.
Formula
lb = oz × 0.0625
Worked example
40 oz × 0.0625 = 2.5 lb
Ounce to Pound quick-reference table
| Ounce (oz) | Pound (lb) |
|---|---|
| 4 oz | 0.25 lb |
| 8 oz | 0.5 lb |
| 16 oz | 1 lb |
| 32 oz | 2 lb |
| 48 oz | 3 lb |
| 64 oz | 4 lb |
Real-life examples
40 oz of ground beef is 2.5 lb, and 100 oz of dog food is 6.25 lb.
Frequently asked questions
How many ounces are in a pound?
There are 16 ounces in 1 pound.
How many pounds is 20 ounces?
20 oz is 1.25 lb, which is 1 lb 4 oz.
What is 1 ounce in pound?
1 ounce = 0.0625 pound (oz to lb).
What is the formula to convert oz to lb?
lb = oz × 0.0625. For example, 40 oz × 0.0625 = 2.5 lb.
How do I convert lb back to oz?
Use the reverse converter: 1 pound = 16 ounce. Check: 2.5 lb converts back to 40 oz.
Reverse conversion
Need the other direction? Pound to Ounce converter (lb to oz): 1 pound = 16 ounce.
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