Ounces to Pounds And Ounces Converter
How many pounds and ounces in 20 ounces?
Convert ounces to pounds and ounces instantly. Carry math (oz ÷ 16 = pounds, remainder = ounces), quick reference table and formula. Free calculator.
How to convert 20 ounces to pounds and ounces step-by-step
One pound equals 16 ounces exactly. To split a value given in ounces into pounds and ounces, divide the total ounces by 16: the whole-number part is the pounds, and the remainder is the leftover ounces. This factor is exact, so there is no approximation involved.
Step 1: Divide the ounces by 16 to get whole pounds
20 ounces ÷ 16 = 1.25 pounds.
Take the whole-number part: the result has 1 whole pound.
Step 2: Take the remaining ounces
Subtract the whole pounds expressed in ounces (1 × 16 = 16 oz) from the original value:
20 − 16 = 4 ounces left over.
In short: 20 oz = 1 lb 4 oz (*)
(*) A fractional input may be rounded to the nearest 1/16 of an ounce.
Other units also called ounce
One avoirdupois ounce is equal to approximately 28.3 g (grams). The avoirdupois ounce is used in US and British systems. Our converter uses this unit. There other units also called ounce:
- The troy ounce of about 31.1 g (grams) which is is used only for measuring the mass of precious metals like gold, silver, platinum and palladium.
- The fluid ounce (fl oz, fl. oz. or oz. fl). It is not a unit of mass but volume. It is equivalent to about 30 ml.
Convert a weight in ounces (oz) into pounds and ounces (lb + oz) instantly. Use the calculator, see the ounces reference chart, or jump to the full conversion table.
When to Use Pounds and Ounces
The pounds + ounces format (lb oz) is used daily in the United States and United Kingdom for:
- Baby weight: Birth weight is recorded in lb oz in US and UK hospitals (e.g., 7 lb 11 oz)
- Cooking and recipes: US recipes use ounces for ingredient measurements (e.g., 8 oz flour)
- Postal and shipping: Package weight in lb oz for USPS, Royal Mail, and carriers
- Food packaging: Nutritional labels in the US list weight in ounces
Unlike stones and pounds (used mainly for body weight in the UK), pounds and ounces is the universal imperial format for precise small weights.
Conversion Method
Conversion Factor
- 1 pound = 16 ounces exact (avoirdupois)
Formulas
whole pounds = floor(ounces ÷ 16)
leftover ounces = ounces − (whole pounds × 16)
Worked example
For 20 oz: floor(20 ÷ 16) = 1 pound, and 20 − (1 × 16) = 4 ounces, so 20 oz = 1 lb 4 oz.
Standards and Definitions
- 1 pound (lb) = 0.45359237 kilograms exact (international avoirdupois pound).
- 1 ounce (oz) = 1/16 pound = 28.349523125 grams exact (avoirdupois ounce).
- This converter uses avoirdupois ounces, the standard for everyday use. It does not use troy ounces (used for precious metals).
Reference sources
Examples
20 oz to pounds and ounces
20 oz = 1 lb 4 oz
Steps: floor(20 ÷ 16) = 1 pound, 20 − 16 = 4 ounces → 1 lb 4 oz.
35 oz to pounds and ounces
35 oz = 2 lb 3 oz
Steps: floor(35 ÷ 16) = 2 pounds, 35 − 32 = 3 ounces → 2 lb 3 oz.
100 oz to pounds and ounces
100 oz = 6 lb 4 oz
Steps: floor(100 ÷ 16) = 6 pounds, 100 − 96 = 4 ounces → 6 lb 4 oz.
Tip: Use the calculator above for any value, including fractional ounces.
Ounces to Pounds and Ounces Reference Chart
Common ounce values split into pounds and ounces. Useful for postal/shipping weights, recipes, and baby weights quoted in ounces.
| Ounces | Pounds + Ounces |
|---|---|
| 8 oz | 0 lb 8 oz |
| 12 oz | 0 lb 12 oz |
| 16 oz | 1 lb 0 oz |
| 20 oz | 1 lb 4 oz |
| 24 oz | 1 lb 8 oz |
| 28 oz | 1 lb 12 oz |
| 32 oz | 2 lb 0 oz |
| 36 oz | 2 lb 4 oz |
| 40 oz | 2 lb 8 oz |
| 48 oz | 3 lb 0 oz |
| 56 oz | 3 lb 8 oz |
| 64 oz | 4 lb 0 oz |
| 72 oz | 4 lb 8 oz |
| 80 oz | 5 lb 0 oz |
| 96 oz | 6 lb 0 oz |
| 100 oz | 6 lb 4 oz |
| 112 oz | 7 lb 0 oz |
| 128 oz | 8 lb 0 oz |
| 160 oz | 10 lb 0 oz |
| 200 oz | 12 lb 8 oz |
Ounces in Cooking and Shipping
US recipes and postal rates frequently use ounces. Splitting a larger ounce amount into pounds and ounces makes it easier to read:
| Ounces | Lb + Oz | Common use |
|---|---|---|
| 8 oz | 0 lb 8 oz | ½ lb — 1 cup butter / standard block |
| 16 oz | 1 lb 0 oz | 1 lb — large can |
| 24 oz | 1 lb 8 oz | 1½ lb package |
| 32 oz | 2 lb 0 oz | 2 lb — large bag |
| 48 oz | 3 lb 0 oz | 3 lb |
| 64 oz | 4 lb 0 oz | 4 lb |
| 112 oz | 7 lb 0 oz | 7 lb — close to an average newborn |
For ingredient conversions by volume (cups, tablespoons), see our cooking weight-to-volume converter.
Popular Conversions
Quick links based on common searches:
Common ounce conversions
- 8 oz in pounds and ounces = 0 lb 8 oz
- 12 oz in pounds and ounces = 0 lb 12 oz
- 16 oz in pounds and ounces = 1 lb 0 oz
- 20 oz in pounds and ounces = 1 lb 4 oz
- 24 oz in pounds and ounces = 1 lb 8 oz
- 28 oz in pounds and ounces = 1 lb 12 oz
- 32 oz in pounds and ounces = 2 lb 0 oz
- 40 oz in pounds and ounces = 2 lb 8 oz
- 48 oz in pounds and ounces = 3 lb 0 oz
- 56 oz in pounds and ounces = 3 lb 8 oz
- 64 oz in pounds and ounces = 4 lb 0 oz
- 80 oz in pounds and ounces = 5 lb 0 oz
Larger ounce amounts
- 96 oz in pounds and ounces = 6 lb 0 oz
- 100 oz in pounds and ounces = 6 lb 4 oz
- 112 oz in pounds and ounces = 7 lb 0 oz
- 128 oz in pounds and ounces = 8 lb 0 oz
- 160 oz in pounds and ounces = 10 lb 0 oz
- 200 oz in pounds and ounces = 12 lb 8 oz
- 256 oz in pounds and ounces = 16 lb 0 oz
- 320 oz in pounds and ounces = 20 lb 0 oz
Frequently Asked Questions
How do I convert ounces to pounds and ounces?
Divide the total ounces by 16 to get whole pounds; the remainder is the leftover ounces. 1 pound equals exactly 16 ounces. Example: 20 oz ÷ 16 = 1 pound, remainder 4 oz, so 20 oz = 1 lb 4 oz.
How many ounces are in a pound?
One pound equals exactly 16 ounces (avoirdupois). This is the standard used in the US and UK for everyday weight measurements, cooking, and postal weights.
What is 20 oz in pounds and ounces?
20 ounces equals 1 pound 4 ounces (1 lb 4 oz), because 20 ÷ 16 = 1 with a remainder of 4.
What is 35 oz in pounds and ounces?
35 ounces equals 2 pounds 3 ounces (2 lb 3 oz): 35 ÷ 16 = 2 with a remainder of 3.
How do I convert pounds and ounces back to ounces?
Multiply the pounds by 16 and add the ounces. Example: 2 lb 3 oz = (2 × 16) + 3 = 35 oz. Or use our Pounds and Ounces converters.
What is the difference between avoirdupois ounces and troy ounces?
Avoirdupois ounce (28.35 g) is used for everyday items, food, and body weight, and 16 of them make one pound. Troy ounce (31.1 g) is only used for precious metals like gold and silver. This converter uses avoirdupois ounces.
Why convert ounces into pounds and ounces?
Postal and shipping rates, recipes, and baby weights are often quoted in pounds and ounces rather than a single large ounce figure. Splitting ounces into "lb + oz" makes the value easier to read and compare.
Is the conversion exact?
Yes. The factor 1 lb = 16 oz is exact by definition, so converting ounces to pounds and ounces involves no rounding of the whole part — only a fractional input ounce may be rounded to the nearest 1/16.
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- Kilogram to Pound — simple kg to lb (no ounces breakdown)
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Ounces to pounds and ounces conversion chart (1 to 100 oz)
Sample Ounces to Pounds and Ounces Conversions
Quick access to frequently searched conversions:
All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.
