Convert Pounds To Ounces

Please enter a value below to convert pounds to ounces:

In order to do a reverse conversion from ounces to pounds clear values in the above fields and input the value in the “Ounces” field or go to ounces to pounds converter page.

Fact about Pound

Basic facts:  A pound is a unit of mass used in the United States customary and imperial systems of measurement. Its symbol is [lb.]. The common pound used today is the international avoirdupois pound. It is defined as precisely 0.45359237 kilograms. One avoirdupois pound is equal to 16 (sixteen) avoirdupois ounces.

History: Prior to the international avoirdupois pound that is widely used today, numerous different definitions of the pound were used throughout history. The pound descended from the Roman libra. The avoirdupois system was commonly used in the 13th century. In 1959, it was updated to its current form. This system was based on a physical standardized pound that used a prototype weight. This prototype weight could be divided into a number that had three even divisors [8, 4, 2] i.e., 16 ounces.

Use: In the United States, the pound as a unit of weight is widely used, often for measuring body weight. Many versions of the pound existed in the past in the UK, and although the United Kingdom largely uses the International System of Units, pounds are still used within specific contexts, such as labeling of packaged foods [by law the metric values must also be displayed]. The United Kingdom also often uses both pounds and stones when defining body weight, where a stone is comprised of 14 (fourteen) pounds.

Facts about Ounce

Basic facts: An ounce is a unit of mass in the US customary and imperial systems of measurement. Its symbol is [oz]. The avoirdupois ounce, which is the common ounce, is defined as precisely 28.349523125 grams and is equal to one-sixteenth of an avoirdupois pound.

History: The term ounce originates from the Roman uncia, which means a [twelfth part] and the use of a standardized copper bar which defined the Roman pound as well as the foot. The copper bar was divided into twelve identical parts, called unciae. This relationship between the Roman pound and foot ultimately contributed to the uncia being the basis of both the modern inch and the common ounce. Throughout history, the ounce has been used as a standard of mass for various applications and with different definitions. Examples include the French ounce (30.59g), Spanish ounce (28.75g), and the Dutch metric ounce (100g) among others. In 1959, the current definition of the ounce, the international avoirdupois ounce was adopted.

Use: In the US customary system of measurement, an ounce is still a standard unit of mass. It is mainly used in the United States for food portions, measuring packaged food products, and postal items, among other things. In some other countries around the world that have roots in British history and culture, the ounce is still used. The United Kingdom no longer officially uses the ounce due to metrication. It is, however, still used in some settings (restaurants) in the United Kingdom.

How many ounces in a pound? 

1 pound is equivalent to 16 ounces. Use 16 as the factor to convert pounds to ounces. Below find some popular pounds to ounces conversion questions:

• How many ounces in 2 pounds?  2 pounds x 16 = 32 number ounces
• How many ounces in 3 pounds?  3 pounds x 16 = 48 number ounces
• How many ounces in 5 pounds?  5 pounds x 16 = 80 number ounces
• How many ounces in 10 pounds? 10 pounds x 16 = 160 number ounces
• How many ounces in 20 pounds? 20 pounds x 16 = 320 number ounces
• How many ounces in 50 pounds? 50 pounds x 16 = 800 number ounces
• How many ounces in 100 pounds? 100 pounds x 16 = 1600 number ounces
• How many ounces in 1000 pounds? 1000 pounds x 16 = 16000 number ounces

Pounds to Ounces Conversion Chart

Pounds	Ounces	Pounds	Ounces	Pounds	Ounces	Pounds	Ounces
1	16	26	416	51	816	76	1216
2	32	27	432	52	832	77	1232
3	48	28	448	53	848	78	1248
4	64	29	464	54	864	79	1264
5	80	30	480	55	880	80	1280
6	96	31	496	56	896	81	1296
7	112	32	512	57	912	82	1312
8	128	33	528	58	928	83	1328
9	144	34	544	59	944	84	1344
10	160	35	560	60	960	85	1360
11	176	36	576	61	976	86	1376
12	192	37	592	62	992	87	1392
13	208	38	608	63	1008	88	1408
14	224	39	624	64	1024	89	1424
15	240	40	640	65	1040	90	1440
16	256	41	656	66	1056	91	1456
17	272	42	672	67	1072	92	1472
18	288	43	688	68	1088	93	1488
19	304	44	704	69	1104	94	1504
20	320	45	720	70	1120	95	1520
21	336	46	736	71	1136	96	1536
22	352	47	752	72	1152	97	1552
23	368	48	768	73	1168	98	1568
24	384	49	784	74	1184	99	1584
25	400	50	800	75	1200	100	1600

Convert pounds to other volume units

• Convert Pounds To Grams