How many ounces are in 1 pound?

1 lb equals 16 oz. This is an exact conversion factor defined by NIST.

How do I convert pounds to ounces?

Multiply the value in lb by the conversion factor. For example, 10 lb = 160 oz. Use our calculator above for instant results.

Is the pounds to ounces conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert pounds to ounces offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between pounds and ounces?

Pounds (lb) and Ounces (oz) are both units of mass but belong to different measurement systems. 1 lb = 16 oz. Use the converter above to switch between them instantly.

Pounds to Ounces (lb → oz) — Free Online Converter

lb → oz Reference Table

lb	oz
0.001 lb	0.016 oz
0.002 lb	0.032 oz
0.003 lb	0.048 oz
0.004 lb	0.064 oz
0.005 lb	0.08 oz
0.006 lb	0.096 oz
0.007 lb	0.112 oz
0.008 lb	0.128 oz
0.009 lb	0.144 oz
0.01 lb	0.16 oz
0.02 lb	0.32 oz
0.03 lb	0.48 oz
0.04 lb	0.64 oz
0.05 lb	0.8 oz
0.06 lb	0.96 oz
0.07 lb	1.12 oz
0.08 lb	1.28 oz
0.09 lb	1.44 oz
0.1 lb	1.6 oz
0.2 lb	3.2 oz
0.3 lb	4.8 oz
0.4 lb	6.4 oz
0.5 lb	8 oz
0.6 lb	9.6 oz
0.7 lb	11.2 oz
0.8 lb	12.8 oz
0.9 lb	14.4 oz
1 lb	16 oz
1.5 lb	24 oz
2 lb	32 oz
2.5 lb	40 oz
3 lb	48 oz
3.5 lb	56 oz
4 lb	64 oz
4.5 lb	72 oz
5 lb	80 oz
5.5 lb	88 oz
6 lb	96 oz
6.5 lb	104 oz
7 lb	112 oz
7.5 lb	120 oz
8 lb	128 oz
8.5 lb	136 oz
9 lb	144 oz
9.5 lb	152 oz
10 lb	160 oz
11 lb	176 oz
12 lb	192 oz
13 lb	208 oz
14 lb	224 oz
15 lb	240 oz
16 lb	256 oz
17 lb	272 oz
18 lb	288 oz
19 lb	304 oz
20 lb	320 oz
25 lb	400 oz
30 lb	480 oz
35 lb	560 oz
40 lb	640 oz
45 lb	720 oz
50 lb	800 oz
55 lb	880 oz
60 lb	960 oz
65 lb	1040 oz
70 lb	1120 oz
75 lb	1200 oz
80 lb	1280 oz
85 lb	1360 oz
90 lb	1440 oz
95 lb	1520 oz
100 lb	1600 oz
120 lb	1920 oz
125 lb	2000 oz
130 lb	2080 oz
140 lb	2240 oz
150 lb	2400 oz
160 lb	2560 oz
175 lb	2800 oz
180 lb	2880 oz
200 lb	3200 oz
225 lb	3600 oz
250 lb	4000 oz
275 lb	4400 oz
300 lb	4800 oz
350 lb	5600 oz
400 lb	6400 oz
450 lb	7200 oz
500 lb	8000 oz
600 lb	9600 oz
700 lb	11200 oz
750 lb	12000 oz
800 lb	12800 oz
900 lb	14400 oz
1000 lb	16000 oz
1200 lb	19200 oz
1250 lb	20000 oz
1500 lb	24000 oz
1750 lb	28000 oz
2000 lb	32000 oz
2500 lb	40000 oz
3000 lb	48000 oz
4000 lb	64000 oz
4500 lb	72000 oz
5000 lb	80000 oz
6000 lb	96000 oz
7000 lb	112000 oz
7500 lb	120000 oz
8000 lb	128000 oz
9000 lb	144000 oz
10000 lb	160000 oz
15000 lb	240000 oz
20000 lb	320000 oz
25000 lb	400000 oz
50000 lb	800000 oz
75000 lb	1200000 oz
100000 lb	1600000 oz

Values based on NIST SP 811 conversion factors

Why Convert Pounds to Ounces?

Converting between pounds (lb) and ounces (oz) is one of the most common mass conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert lb to oz saves time and prevents errors.

Mass conversions from lb to oz are vital in culinary arts, logistics, and pharmaceutical industries. Professional chefs and home bakers rely on precise ingredient conversions to replicate international recipes — a slight variation in flour or leavening agents can ruin the texture of a dish. In global shipping, freight costs and vehicle load limits depend on accurate weight calculations to ensure safety and compliance with transport regulations. Furthermore, in healthcare and chemistry, dosage calculations must be exact; confusing mass units can lead to ineffective treatments or dangerous overdoses. Reliable mass conversion ensures consistency across borders and disciplines.

How to Convert Pounds to Ounces

To convert pounds to ounces, use the following formula:

oz = lb × 16

Example: 1 lb = 16 oz

For example, 5 lb = 80 oz, 10 lb = 160 oz, and 100 lb = 1600 oz. For larger values, 1000 lb = 16000 oz. Conversely, 1 oz = 0.0625 lb. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

One pound of coffee beans: 1 lb = 16 oz
Half pound burger patty: 0.5 lb = 8 oz
Two pounds of ground meat: 2 lb = 32 oz
5-pound bag of potatoes: 5 lb = 80 oz

Common Mistakes to Avoid

Mass vs Weight: confusing mass (kg) with weight/force (Newtons or lbs-force).
Ton variations: mixing up Short Ton (US), Long Ton (UK), and Metric Tonne.
Ounce confusion: confusing Ounces (weight) with Fluid Ounces (volume).

Pro Tips

Kitchen scales: Use the 'Tare' button to zero out container weight.
Water weight: 1 Liter of water weighs exactly 1 kg (at 4°C). Useful benchmark.
Conversion rule: To get kg from lbs, divide by 2.2 (approx halve it).

What is a Pound?

The pound (lb) is a unit of mass in the Imperial and US customary systems. The international avoirdupois pound is legally defined as exactly 0.45359237 kilograms since 1959.

Pounds are the primary unit of weight in the United States and are widely used in the UK for body weight. Common uses include groceries, body mass, and engineering in the US.

What is a Ounce?

The ounce (oz) is a unit of mass in the Imperial and US customary systems. One avoirdupois ounce is equal to roughly 28.35 grams (1/16 of a pound).

Ounces are commonly used in the US for food packaging, postal weights, and precious metals (though precious metals use troy ounces, which are heavier).

Pounds → Ounces

Pounds to Ounces Formula