How many grams is 1 lb?

1 pound is 454 grams, or 16 ounces.

How much does a stick of butter weigh?

A US stick of butter is 4 oz, or about 113 grams.

Is an ounce the same as a fluid ounce?

No. An ounce is a weight, a fluid ounce is a volume. They only match for water.

Weight conversions: grams, ounces, pounds and kilograms

Weight conversions between grams, kilograms, ounces and pounds are fixed ratios, so these are the most reliable numbers on the site — nothing depends on the ingredient or on how you packed the measuring cup.

Worth watching: recipes sometimes mean fluid ounces when they write "oz", which is a volume, not a weight. If an American recipe asks for ounces of a liquid, it almost certainly means fluid ounces.

A few anchors worth memorising, because they turn up constantly: one pound is 453.6 g, one ounce is 28.35 g, and one kilogram is about 2.2 lb. A US stick of butter is 4 oz, or 113 g — which is why American baking recipes so often call for half a stick rather than a weight. Once you know those four numbers, most weight conversions in a recipe can be done in your head to within a few grams.

Convert any amount

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Grams to ounces and pounds

g	oz	lb
10	0.35	0.02
25	0.88	0.06
50	1.76	0.11
100	3.53	0.22
125	4.41	0.28
200	7.05	0.44
250	8.82	0.55
500	17.6	1.1
750	26.5	1.65
1000	35.3	2.2

Ounces to grams

oz	g	lb
0.5	14.2	0.03
1	28.3	0.06
2	56.7	0.12
3	85	0.19
4	113	0.25
6	170	0.37
8	227	0.5
12	340	0.75
16	454	1
32	907	2

Pounds to grams and kilograms

lb	g	kg	oz
0.25	113	0.11	4
0.5	227	0.23	8
0.75	340	0.34	12
1	454	0.45	16
1.5	680	0.68	24
2	907	0.91	32
3	1361	1.36	48
5	2268	2.27	80
10	4536	4.54	160

Ounces or fluid ounces?

If a recipe asks for ounces of a liquid, it almost certainly means fluid ounces, which is a volume and belongs on the volume page. Ounces of flour, sugar or butter are weights, and the tables above apply.

Numbers worth memorising

One pound is 453.6 g, one ounce is 28.35 g, and one kilogram is about 2.2 lb. A US stick of butter is 4 oz or 113 g, which is why American recipes so often call for half a stick instead of a weight. With those four figures most conversions can be done in your head to within a few grams.

Why weight beats volume

Weight is the one measurement that does not care how you scooped, how compacted the bag was, or how humid the kitchen is. A gram of flour is a gram of flour. For anything where ratios matter — bread, pastry, cake — a digital scale removes an entire category of error.

Handy tools for this

Digital kitchen scale The most accurate way to bake — skip the cup guesswork and weigh straight into the bowl to the nearest gram. Check price →

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Frequently asked questions

How many grams is 1 oz?: 1 ounce is 28.3 grams.
How many grams is 1 lb?: 1 pound is 454 grams, or 16 ounces.
How many oz is 100 g?: 100 grams is 3.53 ounces.
How many pounds is 1 kg?: 1 kilogram is 2.2 pounds.
How much does a stick of butter weigh?: A US stick of butter is 4 oz, or about 113 grams.
Is an ounce the same as a fluid ounce?: No. An ounce is a weight, a fluid ounce is a volume. They only match for water.