Butter Unit Converter

How to use this calculator

Three inputs. The result shows 4 equivalents simultaneously.

Amount is the quantity you’re starting with. Type it in. Decimals work, so 0.5 sticks or 113.4 grams are both valid entries.

From unit is your source unit. Options: stick (US), cup, tablespoon (tbsp), gram (g), ounce (oz), and pound (lb).

To unit is your target. Same list.

Click Convert and the blue results panel shows the converted value plus the 4 most useful equivalents all at once: grams, sticks (US), tablespoons, and cups. So if you convert 1 stick, you immediately see 113.4g, 8 tbsp, and 0.5 cups without running separate conversions.

The Butter Stick Diagram below the results is a visual ruler of a US stick divided into 8 tablespoon sections. It shows exactly how much of a stick your conversion represents. Converting 4 tablespoons? The diagram highlights the left half. 2 tablespoons? The first quarter. It’s a fast visual answer to “how much of the stick do I cut?”

The US stick: what it actually is

The US butter stick exists purely for portioning convenience. A standard American pound of butter is divided into 4 equal sticks. Each stick weighs 4 oz (113.4g), holds 8 tablespoons, and takes up half a cup.

The wrapper matters. US butter sticks are wrapped in paper with tablespoon markings printed directly on it, from 1 tbsp to 8 tbsp. Recipes that call for “3 tablespoons of butter” expect you to unwrap a stick, find the 3-tablespoon mark, and cut there. The diagram in this calculator replicates that wrapper logic on screen.

Outside the US, butter sticks don’t exist in the same standardised form. In the UK, Ireland, and Australia, butter comes in 250g blocks. In France, 250g or 500g. In most of Europe, 250g is the standard block. None of these are divided into tablespoon-marked sections. International recipes assume a scale.

The US butter stick is one of those measurements so embedded in American baking culture that recipes rarely explain it. But to anyone outside North America, it's a completely opaque unit.

The formulas

All conversions go through grams as the base unit.

The calculator converts any input to grams first, then divides by the target unit’s gram equivalent. Every output is exact to 4 significant figures.

The tablespoon-to-stick relationship is worth memorising:

Full butter conversion table: sticks to everything

Sticks (US)	Cups	Tablespoons	Grams	Ounces	Pounds
0.125	0.0625	1	14.2	0.5	0.031
0.25	0.125	2	28.4	1.0	0.063
0.5	0.25	4	56.7	2.0	0.125
0.75	0.375	6	85.0	3.0	0.188
1	0.5	8	113.4	4.0	0.25
1.5	0.75	12	170.1	6.0	0.375
2	1.0	16	226.8	8.0	0.5
2.5	1.25	20	283.5	10.0	0.625
3	1.5	24	340.2	12.0	0.75
4	2.0	32	453.6	16.0	1.0

Grams to cups, tablespoons and sticks

The table every international baker needs when reading US recipes.

Grams	Sticks (US)	Cups	Tablespoons	Ounces
15	0.132	0.066	1.06	0.53
25	0.220	0.110	1.76	0.88
30	0.264	0.132	2.12	1.06
50	0.441	0.220	3.53	1.76
60	0.529	0.265	4.23	2.12
75	0.661	0.331	5.29	2.65
100	0.882	0.441	7.05	3.53
113.4	1.0	0.5	8.0	4.0
125	1.102	0.551	8.82	4.41
150	1.323	0.661	10.58	5.29
175	1.543	0.771	12.35	6.17
200	1.764	0.882	14.11	7.05
225	1.984	0.992	15.87	7.94
226.8	2.0	1.0	16.0	8.0
250	2.205	1.102	17.64	8.82
300	2.646	1.323	21.16	10.58
400	3.527	1.764	28.22	14.11
453.6	4.0	2.0	32.0	16.0
500	4.409	2.205	35.27	17.64

Tablespoons to grams: the fractional butter table

Recipes frequently call for tablespoons of butter, especially for sauces, frostings, and finishing touches. This table covers the range from 1 to 32 tablespoons.

Tablespoons	Grams	Ounces	Sticks (US)	Cups
1	14.2	0.5	0.125	0.0625
2	28.4	1.0	0.25	0.125
3	42.5	1.5	0.375	0.1875
4	56.7	2.0	0.5	0.25
5	70.9	2.5	0.625	0.3125
6	85.1	3.0	0.75	0.375
7	99.2	3.5	0.875	0.4375
8	113.4	4.0	1.0	0.5
10	141.7	5.0	1.25	0.625
12	170.1	6.0	1.5	0.75
16	226.8	8.0	2.0	1.0
24	340.2	12.0	3.0	1.5
32	453.6	16.0	4.0	2.0

Common recipe amounts decoded

A quick lookup for the butter amounts that appear most often in baking recipes.

Recipe says	Grams	Sticks (US)	Tablespoons	Notes
1/4 cup	56.7	0.5	4	Half a stick
1/3 cup	75.6	0.667	5.33	Cut 5 tbsp + a little
1/2 cup	113.4	1	8	Exactly 1 stick
2/3 cup	151.2	1.333	10.67	1 stick + 2.67 tbsp
3/4 cup	170.1	1.5	12	1 stick + 4 tbsp
1 cup	226.8	2	16	Exactly 2 sticks
1.5 cups	340.2	3	24	3 sticks
2 cups	453.6	4	32	Full 1 lb package
125g	113.4 + 11.6 extra	~1.1	8.82	Just over 1 stick
250g	~2.2 sticks	2.205	17.6	1 US package is 226.8g, not 250g
500g	~4.4 sticks	4.409	35.3	European 500g block

Real-world examples

Scaling a cookie recipe

A chocolate chip cookie recipe makes 24 cookies and calls for 1 cup of butter. You want to make 36 cookies (1.5× batch).

Converting a French recipe

A French butter cake recipe calls for 200g of butter. You only have US butter sticks.

Substituting oil for butter

A recipe calls for 1/2 cup of butter. You want to substitute vegetable oil. The standard substitution ratio is 3/4 the amount of oil to butter.

Working from ounces

An older UK recipe (pre-metric, printed in the 1960s) calls for 4 oz of butter.

Common mistakes people make

Confusing salted and unsalted butter by weight. Salted and unsalted butter weigh the same. Salt adds negligible mass. The distinction only matters for flavour and for baking chemistry (salt affects gluten development and yeast in bread). Conversions are identical regardless of salt content.

Measuring butter by volume when you should weigh it. A cup of butter pressed firmly into a measuring cup gives a different result than a cup loosely packed. Butter’s semi-solid state makes volumetric measurement less reliable than weight. Whenever a recipe gives both a cup measurement and a gram equivalent, use the grams.

Assuming US and UK tablespoons are the same. A US tablespoon is 14.79 ml. A UK tablespoon is 17.76 ml. The difference is about 20%. For small amounts (1-2 tbsp) in most recipes, this doesn’t matter much. For 8+ tablespoons, you’re getting meaningfully more butter with a UK tablespoon. The calculator uses the US tablespoon (14.175g of butter per tablespoon).

Getting confused by “butter” vs “margarine” density. This calculator is for butter. Margarine and butter substitutes have different densities depending on water content and composition. The conversions here don’t apply to margarine or dairy-free spreads.

Thinking European “blocks” are the same as US sticks. A standard European butter block is 250g. A US stick is 113.4g. They’re not interchangeable by name. If a recipe says “1 block,” that almost certainly means 250g for a European recipe. If it says “1 stick,” that’s 113.4g for a US recipe.

Why butter measurements differ by country

The US stick system developed because American supermarkets standardised butter in 1 lb packages, split into 4 convenient portions. The tablespoon markings on the wrapper followed as a practical portioning aid. No other country adopted this.

The UK historically measured butter by weight in ounces, then switched to metric grams after decimalisation in 1971. Most UK recipes from the 1970s onward use grams; older ones use ounces.

France and most of continental Europe have always used grams. French pastry recipes are almost universally by weight, which is why French baking tends to be more precise and reproducible than American volume-based baking.

Australia uses metric grams and a 250g standard block. New Zealand the same.

The practical consequence: a recipe’s country of origin tells you what measurement system to expect. American recipes: sticks and cups. British recipes: grams or ounces. French/European recipes: grams. The calculator handles all of them.

Weighing butter is always more accurate than measuring by volume or counting tablespoons. A kitchen scale that goes to 1g precision costs about $10 and eliminates every butter conversion question permanently.

The bottom line

Butter conversions trip people up because the units used in recipes depend entirely on where the recipe was written. American recipes assume you have sticks. European recipes assume you have a scale. British recipes assume you have a scale or know your ounces.

The calculator converts between all of them and shows the 4 most useful equivalents simultaneously. The stick diagram translates tablespoon amounts into a visual cut line on the wrapper, which is the most practical output for anyone cooking with US butter.

If you bake regularly from international recipes, write “1 stick = 113g = 8 tbsp” on a piece of tape and stick it inside your cupboard. That single conversion handles 90% of everything you’ll encounter.