Butter Converter

Convert butter measurements instantly with this free butter converter. Type an amount into any field, sticks, cups, tablespoons, teaspoons, ounces, grams, pounds, kilograms or milliliters, and the other eight update automatically using butter's real density rather than a water-based ratio.

Key Features

• Nine units: sticks, cups, tablespoons, teaspoons, ounces, grams, pounds, kilograms and milliliters
• Fraction display: shows "1/2 cup" instead of "0.5 cups"
• Quick presets: common amounts like 1/4 cup, 1 stick, 1 tbsp
• Quick Convert: direct unit-to-unit conversion for one-off lookups
• Smart input: paste "2 cups" and it detects the unit
• Copy buttons: one-click copying of any result

Below the tool you'll find the reasoning behind the numbers, the differences between US sticks and European blocks, and six conversion tables you can save or print.

What Is a Butter Converter?

A butter converter is a measurement tool that turns butter quantities into a different unit, whether that means weight, volume, or a stick count. It relies on butter's actual density instead of treating butter like a generic liquid or a dry ingredient.

Water measures almost the same by weight or by volume, so most cooks never think twice about it. Butter doesn't behave that way, and that gap is exactly why this kind of calculator exists instead of a plain unit converter.

What it converts between:

• Weight units: grams, kilograms, ounces, pounds
• Volume units: cups, tablespoons, teaspoons, milliliters
• Stick-based units: whole sticks, half sticks, tablespoon markings

The main reason anyone reaches for this is recipe scaling. That job gets a lot bigger when the whole dish comes from a recipe written for a different measurement system, not just one ingredient on the list.

Which Units Can Butter Be Converted Between?

Butter moves between nine common units in most kitchens: grams, kilograms, ounces, pounds, cups, tablespoons, teaspoons, milliliters, and sticks.

• Cups, tablespoons, and teaspoons: volume units
• Grams, kilograms, ounces, and pounds: weight units

Moving between those two groups is where density comes in. A tablespoon of butter and a tablespoon of water don't weigh the same amount, even though they fill the same spoon.

Key figures worth memorizing:

• 1 cup butter ≈ 227 grams
• 1 tablespoon butter ≈ 14 grams
• 1 stick of butter = 113 grams
• 1 pound of butter = 454 grams
• 1 kilogram of butter = 1,000 grams

Milliliters show up less often for solid butter, but they matter once a recipe calls for melted butter measured by volume instead of weight. The same gram-to-cup math applies to flour, sugar, and rice too, and a general grams to cups converter handles that broader swap, since every ingredient carries its own density figure.

How Does Butter Density Affect Volume-to-Weight Conversion?

Density is the number that makes volume-to-weight conversion possible at all.

International food composition data puts butter's density at roughly 0.911 grams per milliliter at room temperature. A generic converter assumes 1 milliliter weighs 1 gram, the way it would for water, and that assumption is wrong for butter every time.

Because butter is lighter than water, a cup of it weighs less than a cup of water even though the cup itself hasn't changed size. That single figure is the whole reason a butter converter needs to exist separately from a standard unit calculator.

What shifts the number slightly:

• Temperature: cold butter packs a little denser than softened butter
• Butterfat percentage: higher-fat butters run marginally lighter per milliliter
• Air content: churning leaves a small amount of air trapped inside the structure

None of these variables shift the number enough to matter in a home kitchen. They matter more in commercial baking, where a gram of drift across a large batch compounds fast.

Why Does Melted Butter Measure Differently Than Solid Butter?

Melted butter loses the trapped air that solid butter holds onto, so the same weight ends up taking up less space once it's liquid.

Before melting: a packed cup includes small air pockets between the solid pieces, which is why softened butter can be pressed down and still leave room in the cup.

After melting: those pockets disappear, and the butter settles into a smaller, denser volume for the exact same weight.

This is where recipe wording actually matters. "1 cup melted butter" measured after melting and "1 cup butter, melted" measured before melting are not the same fill line, and mixing the two up is a common source of a greasy or dense finished bake.

Weighing on a kitchen scale sidesteps the whole problem, since a gram of butter weighs a gram whether it's solid, softened, or melted.

Does Salted Butter Weigh the Same as Unsalted Butter?

US law sets the same 80% milkfat floor for both, so salted and unsalted butter carry the same standard conversion figures (21 U.S.C. 321a, enacted 1923).

Salt adds a small, fairly consistent amount of mass to the total. For recipe conversion purposes, that difference is small enough to ignore.

• What changes between them: sodium content and flavor
• What stays the same: cup, tablespoon, and stick equivalents

European-style butters shift density more than salt ever does, since they're churned to a higher butterfat percentage than standard American supermarket butter.

How Much Butter Is in a Standard Stick?

A standard US stick of butter weighs 113 grams.

Stick equivalents:

• 113 grams
• 1/2 cup
• 8 tablespoons
• 4 ounces

Brands like Land O'Lakes print tablespoon lines directly on the wrapper, so a stick can be cut without a scale for rough measurements. Four sticks make up a full pound, which lines up with the avoirdupois ounce system used across US customary units.

This standard is specific to the United States. It doesn't carry over to butter sold in blocks elsewhere, which is where regional differences start to matter.

How Do Butter Measurements Differ by Country?

The international standard for butter itself is nearly identical everywhere: a minimum of 80% milkfat and a maximum of 16% water, set by the Codex Alimentarius standard for butter (CXS 279-1971, amended 2018). What differs is how that butter gets packaged and measured in each kitchen.

UK block sizing isn't fixed the way the US stick is. Arla cut its Lurpak and Anchor blocks from 250 grams to 200 grams in 2023, a 20% reduction that The Grocer reported at the time, while several other British brands kept the older 250g size.

Volume measurement adds another layer of regional variance on top of weight. Australia's National Measurement Institute defines a tablespoon as exactly 20 milliliters, well above the roughly 14.8 milliliters used in the US, so an Australian recipe converted by tablespoon count without adjusting for that gap will run heavy on butter.

Converting a US recipe for a UK or Australian kitchen almost always means converting cups to grams rather than swapping one weight unit for another, since UK and Australian home baking defaults to weight far more often than American recipes do.

Should Butter Be Measured by Weight or by Volume?

Weight removes the packing-density error that volume measurement can't avoid. Volume still gets the job done for most everyday cooking.

Volume works fine when:

The batch is small, the recipe is forgiving, and a few grams of drift won't change the outcome. Weeknight cookies and a pan of brownies fall here.

Weight matters when:

The recipe is fat-sensitive, like laminated dough, macarons, or anything with a tight ratio between butter and flour. A small miss compounds across every layer or every fold.

The stick markings covered earlier are really a volume method wearing a weight costume. Cutting at the printed line is faster than pulling out a scale, but it inherits the same packing risk as a measuring cup once the stick has been softened and reshaped.

Kitchen Scale or Measuring Cup: Which Is More Accurate for Butter?

A digital scale wins on accuracy because it skips the two things that make cups unreliable: air pockets and inconsistent packing pressure.

Cook's Illustrated tested how differently people scoop the same ingredient into a measuring cup and found scooped amounts varying by as much as 26% between testers using a cup not built for dry ingredients. Butter runs into the same packing problem, since a loosely pressed half cup and a firmly packed half cup are not the same amount of butter even though the marking on the cup says otherwise.

Kitchen scale:

• Removes packing variance entirely
• OXO's Good Grips food scale, a Cook's Illustrated pick, reads in 1-gram increments
• Adds one extra step and one extra tool to the counter

Measuring cup:

• Faster, no equipment beyond what's already in the drawer
• Vulnerable to air gaps at the edges of softened butter
• Accuracy depends heavily on how hard the butter was pressed in

Stick wrapper markings sit in between the two. They're weight-based in origin but volume-based in practice, which makes them a reasonable middle ground when no scale is on hand.

How to Convert Butter Between Cups, Grams, and Tablespoons

Converting butter comes down to three moves: identify the starting unit, apply the right density or stick figure, and check the result against the key figures covered earlier.

1. Identify whether the recipe gives volume (cups, tablespoons) or weight (grams, ounces)
2. Match that amount to the nearest stick fraction or gram figure
3. Adjust for physical state if the butter is melted rather than solid
4. Round to a kitchen-practical number, not a long decimal

Converting Cups to Grams

One cup of butter runs about 227 grams, and every fraction of a cup scales from that base number.

Quick fractions: half a cup is 113 grams, a third of a cup is about 76 grams, and a quarter cup is 57 grams.

These figures assume solid, softened butter packed the way a stick would naturally sit in a measuring cup, not melted butter poured to the same line.

Converting Grams to Tablespoons or Sticks

Fourteen grams equals roughly one tablespoon, and 113 grams equals one full stick.

• 50 grams ≈ 3.5 tablespoons
• 100 grams ≈ 7 tablespoons
• 200 grams ≈ 1¾ sticks

Working backward from grams to sticks is the most common direction home bakers need, since US recipes are still written in sticks far more often than European ones.

Rounding Rules for Recipe Use

Recipe conversion tolerates rounding. Scientific or commercial measurement doesn't.

King Arthur Baking's own guidance holds that a home recipe stays on track within about 5 grams of the written amount, which is more slack than most cooks assume they have.

The most common execution mistake is applying solid butter's density to a melted-butter measurement, which quietly introduces the same error the earlier section on melted versus solid butter already covered.

When Do Standard Butter Conversion Figures Not Apply?

Standard butter conversion figures assume plain, solid, commercially churned butter at 80% milkfat. Several common products fall outside that assumption entirely.

Whipped butter is the clearest case. Because air is deliberately worked into it, a cup of whipped butter contains noticeably less actual butter than a cup of the solid version, so applying a standard gram-per-cup figure overstates how much fat is really in the bowl.

Homemade and small-batch cultured butter carry their own risk too. A batch churned at home doesn't answer to any packaging standard, so its moisture and fat ratio can drift from the 80% floor that store-bought butter is built around.

High-altitude baking doesn't change the conversion math itself, since a gram is still a gram at any elevation. It does change how packed volume measurements behave once the butter is creamed with sugar, which is a separate problem from unit conversion but gets confused with it often enough to mention here.

Plain solid butter from a standard 80% milkfat block, salted or unsalted, American or European style, is where every figure in this piece applies without adjustment.

FAQ on Butter Converter

What Is the Difference Between a Butter Converter and a Generic Unit Converter?

A generic unit converter assumes 1 milliliter weighs 1 gram, which only holds true for water. A butter converter builds in butter's actual density, about 0.911 grams per milliliter, so cups, tablespoons, and sticks convert to grams correctly instead of relying on a flat, wrong ratio.

Can Butter Conversion Figures Be Used for Margarine or Oil Substitutions?

Margarine sits close enough to butter's density that the same gram and cup figures work as a rough guide for it. Oil is different: it carries none of butter's water content, so a straight 1:1 volume swap runs richer and greasier than the original recipe intended.

Why Do Butter Wrapper Markings Differ Between Brands?

Wrapper markings assume a specific stick shape tied to the standard 113-gram stick. Land O'Lakes and other national brands print tablespoon lines matched to that shape, but store-brand or private-label sticks can run slightly off it, making the printed lines less dependable for exact measurement.

Butter Conversion Tables

Every figure below uses the standard 113-gram US stick and 227-gram cup. Highlighted cells mark the values most recipes call for.

Standard Butter Measurements

Tablespoon to Other Measurements

Butter Substitute Conversion Ratios

International Butter Conversions

Temperature-Based Butter Conversions

Common Recipe Conversions