Precise measurements matter in baking, where chemistry meets artistry. When a recipe calls for half a cup of butter, knowing the exact weight in grams ensures consistent results every time you preheat the oven.
Half a US cup of butter weighs 113 grams, according to established baking standards and USDA-aligned weight charts. This measurement corresponds exactly to one standard US butter stick, making it a reliable reference point for both professional bakers and home cooks following American recipes.
How Many Grams Are in Half a Cup of Butter?
- Half a cup of butter equals 113 grams when measured using US standard cup measurements
- This weight matches exactly one US butter stick, which is pre-marked for easy division
- Both salted and unsalted butter weigh the same at this quantity, with salt adding negligible difference
- King Arthur Baking, a respected authority in baking education, confirms 113g as the precise standard
- Weighing butter on a scale provides greater accuracy than volume measurements, which can vary by 10-20%
- For precision baking, always use a kitchen scale when possible
| Measurement | Grams (US) | Notes |
|---|---|---|
| 1 cup | 226g | 2 sticks |
| 3/4 cup | 170-180g | 1.5 sticks |
| 1/2 cup | 113g | 1 stick (standard US) |
| 1/4 cup | 56-60g | Half stick |
| 1/8 cup (2 tbsp) | 28-30g | Quarter stick |
Butter Cup to Grams Conversion Chart
A comprehensive butter conversion chart helps navigate recipes from different regions and traditions. While US recipes typically use sticks and cups, metric-based recipes and international sources often list butter by weight alone.
The US legal cup measures 240ml (8 fluid ounces), though some metric and Australian cups use 250ml. Butter density at room temperature sits around 0.96g/ml, which means weight-to-volume conversions remain relatively consistent across cup sizes. Annie’s Noms and Doves Farm both publish conversion tables that confirm these standard measurements, with minor variations reflecting different cup standards.
Understanding Cup Variations
Different countries use different cup measurements, which can affect the final weight of butter in your recipe. The US cup (240ml) and the metric cup (250ml) create a small but measurable difference in butter weight. Using a square metre calculator or similar conversion tool can help ensure accuracy when working with international recipes.
How Many Grams in a Stick of Butter?
One US butter stick weighs exactly 113 grams and represents precisely half a cup by volume. This standardization makes American butter uniquely convenient for baking, as the sticks are marked with tablespoon measurements and designed to be easily halved or quartered.
European butter blocks typically weigh 250g, which differs significantly from US stick packaging. When adapting European recipes, bakers should account for this difference. King Arthur Baking provides detailed ingredient weight charts that account for these regional variations.
US butter sticks are standardized at 113g and packaged with measurement markings. European blocks typically contain 250g and lack the convenient dividing lines found on American packaging.
Factors Affecting Butter Weight: Salted vs Unsalted
The salt content in salted butter amounts to approximately 2-3% of total weight, which has a negligible impact on the overall measurement. Both salted and unsalted butter measure identically at 113g per half cup when using the same volume.
This equivalence matters for recipe adaptation, particularly in baking where precise ratios determine texture and rise. Swapping salted for unsalted butter requires adjusting added salt separately, but the butter weight itself remains constant.
Does Temperature Affect Butter Weight?
Butter density varies slightly with temperature. Firm, cubed butter used in standard conversion charts differs marginally from softened butter, which packs more densely. USDA food composition databases provide standardized reference values that baking authorities use for their conversion tables.
King Arthur Baking recommends weighing butter for accuracy, as volume measurements can vary 10-20% depending on how the butter is packed or cut. A digital kitchen scale eliminates this uncertainty entirely.
Why Precision Matters in Baking
Baking differs from cooking in its reliance on exact proportions. Chemical reactions during baking require specific ratios of fat, flour, and moisture to achieve proper structure and texture. A difference of even 10-20 grams of butter can affect how gluten develops, how the dough holds air, and ultimately how the finished product rises and sets. For half a cup of butter in grams, check out half cup butter in grams.
For most home cooks, the 113g figure provides sufficient accuracy. Professional bakers and those following challenging recipes—like delicate pastries or sensitive cakes—benefit significantly from using a scale to measure butter precisely.
Packing butter loosely into a measuring cup can result in significantly less butter than intended. Always level the cup and consider weighing for critical recipes.
Authoritative Sources for Butter Weights
Several trusted sources establish the 113g standard for half a cup of butter. King Arthur Baking, a renowned baking education company, publishes ingredient weight charts used by professional and home bakers alike. Their charts cite 113g as the precise weight for half a US cup of butter.
“For the most accurate results in baking, we recommend weighing your ingredients rather than relying on volume measurements.”
— King Arthur Baking Ingredient Weight Chart
Annie’s Noms confirms the same 113g figure across their comprehensive conversion guides. The USDA FoodData Central database aligns with this standard, listing butter weights without differentiation between salted and unsalted varieties for equivalent volumes.
British sources like Doves Farm use 120g for half a cup, likely accounting for the slightly larger metric cup standard. These variations remain minimal—under 5%—and are perfectly acceptable for most recipes.
Summary
Half a cup of butter weighs 113 grams according to US baking standards, matching the weight of one standard US butter stick. This measurement applies equally to salted and unsalted butter, with variations between sources remaining minimal. For precision baking, especially in recipes where chemistry matters, using a kitchen scale provides the most reliable results. Converting currencies like the 27 USD to AUD guide demonstrates how precise conversions matter across different types of measurements.
Frequently Asked Questions
How to measure butter in grams accurately?
Use a digital kitchen scale for the most accurate measurement. Place the butter on the scale and tare to zero, then add butter until you reach 113g for half a cup. This method eliminates the variability inherent in volume measurements.
Is half a cup of butter 100g or 113g?
Half a cup of butter is 113 grams, not 100g. This is the standardized US measurement confirmed by King Arthur Baking and USDA sources. Some rounded approximations use 100g for convenience, but 113g provides precision.
Does salted butter weigh more than unsalted?
Salt content in salted butter (about 2-3%) has a negligible effect on total weight. Both salted and unsalted butter weigh the same at 113g per half cup when measured by volume.
How many tablespoons are in half a cup of butter?
Half a cup of butter equals 8 tablespoons. One US butter stick typically contains 4 tablespoons (half a cup), making it easy to measure without a scale.
Can I use a metric cup instead of a US cup for butter?
A metric cup (250ml) is slightly larger than a US legal cup (240ml), which may result in slightly more butter. The difference is minimal—around 5%—but for precision baking, use weight measurements where possible.
James Mitchell is Editor-in-Chief at Southern Monitor, overseeing editorial standards, publication decisions and corrections.