# Master Guide for American Kitchen Measure Conversions
Converting cups to grams or Fahrenheit to Celsius is the first step to mastering international recipes. American cooking relies on volume, which introduces up to 25% variability in dry ingredients like flour. 120g 1 Cup of Flour
227g Butter Stick
175°C 350°F Equivalent
240ml 1 Cup Volume
# Critical Differences Between Volume and Weight
Volume Measurement (Cups)
Used in US home recipes. Measures the space an ingredient occupies.
- Highly dependent on compaction
- Common 20-30% error in flours
- Inconsistent across cup brands
- Requires sifting for better accuracy
Weight Measurement (Grams)
The standard for European and professional baking. Absolute precision.
- Precision of +/- 1g always
- Consistent, repeatable results
- Less cleanup (single bowl)
- Facilitates mathematical scaling
# Common Ingredient Equivalencies
| Ingredient | 1 Cup (Volume) | Grams (Weight) | Density |
|---|---|---|---|
| All-Purpose Flour | 1 Cup | 120g | Low |
| White Sugar | 1 Cup | 200g | Medium |
| Brown Sugar | 1 Cup | 220g (packed) | High |
| Butter | 1 Cup (2 sticks) | 227g | High |
| Cocoa Powder | 1 Cup | 85g | Very Low |
Is Your Cake Coming Out Dry?
The most common issue with cups is 'dipping the cup' into the flour bag. This compacts the powder, and you might be adding up to 40g of extra flour per cup. The solution is always converting to grams using our calculator.
# Glossary of US Kitchen Units
- Cup
- A unit of volume equal to about 240ml. The backbone of American cooking.
- Tbsp (Tablespoon)
- A large spoon measurement, equal to 15ml or 3 teaspoons.
- tsp (Teaspoon)
- A small spoon measurement, equal to 5ml. Critical for leavening and salt.
- Stick of Butter
- Common US butter format weighing exactly 4oz or 113.5g (half a cup).