Cooking Ingredient Converter
Turn US cups, tablespoons, and teaspoons of common ingredients into grams, ounces, pounds, or kilograms — using real ingredient weights, not rough guesses.
1 cups (US) of All-purpose flour ≈ 120 grams (g)
How It Works
Formula: mass (g) = amount × (volume of your unit in mL) × (ingredient grams per mL).
The tool first converts your volume to millilitres using exact US customary factors, then multiplies by the ingredient’s typical density (its gram weight per US cup ÷ 236.588 mL). For example, 1 US cup of all-purpose flour = 120 g, and 1 US cup of honey = 340 g.
Note: Volume-to-mass conversion depends on the ingredient. A cup of flour and a cup of honey do not weigh the same. Always weigh sticky or variable ingredients (honey, brown sugar) for best results.
Frequently Asked Questions
How do you convert cups to grams?
Multiply the number of cups by the ingredient’s gram weight per US cup. For example, 1 US cup of all-purpose flour weighs about 120 g and 1 US cup of granulated sugar about 198 g. UnitFig applies the exact US cup volume (236.588 mL) and each ingredient’s typical gram weight from King Arthur Baking’s ingredient weight chart.
Why does flour weight vary between recipes?
A US cup is a fixed volume (236.588 mL), but how you fill it changes the mass: a spooned-and-leveled cup of all-purpose flour is about 120 g, while a scooped cup can be heavier. That is why professional bakers weigh ingredients in grams. UnitFig shows typical values and recommends weighing for precision.
Are the volume units exact?
Yes. The US customary volume factors are exact by international definition: 1 US cup = 236.5882365 mL, 1 US tablespoon = 14.78676478125 mL, 1 US teaspoon = 4.92892159375 mL, and 1 US fluid ounce = 29.5735295625 mL (NIST SP 330).
Can I print or save the result as PDF?
Yes. Use the “Print / Save as PDF” button on the tool — it prints only your input amount, the ingredient, and the converted mass, formatted for A4.
Sources & Accuracy
US customary volume factors are exact international definitions:
- • 1 US cup = 236.5882365 mL (exact, 8 US fl oz)
- • 1 US tablespoon = 14.78676478125 mL (exact, 1/16 cup)
- • 1 US teaspoon = 4.92892159375 mL (exact, 1/48 cup)
- • 1 US fluid ounce = 29.5735295625 mL (exact, 1/8 cup)
Ingredient gram weights per US cup are taken from King Arthur Baking’s published ingredient weight chart — real, widely used culinary reference values that vary slightly with measuring method:
- • All-purpose flour 120 g · Bread flour 127 g · Whole wheat flour 113 g
- • Granulated sugar 198 g · Brown sugar (packed) 213 g · Powdered sugar 113 g
- • Butter 227 g · Vegetable oil 198 g · Honey 340 g · Maple syrup 312 g
- • Milk 240 g · Water 237 g · Cocoa powder 85 g · Rolled oats 90 g
- • Cornstarch 120 g · Table salt 273 g (per 1 US cup)
Volume definitions: NIST SP 330 (SI). Ingredient weights: King Arthur Baking — Ingredient Weight Chart.
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Last Updated 2026 | Volume factors verified against NIST SP 330; ingredient weights per King Arthur Baking