How do I convert milliliters to cups?

Milliliter-to-cup conversion is the most common metric-to-US recipe translation. The "right" answer depends on which standard the recipe uses: US (240 mL/cup), metric (250 mL/cup), or Imperial UK (284 mL/cup historically; modern UK recipes use metric 250 mL/cup). Most international cookbooks specify; American recipes default to 240 mL/cup.

The standard cup definitions:

• US cup: 240 mL (8 US fluid ounces)
• Metric cup: 250 mL (used in Australia, NZ, modern UK)
• UK Imperial cup (legacy): 284 mL (rarely used in modern recipes)
• Japanese cup: 200 mL (used in Japanese recipes + rice cooker measurements)

For most cooking, the 240 mL vs 250 mL difference (~4%) is negligible. For precision baking, it matters.

Standard mL-to-cup conversions (US cup = 240 mL):

Common liquid conversions:

Water + water-based liquids (most accurate): - 60 mL = 1/4 cup (4 tbsp) - 80 mL = 1/3 cup - 120 mL = 1/2 cup - 240 mL = 1 cup - 360 mL = 1.5 cups - 480 mL = 2 cups

Milk, cream, juice, broth, wine: - Same as water for cooking purposes (density very close to 1 g/mL) - 1/4 cup = 60 mL · 1/3 cup = 80 mL · 1/2 cup = 120 mL · 3/4 cup = 180 mL · 1 cup = 240 mL

Honey, syrup, molasses (much denser): - Volume measurement same (1 cup = 240 mL) - Weight different (1 cup honey = 340g vs 1 cup water = 240g) - Measure by volume for recipes; weigh for baking precision

Oils: - Similar volume to water (1 cup = 240 mL) - Slightly less dense (1 cup olive oil = 215g vs 1 cup water = 240g) - Volume measurement is fine for cooking

Common UK/European conversions to US cups:

Metric standard (UK, Australia, NZ, EU):

For practical cooking purposes: use 240 mL OR 250 mL interchangeably as "1 cup." The 4% difference rarely affects results except in precision baking.

For baking precision: - Use weight (grams) instead of volume — eliminates the cup-size ambiguity - See /pages/how-to-convert/cups-to-grams for ingredient-specific weights

Tablespoon + teaspoon to mL:

• 1 tablespoon (US): 15 mL
• 1 teaspoon (US): 5 mL
• 1 dessertspoon: 10 mL (UK/AUS, between tsp + tbsp)

Fluid ounce conversions:

• 1 US fluid ounce: 29.6 mL
• 1 UK Imperial fluid ounce: 28.4 mL
• 1 cup (8 US fl oz): 240 mL
• 1 pint (16 US fl oz): 480 mL
• 1 quart (32 US fl oz): 950 mL
• 1 gallon (128 US fl oz): 3.78 L

Practical cooking math:

For quick mental conversion in the kitchen:

Halving a metric recipe (X mL → cups): - Divide mL by 250 to get metric cups - Or by 240 to get US cups - 500 mL ÷ 240 = 2.08 cups (US) or 2 cups (metric)

Doubling a US recipe (cups → mL): - Multiply US cups by 240 - 2 cups × 240 = 480 mL

For precision (chemistry-level): - Use a graduated measuring cylinder or kitchen scale - 1 mL water = 1g (at 4°C; close enough for cooking) - Easier to weigh than measure mL precisely for small amounts

Why this matters:

A recipe asking for "250 mL milk" from an EU cookbook is essentially identical to "1 cup milk" from a US cookbook. The recipe author rounded — your kitchen experience will too. For most cooking, the difference is invisible.

For pâtisserie + technique-driven baking (croissants, sourdough, pâte feuilletée), measure by weight (grams), not volume, to eliminate cup-size variation.

Common kitchen measuring tools:

• Glass measuring cup (Pyrex): typically marked in both cups + mL — most accurate for liquids
• Dry measuring cups (nested set): marked in cups; for dry ingredients
• Graduated cylinder (scientific): most precise for mL; rarely in kitchens
• Kitchen scale (digital): measures grams; can be tared with container weight (zero)
• Tablespoon + teaspoon set: for small amounts (≤30 mL / 2 tbsp)

For reading recipes from different countries:

1. British/Australian/Kiwi: assume metric cup (250 mL)
2. American: assume US cup (240 mL)
3. European (non-UK): typically metric (250 mL)
4. Japanese: check — could be 200 mL Japanese cup or US/metric
5. Older UK (pre-1970s): Imperial cup (284 mL) — rare; recipes usually specify

If recipe doesn't specify, default to US cup (240 mL) — most published online.

Don't: - Confuse fluid ounces (volume) with weight ounces — different units - Measure dry ingredients with a liquid measuring cup (less accurate) - Eye-level the meniscus at the wrong angle (parallax error) - Use a serving cup as substitute (varies 10-20% from standard)

Common mistakes:

• Using teaspoon as tablespoon: 3x error
• Heaping cups for dry ingredients: 25-50% more weight
• Different cups between brands: measuring cups can vary 5-10%
• Confusing pint (16 fl oz) with US cup (8 fl oz): halving error

Cross-reference: see /pages/how-to-convert/cups-to-grams for cup-to-weight conversion + /pages/how-to-convert/tablespoons-to-grams for small-quantity weights + /pages/how-to-convert/celsius-to-fahrenheit for temperature.

Most published references (NIST Mass Standards, USDA FoodData Central, King Arthur Baking, "The Joy of Cooking", "On Food and Cooking" by Harold McGee) converge on 240 mL = 1 US cup, with 250 mL metric cup as the international standard. The difference is ~4% — invisible in cooking, matters in precision baking.