Cup to Milliliter Converter
Precise volume conversions for cooking, baking, and recipes worldwide
Popular Cup to mL Conversions
| Cups (US) | Milliliters (mL) | Liters | Fluid Ounces |
|---|---|---|---|
| 1/8 cup | 29.57 mL | 0.030 L | 1 fl oz |
| 1/4 cup | 59.15 mL | 0.059 L | 2 fl oz |
| 1/3 cup | 78.86 mL | 0.079 L | 2.67 fl oz |
| 1/2 cup | 118.29 mL | 0.118 L | 4 fl oz |
| 2/3 cup | 157.73 mL | 0.158 L | 5.33 fl oz |
| 3/4 cup | 177.44 mL | 0.177 L | 6 fl oz |
| 1 cup | 236.59 mL | 0.237 L | 8 fl oz |
| 1.5 cups | 354.88 mL | 0.355 L | 12 fl oz |
| 2 cups | 473.18 mL | 0.473 L | 16 fl oz |
| 3 cups | 709.76 mL | 0.710 L | 24 fl oz |
| 4 cups | 946.35 mL | 0.946 L | 32 fl oz |
| 8 cups | 1,892.71 mL | 1.893 L | 64 fl oz |
Conversion Formula and Steps
How to Convert Cups to Milliliters
- Identify the cup type: Determine whether you’re working with US customary (236.588 mL), US legal (240 mL), metric (250 mL), or imperial (284.131 mL) cups.
- Multiply the value: Take your cup measurement and multiply it by the appropriate conversion factor. For standard US cups, multiply by 236.588.
- Round appropriately: For cooking purposes, rounding to the nearest whole number or one decimal place is usually sufficient (e.g., 236.59 mL).
- Verify the result: Double-check your calculation, especially for recipes requiring precision like baking.
2.5 cups × 236.588 = 591.47 mL ≈ 591 mL
Cup Standards Worldwide
US Customary
US Legal
Metric Cup
Imperial (UK)
The difference between cup measurements matters most in baking where precision affects texture and rise. For liquid ingredients in general cooking, the variance between US and metric cups (about 14 mL) rarely impacts the final dish significantly.
Cooking and Baking Applications
Liquids in Recipes
Converting cups of water, milk, oil, or broth to milliliters provides accuracy when following international recipes or using metric kitchen scales.
Baking Measurements
Precise flour, sugar, and liquid measurements in milliliters help achieve consistent results in cakes, cookies, and bread where ratios matter significantly.
Beverage Preparation
Coffee brewing ratios, smoothie recipes, and cocktail mixing often require exact volume measurements that benefit from cup-to-mL conversion.
Nutritional Tracking
Food diaries and nutrition apps frequently use milliliters for portion control, making it necessary to convert recipe cups to mL for accurate logging.
International Recipe Adaptation
When following recipes from different countries, converting cups to milliliters bridges measurement system differences for successful dish recreation.
Commercial Kitchen Scaling
Restaurant recipes often need scaling from home measurements (cups) to larger metric volumes (milliliters or liters) for batch preparation.
Fractional Cup Measurements
| Fraction | Decimal | US Cup (mL) | Metric Cup (mL) |
|---|---|---|---|
| 1/16 cup | 0.0625 | 14.79 mL | 15.63 mL |
| 1/8 cup | 0.125 | 29.57 mL | 31.25 mL |
| 1/6 cup | 0.167 | 39.51 mL | 41.75 mL |
| 1/4 cup | 0.25 | 59.15 mL | 62.50 mL |
| 1/3 cup | 0.333 | 78.86 mL | 83.25 mL |
| 3/8 cup | 0.375 | 88.72 mL | 93.75 mL |
| 1/2 cup | 0.5 | 118.29 mL | 125.00 mL |
| 5/8 cup | 0.625 | 147.87 mL | 156.25 mL |
| 2/3 cup | 0.667 | 157.73 mL | 166.75 mL |
| 3/4 cup | 0.75 | 177.44 mL | 187.50 mL |
| 7/8 cup | 0.875 | 207.01 mL | 218.75 mL |
Cultural and Regional Differences
North America
The United States and Canada predominantly use cup measurements in home cooking. US recipes specify cups for both dry and liquid ingredients, with the standard US customary cup (236.59 mL) being most prevalent. Canadian recipes may use either imperial or metric cups depending on the recipe’s age and source.
Europe and UK
Most European countries have fully adopted the metric system, using milliliters and grams rather than cups. The UK historically used imperial cups (284.13 mL) but modern British recipes increasingly specify milliliters or grams. Some traditional British cookbooks still reference the old imperial measurements.
Australia and New Zealand
These countries use the metric cup (250 mL) as their standard. Australian recipes are particularly noteworthy because while they use metric cups, they also employ a unique tablespoon measurement (20 mL instead of the international 15 mL), which affects conversions for smaller measurements.
Asia
Asian countries generally use metric measurements (milliliters and grams). Japanese recipes commonly use milliliters and a traditional “cup” measure (gō) of 180 mL for rice cooking. Chinese recipes often specify ingredients by weight or use Chinese units like “jin” rather than cups.
Frequently Asked Questions
How many mL in a cup?
A standard US cup equals 236.59 milliliters. However, this varies by region: metric cups contain 250 mL, US legal cups hold 240 mL, and imperial cups measure 284.13 mL. For most American recipes, use 236.59 mL per cup.
Are cups and mL interchangeable in recipes?
Yes, with proper conversion. While cups measure volume just like milliliters, you must convert accurately. For liquids, the difference between measurement systems has minimal impact on most dishes, but baking requires precision since ingredient ratios affect chemical reactions.
Why do different countries have different cup sizes?
Cup measurements evolved independently across regions before international standardization efforts. The US retained its traditional measurement system, while most other countries adopted the metric system. Imperial measurements from British colonial history influenced some regions, creating the variety seen today.
Should I use US or metric cups for international recipes?
Check the recipe’s origin. American recipes typically mean US cups (236.59 mL), while Australian, Canadian, and most international recipes use metric cups (250 mL). When in doubt, the recipe source’s location indicates which standard to use. The 14 mL difference matters more in baking than general cooking.
How do I convert cups to liters?
First convert cups to milliliters, then divide by 1,000. For US cups: multiply cups by 236.59, then divide by 1,000. Example: 4 cups = 946.36 mL = 0.946 liters. For metric cups: multiply by 250, then divide by 1,000.
Does the ingredient type affect cup to mL conversion?
No, cups to milliliters measures volume only, not weight. Whether measuring water, oil, or milk, 1 cup always equals the same number of milliliters. However, 1 cup of flour weighs differently than 1 cup of water, which is why serious bakers prefer weighing ingredients in grams.
What’s the difference between liquid and dry measuring cups?
While both measure the same volume, they’re designed differently. Liquid measuring cups have spouts and measurement lines below the rim for easy pouring without spilling. Dry measuring cups fill to the rim for leveling off excess. Both hold identical volumes when filled properly.
Can I use a US cup measure for metric recipes?
You can, but convert appropriately. If a metric recipe calls for 250 mL (1 metric cup) and you use a US cup (236.59 mL), you’ll be about 13 mL short. For one cup this rarely matters, but larger quantities or precision baking may require adjustment. Add roughly 5% more when using US cups for metric recipes.
Reverse Conversion: mL to Cups
| Milliliters (mL) | US Cups | Metric Cups | Common Equivalent |
|---|---|---|---|
| 50 mL | 0.21 cups | 0.20 cups | ≈ 1/5 cup |
| 100 mL | 0.42 cups | 0.40 cups | ≈ 2/5 cup |
| 150 mL | 0.63 cups | 0.60 cups | ≈ 2/3 cup |
| 200 mL | 0.85 cups | 0.80 cups | ≈ 7/8 cup |
| 250 mL | 1.06 cups | 1.00 cup | 1 metric cup |
| 500 mL | 2.11 cups | 2.00 cups | 2 metric cups |
| 750 mL | 3.17 cups | 3.00 cups | 3 metric cups |
| 1000 mL (1 L) | 4.23 cups | 4.00 cups | 4 metric cups |
Measuring Tips for Accuracy
For Liquid Ingredients
Place the measuring cup on a flat surface at eye level. Pour the liquid until it reaches the desired measurement line. The surface tension creates a slight curve (meniscus); read the measurement at the bottom of this curve for accuracy. Avoid holding the cup while measuring, as this introduces angle errors.
For Dry Ingredients
Spoon the ingredient into the measuring cup without packing (unless the recipe specifies “packed”). Once filled, use a straight edge like a knife or spatula to level off the excess. Never shake or tap the cup, as this compresses the ingredient and increases the amount beyond the intended volume.
Converting Between Systems
When following recipes from different countries, note which cup standard they use. Metric recipes from Australia, Europe, or modern Canadian sources likely mean 250 mL cups. American recipes use 236.59 mL cups. Check cookbook introductions or recipe headnotes for clarification if unsure.
Kitchen Scale Alternative
For maximum accuracy, especially in baking, weigh ingredients in grams rather than measuring by volume. Different brands and types of flour, sugar, or other dry goods can vary significantly in density, making weight measurements more reliable than volume measurements for consistent results.