Convert fluid ounces to milliliters accurately for recipes, medications, and beverages. Essential for cooking, pharmacy, and international product labeling with precise conversion factors.
1 fluid ounce equals 29.573549417401075 milliliter
Formula: mL = fl oz × 29.5735
Converting fluid ounces to milliliters is essential across culinary, pharmaceutical, and beverage industries. One US fluid ounce equals exactly 29.5735 milliliters, while the UK fluid ounce equals 28.4131 milliliters. Understanding which fluid ounce system applies—US or Imperial—is critical for recipe accuracy, medication dosing, and product compliance in international markets where precision directly affects safety and quality outcomes.
Incorrect fluid ounce to milliliter conversions can result in medication overdoses, failed recipes, and product recalls costing thousands of dollars. Pharmaceutical companies must use precise conversions for FDA and EMA compliance. Culinary professionals face recipe failures when measurements are off by even small amounts. Beverage manufacturers require exact conversions for accurate nutritional labeling across different markets, making this conversion financially and legally significant.
Healthcare professionals and pharmacists must convert fluid ounce measurements to milliliters for accurate medication preparation and patient safety. Liquid medications, syrups, and suspensions are often prescribed in fluid ounces in the United States but must be administered in milliliters using calibrated syringes and dispensers. Dosing errors from incorrect conversions can result in serious patient harm, regulatory violations, and liability issues.
Professional chefs, home cooks, and recipe developers must accurately convert fluid ounce measurements to milliliters for consistent results. American recipes frequently use fluid ounces for liquids while European recipes use milliliters. Precision is essential for baking, sauce-making, and beverage preparation where ingredient ratios directly affect taste, texture, and presentation. Small measurement errors compound across recipes and can ruin dishes.
| fluid ounces | milliliters |
|---|---|
| 1 fl oz | 29.573549 mL |
| 5 fl oz | 147.867747 mL |
| 10 fl oz | 295.735494 mL |
| 50 fl oz | 1478.677471 mL |
| 100 fl oz | 2957.354942 mL |
Formula: mL = fl oz × conversion factor
The fluid ounce is a widely used unit for measuring volume. It is commonly used in various applications and industries worldwide.
The milliliter is a widely used unit for measuring volume. It is commonly used in various applications and industries worldwide.
This fluid ounce to milliliter converter uses high-precision conversion factors to ensure accurate results for professional and academic use.
Our calculator provides results with up to 10 decimal places for maximum accuracy.
One US fluid ounce equals exactly 29.5735 milliliters. If you're using UK/Imperial measurements, one UK fluid ounce equals 28.4131 milliliters. The difference is approximately 1.15 milliliters per fluid ounce. For most cooking applications, rounding to 30 mL is acceptable, but pharmaceutical and scientific applications require the precise 29.5735 mL conversion factor to ensure accuracy and safety.
The US and UK developed different imperial systems historically. In 1824, the UK standardized the Imperial gallon at 277.42 cubic inches, making the Imperial fluid ounce 28.4131 mL. In 1836, the US defined the US gallon at 231 cubic inches, making the US fluid ounce 29.5735 mL. When the UK adopted metric measurements, these differences remained embedded in US law and industry practice, creating ongoing conversion complexity for international trade and recipes.
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