How do you convert fluid ounces to milliliters?
Multiply the number of US fluid ounces by 29.57. For speed, count 30 ml per ounce: the gap is 1.4 %, invisible in a glass, awkward in a baby bottle.
US fluid ounces = milliliters ÷ 29.5735
Common volumes in fluid ounces and milliliters
| 0.5 fl oz (1 tablespoon) | 14.8 ml |
| 1 fl oz | 29.6 ml |
| 2 fl oz (espresso shot) | 59.1 ml |
| 4 fl oz | 118.3 ml |
| 8 fl oz (1 cup) | 236.6 ml |
| 12 fl oz (US can) | 354.9 ml |
| 16 fl oz (US pint) | 473.2 ml |
| 20 fl oz | 591.5 ml |
| 32 fl oz (1 US quart) | 946.4 ml |
| 33.8 fl oz | 1,000 ml (1 liter) |
| 64 fl oz (US half gallon) | 1,892.7 ml |
Show every value
- 1 fl oz = 29.57 ml
- 2 fl oz = 59.15 ml
- 3 fl oz = 88.72 ml
- 4 fl oz = 118.29 ml
- 5 fl oz = 147.87 ml
- 6 fl oz = 177.44 ml
- 7 fl oz = 207.01 ml
- 8 fl oz = 236.59 ml
- 9 fl oz = 266.16 ml
- 10 fl oz = 295.74 ml
- 11 fl oz = 325.31 ml
- 12 fl oz = 354.88 ml
- 13 fl oz = 384.46 ml
- 14 fl oz = 414.03 ml
- 15 fl oz = 443.6 ml
- 16 fl oz = 473.18 ml
- 17 fl oz = 502.75 ml
- 18 fl oz = 532.32 ml
- 19 fl oz = 561.9 ml
- 20 fl oz = 591.47 ml
- 21 fl oz = 621.04 ml
- 22 fl oz = 650.62 ml
- 23 fl oz = 680.19 ml
- 24 fl oz = 709.76 ml
- 25 fl oz = 739.34 ml
- 26 fl oz = 768.91 ml
- 27 fl oz = 798.49 ml
- 28 fl oz = 828.06 ml
- 29 fl oz = 857.63 ml
- 30 fl oz = 887.21 ml
- 31 fl oz = 916.78 ml
- 32 fl oz = 946.35 ml
- 33 fl oz = 975.93 ml
- 34 fl oz = 1,005.5 ml
- 35 fl oz = 1,035.07 ml
- 36 fl oz = 1,064.65 ml
- 37 fl oz = 1,094.22 ml
- 38 fl oz = 1,123.79 ml
- 39 fl oz = 1,153.37 ml
- 40 fl oz = 1,182.94 ml
- 41 fl oz = 1,212.51 ml
- 42 fl oz = 1,242.09 ml
- 43 fl oz = 1,271.66 ml
- 44 fl oz = 1,301.24 ml
- 45 fl oz = 1,330.81 ml
- 46 fl oz = 1,360.38 ml
- 47 fl oz = 1,389.96 ml
- 48 fl oz = 1,419.53 ml
- 49 fl oz = 1,449.1 ml
- 50 fl oz = 1,478.68 ml
- 51 fl oz = 1,508.25 ml
- 52 fl oz = 1,537.82 ml
- 53 fl oz = 1,567.4 ml
- 54 fl oz = 1,596.97 ml
- 55 fl oz = 1,626.54 ml
- 56 fl oz = 1,656.12 ml
- 57 fl oz = 1,685.69 ml
- 58 fl oz = 1,715.26 ml
- 59 fl oz = 1,744.84 ml
- 60 fl oz = 1,774.41 ml
- 61 fl oz = 1,803.99 ml
- 62 fl oz = 1,833.56 ml
- 63 fl oz = 1,863.13 ml
- 64 fl oz = 1,892.71 ml
- 65 fl oz = 1,922.28 ml
- 66 fl oz = 1,951.85 ml
- 67 fl oz = 1,981.43 ml
- 68 fl oz = 2,011 ml
- 69 fl oz = 2,040.57 ml
- 70 fl oz = 2,070.15 ml
- 71 fl oz = 2,099.72 ml
- 72 fl oz = 2,129.29 ml
- 73 fl oz = 2,158.87 ml
- 74 fl oz = 2,188.44 ml
- 75 fl oz = 2,218.01 ml
- 76 fl oz = 2,247.59 ml
- 77 fl oz = 2,277.16 ml
- 78 fl oz = 2,306.74 ml
- 79 fl oz = 2,336.31 ml
- 80 fl oz = 2,365.88 ml
- 81 fl oz = 2,395.46 ml
- 82 fl oz = 2,425.03 ml
- 83 fl oz = 2,454.6 ml
- 84 fl oz = 2,484.18 ml
- 85 fl oz = 2,513.75 ml
- 86 fl oz = 2,543.32 ml
- 87 fl oz = 2,572.9 ml
- 88 fl oz = 2,602.47 ml
- 89 fl oz = 2,632.04 ml
- 90 fl oz = 2,661.62 ml
- 91 fl oz = 2,691.19 ml
- 92 fl oz = 2,720.76 ml
- 93 fl oz = 2,750.34 ml
- 94 fl oz = 2,779.91 ml
- 95 fl oz = 2,809.49 ml
- 96 fl oz = 2,839.06 ml
- 97 fl oz = 2,868.63 ml
- 98 fl oz = 2,898.21 ml
- 99 fl oz = 2,927.78 ml
- 100 fl oz = 2,957.35 ml
- 125 fl oz = 3,696.69 ml
- 150 fl oz = 4,436.03 ml
- 175 fl oz = 5,175.37 ml
- 200 fl oz = 5,914.71 ml
- 225 fl oz = 6,654.04 ml
- 250 fl oz = 7,393.38 ml
- 275 fl oz = 8,132.72 ml
- 300 fl oz = 8,872.06 ml
- 325 fl oz = 9,611.4 ml
- 350 fl oz = 10,350.74 ml
- 375 fl oz = 11,090.07 ml
- 400 fl oz = 11,829.41 ml
- 425 fl oz = 12,568.75 ml
- 450 fl oz = 13,308.09 ml
- 475 fl oz = 14,047.43 ml
- 500 fl oz = 14,786.76 ml
- 550 fl oz = 16,265.44 ml
- 600 fl oz = 17,744.12 ml
- 650 fl oz = 19,222.79 ml
- 700 fl oz = 20,701.47 ml
- 750 fl oz = 22,180.15 ml
- 800 fl oz = 23,658.82 ml
- 850 fl oz = 25,137.5 ml
- 900 fl oz = 26,616.18 ml
- 950 fl oz = 28,094.85 ml
- 1,000 fl oz = 29,573.53 ml
- 1,500 fl oz = 44,360.29 ml
- 2,000 fl oz = 59,147.06 ml
- 2,500 fl oz = 73,933.82 ml
- 3,000 fl oz = 88,720.59 ml
- 3,500 fl oz = 103,507.35 ml
- 4,000 fl oz = 118,294.12 ml
- 4,500 fl oz = 133,080.88 ml
- 5,000 fl oz = 147,867.65 ml
- 5,500 fl oz = 162,654.41 ml
- 6,000 fl oz = 177,441.18 ml
- 6,500 fl oz = 192,227.94 ml
- 7,000 fl oz = 207,014.71 ml
- 7,500 fl oz = 221,801.47 ml
- 8,000 fl oz = 236,588.24 ml
- 8,500 fl oz = 251,375 ml
- 9,000 fl oz = 266,161.77 ml
- 9,500 fl oz = 280,948.53 ml
- 10,000 fl oz = 295,735.3 ml
The US fluid ounce is exactly 29.5735295625 ml, defined as 1/128 of a US gallon. The imperial fluid ounce is 28.4130625 ml, or 1/160 of an imperial gallon. Methodology & sources.
Frequently asked questions
US or imperial fluid ounce?
The US one is 29.57 ml, the imperial 28.41 ml, some 4 % less. American recipes and drinks use the first; in the UK labels have been in milliliters for years, and the fluid ounce survives mainly in speech.
Is a fluid ounce the same as an ounce of weight?
No, and that is the trap. The ounce of weight is 28.35 grams, the fluid ounce 29.57 milliliters. The numbers look alike but measure different quantities; they only roughly coincide for water.
How many milliliters is a US can?
12 fl oz, which is 354.9 ml, usually rounded to 355 ml on the label. The standard European can is 330 ml, slightly less; the 500 ml version corresponds to 16.9 fl oz.
Why does a US label say 240 ml for 8 fl oz?
Because American nutrition labelling counts the fluid ounce as a round 30 ml. The reference serving for drinks is set at 240 ml and printed as 8 fl oz, while eight exact ounces come to 236.6 ml. The 1.4 % gap is written into the rules, not a misprint.
Where does the gap between the US and imperial ounce come from?
From two unrelated gallons. The US gallon carries on the wine gallon of 1707, defined as 231 cubic inches. The imperial gallon of 1824 is the volume of ten pounds of water, so an imperial fluid ounce of water weighs almost exactly one avoirdupois ounce: 28.41 ml against 28.35 g. The coincidence between volume and weight only works with the British ounce.