ML to Oz Calculator

1 US fluid ounce is exactly 29.5735295625 mL. This calculator displays approximately 29.5735 mL at four decimal places. The factor comes from the exact US gallon definition of 3,785.411784 mL divided by 128 fluid ounces.

A standard US shot is 1.5 fl oz, which works out to 44.3603 ml. A jigger is the same measure. For comparison, a single spirit pour in most of Europe ranges from 20 to 40 ml, so a US shot is on the larger end.

1 US customary cup is exactly 8 fluid ounces, or approximately 236.5882 mL. The metric cup used in Australia, Canada, and New Zealand is exactly 250 mL, so the two differ by about 5.7 percent, enough to matter in baking.

1 US fluid ounce is approximately 29.5735 mL, while 1 UK imperial fluid ounce is approximately 28.4131 mL, so the US ounce is roughly 4 percent larger. This calculator uses the US definition only, so if you have a UK recipe, the result will be slightly off without that adjustment.

Divide milliliters by 30 for a quick estimate, then nudge up by about 1.5 percent for greater accuracy. For example, 500 ml / 30 = 16.67 fl oz, very close to the exact value of 16.9070 fl oz and just above a US pint of 16 fl oz.