Question: what is the difference between us and uk ounces?
Answer: The British Imperial fluid ounce is equal to 28.413 milliliters, while in the U.S. Customary System it is equivalent to 29.573 ml. A pint in the British Imperial System is 568.261 milliliters (or 20 fluid ounces), while a U.S. pint is just 473.176 ml (or 16 fluid ounces).