Video: Combine the contents of multiple cells into one cell. Applies To: Excel 2010 More... Less. Learn how to combine separate columns of information, such as first and last names, into a single column.
A cup of instant coffee contains about 40 - 120 mg caffeine. A cup is usually understood to contain 150 ml (5 oz in the United States), but the range of measurements is so wide that, for most individuals, it is inaccurate to use these figures as a basis for calculating the exact amount of caffeine consumed in a day.
In general, 200 milligrams of caffeine is equal to one 12-ounce cup of coffee, but coffee drinkers should be aware that there can be tremendous discrepancies in different brews. For example, a grande 16-ounce Starbucks brewed coffee has 320 milligrams of caffeine.