You can also calculate the cost of driving from Cincinnati, OH to Detroit, MI based on current local fuel prices and an estimate of your car's best gas mileage. If you're meeting a friend, you might be interested in finding the city that is halfway between Cincinnati, OH and Detroit, MI.
Cocoa beans contain caffeine, so the higher the percentage of cocoa in a chocolate bar, the higher its caffeine content. Likewise for coffee: Ounce for ounce, the more diluted the coffee drink, the less caffeine.
A large 3.5-ounce bar of very dark chocolate, which contains 70 percent to 85 percent cocoa, averages 80 milligrams of caffeine. Regular dark chocolate, with 50 percent to 69 percent cocoa, contains around 70 milligrams in a 3.5-ounce bar.