Grams are a weight unit, so you cannot directly compare them to cups or tablespoons. But more on this later. What you can do though is compare grams to ounces or pounds as all of these are weight measurements. 100 grams are roughly 3 ounces (3.5274 precisely) or 1/4 of a pound (0.220462 precisely).

The standardized weight of 100 grams is defined as the mass of 100 cubic centimeters (cc) of pure water at its maximum density and at a temperature of 4 degrees Celsius. This is part of the metric system of measurement and is known as the gram, which is abbreviated as “g.”

One hundred grams, which is about.22 pounds or 3.5 ounces, is a very small amount of weight, so it can sometimes be difficult to guess just how much it is. Knowing how to estimate 100 grams, however, can come in handy for measurements, when calculating calories in certain foods, or when trying to calibrate a scale.