How much volume is a gram of ground herbs?

The volume of a gram of ground herbs can vary depending on the type and grind consistency of the herbs. On average, 1 gram of ground herbs is approximately equal to 0.1 to 0.2 milliliters, which translates to about 0.2 to 0.4 teaspoons. However, for more precise measurements, it's best to check specific herb densities or use a scale.