The units of measurement for weighing are typically grams (g), kilograms (kg), pounds (lbs), or ounces (oz), depending on the context and region. In the metric system, grams and kilograms are commonly used, with 1 kilogram equaling 1000 grams. In the imperial system, pounds and ounces are used, with 1 pound equaling 16 ounces. The appropriate unit depends on the scale of the object being weighed.