Abstract: A method of counting articles includes weighing a multiplicity of articles in n weighing hoppers, and dividing the weight of the articles weighed by each of the weighing hoppers by a preset unit weight to determine the number of articles in each of the weighing hoppers. Combinations of the numbers of the articles are computed, and the one of the combinations which has the number of combined articles equal or closest to a set number is found. Then, a new unit weight is derived from the weight of the articles contained in one or more weighing hoppers and the number of articles contained in the same one or more weighing hoppers, and the preset unit weight is renewed by the derived new unit weight. The method also includes the step of renewing the preset unit weight with the new unit weight only when the new unit weight falls within a preset unit weight range, each time a prescribed number of counting operations are carried out or after a prescribed length of time.