This is the 14630th most frequent German word.
mitgerechnet
"Mitgerechnet" means "included" or "counted in."
In this instance, 'mitgerechnet' serves to include an additional item in the total weight.
Das Gewicht des Gepäcks, mitgerechnet der zusätzliche Tasche, war zehn Kilogramm.
The weight of the luggage, including the additional bag, was ten kilograms.
In this sentence, 'mitgerechnet' denotes the inclusion of oneself in the total count of people.
Es waren sieben Personen da, mich mitgerechnet.
There were seven people there, counting me.
Here, 'mitgerechnet' indicates that someone is included in a group or category.