Metacomprehension is defined as readers' evaluations of their performance on a task, involving inferences derived from a text. In two studies metacomprehension was related to characteristics of the inferences required, in terms of 1) amount of information to be kept in long‐term memory (Study 1), 2) amount of information to be kept in short‐term memory (Study 2) and 3) existence of negatives (Study 2). In the first study, 41 psychology students read a text and afterwards judged 1) the correctness of a set of pragmatic inference statements, and 2) their confidence in being correct or the difficulty of judging each statement. In the second study, 81 high‐school students read a text and simultaneously judged 1) the correctness of a set of logical inference statements and 2) their confidence in being correct and the difficulty of judging each statement. In both studies, metacomprehension was not significantly correlated with actual performance. The results indicate that one important source of metacomprehension consists in information processing load. In Study 1, long‐term memory requirements represent this load, in Study 2, the existence of ne