Approximately how much does the adult liver weigh?

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The adult liver has a substantial and fairly consistent mass, typically around 1.4–1.6 kilograms. Because this range centers near 1.5 kilograms, 1500 g is the most representative estimate for an average adult. Individual factors like body size and sex can shift the weight a bit, but 1.5 kg remains the standard practical value used in exams and clinical practice.