Biology
Pie Chart of Major Human Organs by Weight
Last reviewed on 2026-05-22.
Biology — verifiable data, editable template
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Skin is the largest single organ in the human body by weight, followed by the liver, brain, and lungs. Average weights for an adult.
The data
- Skin — 3800 grams
- Liver — 1500 grams
- Brain — 1400 grams
- Lungs — 1200 grams
- Heart — 310 grams
- Kidneys — 290 grams
- Spleen — 170 grams
Source
Standard anatomy / forensic medicine references.
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