INTERACTIVE CHEMISTRY TOOLS
Body Elements Calculator & Periodic Name Speller
Explore the chemical composition of the human body using ICRP reference data and spell any name using official IUPAC element symbols.
INTERACTIVE TOOL #1 · ICRP REFERENCE MAN MODEL
Human Body Element Composition & Raw Value Calculator
Adjust your body weight (kg) to calculate the exact mass, estimated atom count, and pure reagent market value of elements inside your body.
kg
Top 6 CHNOPS Elements Share
99.15% (67.42 kg)
O · C · H · N · Ca · P
Estimated Total Atoms
≈ 6291.49 × 10²⁷
Hydrogen (H) makes up ~62% by atom count
Pure Element Reagent Value (USD)
$88.35 USD
Raw industrial/reagent element market estimate
Mass Fraction Distribution68 kg = 100%
| Element | Mass (%) | Weight in Body | Atoms (×10²⁴) | Raw Value (USD) | Biological Role |
|---|---|---|---|---|---|
| O 氧 #8 · 15.999 u | 65% | 44.20 kg | 1663.68 | $13.26 | Primary component of body water and cellular respiration |
| C 碳 #6 · 12.011 u | 18.5% | 12.58 kg | 630.73 | $31.45 | Backbone of all proteins, lipids, carbohydrates, and DNA |
| H 氢 #1 · 1.008 u | 9.5% | 6.46 kg | 3859.34 | $29.07 | Water molecules, organic bonds, and ATP proton gradients |
| N 氮 #7 · 14.007 u | 3.2% | 2.18 kg | 93.55 | $0.87 | Essential building block of amino acids and nucleic acids |
| Ca 钙 #20 · 40.078 u | 1.5% | 1.02 kg | 15.33 | $6.12 | Structural matrix of bones/teeth and muscle/nerve signaling |
| P 磷 #15 · 30.974 u | 1% | 0.68 kg | 13.22 | $2.72 | ATP energy currency, cell membranes, and bone mineral |
| K 钾 #19 · 39.098 u | 0.4% | 0.27 kg | 4.19 | $4.08 | Intracellular fluid balance, heartbeat, and nerve impulses |
| S 硫 #16 · 32.06 u | 0.3% | 0.20 kg | 3.83 | $0.05 | Disulfide bonds in proteins, keratin, and enzymes |
| Na 钠 #11 · 22.99 u | 0.2% | 0.14 kg | 3.56 | $0.48 | Extracellular fluid regulation and nerve transmission |
| Cl 氯 #17 · 35.45 u | 0.2% | 0.14 kg | 2.31 | $0.03 | Gastric acid (HCl) digestion and electrolyte balance |
| Mg 镁 #12 · 24.305 u | 0.1% | 68.0 g | 1.68 | $0.22 | Cofactor for 300+ enzymes and muscle relaxation |
| Fe 铁 #26 · 55.845 u | 0.006% | 4.1 g | 0.04 | $0.00 | Core atom of hemoglobin transporting oxygen in blood |
| Zn 锌 #30 · 65.38 u | 0.0032% | 2.2 g | 0.02 | $0.01 | Immune function, wound healing, DNA synthesis, and taste |
| Cu 铜 #29 · 63.546 u | 0.0001% | 0.1 g | 0.00 | $0.00 | Iron metabolism, connective tissue, and antioxidant enzymes |
| I 碘 #53 · 126.9 u | 0.00002% | 0.0 g | 0.00 | $0.00 | Essential component of thyroid hormones regulating metabolism |
INTERACTIVE TOOL #2 · PERIODIC SPELLING LAB
Spell Your Name in Periodic Table Element Tiles
Enter any English name or word to automatically decompose it into official IUPAC element symbol tiles.
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Try our interactive element quizzes or visit our sister web arcade portal.