⚛️ Molecular Weight Calculator
Calculate molar mass from chemical formulas
Enter formula with element symbols and counts (e.g., H2O, NaCl, Ca(OH)2)
Molecular Weight
18.015
g/mol
Elemental Composition
| Element | Count | Atomic Weight | Contribution | % |
|---|---|---|---|---|
| O(Oxygen) | 1 | 15.999 | 15.999 | 88.81% |
| H(Hydrogen) | 2 | 1.008 | 2.016 | 11.19% |
| Total | 18.015 | 100% | ||
O
H
🧪 Common Compounds
📊 Element Reference
H
1.01
He
4.00
Li
6.94
Be
9.01
B
10.81
C
12.01
N
14.01
O
16.00
F
19.00
Ne
20.18
Na
22.99
Mg
24.30
Al
26.98
Si
28.09
P
30.97
S
32.06
Cl
35.45
Ar
39.95
K
39.10
Ca
40.08
Fe
55.84
Cu
63.55
Zn
65.38
Br
79.90