Element Mass Calculator

Q: How do you calculate the mass of an element from its volume?

Mass equals density multiplied by volume: m = ρ × V. Select the element to get its density, enter the volume in cubic centimeters (cm³), and the calculator instantly computes the mass in grams. This relationship is fundamental to chemistry and materials science.

Select any element and enter a volume to instantly calculate the mass using the formula m = density x volume.

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How to Use the Element Mass Calculator

This calculator uses the fundamental relationship between mass, density, and volume to compute the mass of any chemical element. Select an element from the dropdown menu, which lists all 99 elements with known density values along with their atomic number and density in grams per cubic centimeter. Then enter the volume of the element in cubic centimeters (cm³). The calculator instantly multiplies the density by the volume to give you the mass in grams.

This tool is useful in chemistry labs for calculating expected sample masses, in materials science for estimating component weights, in engineering for structural analysis, and in education for understanding the physical properties of elements. The density values represent standard conditions at 20°C and 1 atmosphere of pressure.

The Mass-Density-Volume Formula

The relationship between mass, density, and volume is expressed as:

m = ρ x V — Mass equals density times volume
ρ = m / V — Density equals mass divided by volume
V = m / ρ — Volume equals mass divided by density

Where m is mass in grams (g), ρ (rho) is density in grams per cubic centimeter (g/cm³), and V is volume in cubic centimeters (cm³). This formula applies to any substance, not just elements, as long as you know the correct density.

Understanding Element Densities

Element densities span an enormous range. The lightest element, hydrogen gas, has a density of just 0.00008988 g/cm³ at standard conditions, while the densest element, osmium, reaches 22.587 g/cm³. This means a cubic centimeter of osmium weighs over 250,000 times more than the same volume of hydrogen gas. Among everyday metals, aluminium (2.699 g/cm³) is relatively light, iron (7.874 g/cm³) is moderate, and gold (19.282 g/cm³) is notably heavy.

Practical Applications

Knowing element masses from volumes is essential in many fields. Jewelers calculate gold mass to determine value. Engineers estimate the weight of metal components before fabrication. Chemists prepare precise amounts of reagents for reactions. Nuclear physicists compute fuel rod masses for reactor design. Even archaeologists use density measurements to authenticate metal artifacts by comparing expected versus actual masses.

Frequently Asked Questions

How do you calculate the mass of an element from its volume?

Mass equals density multiplied by volume: m = ρ x V. Select the element to get its density, enter the volume in cubic centimeters (cm³), and the calculator instantly computes the mass in grams.

What is density and how does it relate to mass and volume?

Density is the mass per unit volume of a substance, typically measured in g/cm³. It is an intrinsic property of each element. The formula ρ = m / V can be rearranged to find mass (m = ρ x V) or volume (V = m / ρ).

Which element has the highest density?

Osmium (Os) is the densest naturally occurring element at 22.587 g/cm³, followed closely by Iridium (Ir) at 22.56 g/cm³. Both are platinum-group metals.

Why do gases have such low density values?

Gas densities listed here are at standard temperature and pressure (STP). Gas molecules are spread far apart compared to solids and liquids, resulting in densities thousands of times lower.

Are the density values exact for all elements?

Density values for common stable elements are well-established and accurate. For radioactive and synthetic elements beyond element 99, densities may be estimated, as these elements are too short-lived to measure directly.

Element Density Reference Table

Densities at standard conditions (20°C, 1 atm). Gases listed at STP density. Elements 100-118 have no measured density.

Z	Symbol	Element	Density (g/cm³)	State
1	H	Hydrogen	8.988e-05	Gas
2	He	Helium	0.0001785	Gas
3	Li	Lithium	0.534	Solid
4	Be	Beryllium	1.85	Solid
5	B	Boron	2.34	Solid
6	C	Carbon	2.267	Solid
7	N	Nitrogen	0.0012506	Gas
8	O	Oxygen	0.001429	Gas
9	F	Fluorine	0.001696	Gas
10	Ne	Neon	0.0008999	Gas
11	Na	Sodium	0.971	Solid
12	Mg	Magnesium	1.738	Solid
13	Al	Aluminium	2.699	Solid
14	Si	Silicon	2.3296	Solid
15	P	Phosphorus	1.82	Solid
16	S	Sulfur	2.067	Solid
17	Cl	Chlorine	0.003214	Gas
18	Ar	Argon	0.001784	Gas
19	K	Potassium	0.862	Solid
20	Ca	Calcium	1.55	Solid
21	Sc	Scandium	2.989	Solid
22	Ti	Titanium	4.506	Solid
23	V	Vanadium	6.11	Solid
24	Cr	Chromium	7.15	Solid
25	Mn	Manganese	7.44	Solid
26	Fe	Iron	7.874	Solid
27	Co	Cobalt	8.9	Solid
28	Ni	Nickel	8.908	Solid
29	Cu	Copper	8.96	Solid
30	Zn	Zinc	7.134	Solid
31	Ga	Gallium	5.907	Solid
32	Ge	Germanium	5.323	Solid
33	As	Arsenic	5.776	Solid
34	Se	Selenium	4.809	Solid
35	Br	Bromine	3.122	Liquid
36	Kr	Krypton	0.003733	Gas
37	Rb	Rubidium	1.532	Solid
38	Sr	Strontium	2.64	Solid
39	Y	Yttrium	4.469	Solid
40	Zr	Zirconium	6.506	Solid
41	Nb	Niobium	8.57	Solid
42	Mo	Molybdenum	10.22	Solid
43	Tc	Technetium	11.5	Solid
44	Ru	Ruthenium	12.37	Solid
45	Rh	Rhodium	12.41	Solid
46	Pd	Palladium	12.023	Solid
47	Ag	Silver	10.501	Solid
48	Cd	Cadmium	8.69	Solid
49	In	Indium	7.31	Solid
50	Sn	Tin	7.287	Solid
51	Sb	Antimony	6.685	Solid
52	Te	Tellurium	6.232	Solid
53	I	Iodine	4.93	Solid
54	Xe	Xenon	0.005887	Gas
55	Cs	Caesium	1.873	Solid
56	Ba	Barium	3.594	Solid
57	La	Lanthanum	6.145	Solid
58	Ce	Cerium	6.77	Solid
59	Pr	Praseodymium	6.773	Solid
60	Nd	Neodymium	7.007	Solid
61	Pm	Promethium	7.26	Solid
62	Sm	Samarium	7.52	Solid
63	Eu	Europium	5.243	Solid
64	Gd	Gadolinium	7.895	Solid
65	Tb	Terbium	8.229	Solid
66	Dy	Dysprosium	8.55	Solid
67	Ho	Holmium	8.795	Solid
68	Er	Erbium	9.066	Solid
69	Tm	Thulium	9.321	Solid
70	Yb	Ytterbium	6.965	Solid
71	Lu	Lutetium	9.84	Solid
72	Hf	Hafnium	13.31	Solid
73	Ta	Tantalum	16.654	Solid
74	W	Tungsten	19.25	Solid
75	Re	Rhenium	21.02	Solid
76	Os	Osmium	22.587	Solid
77	Ir	Iridium	22.56	Solid
78	Pt	Platinum	21.46	Solid
79	Au	Gold	19.282	Solid
80	Hg	Mercury	13.534	Liquid
81	Tl	Thallium	11.85	Solid
82	Pb	Lead	11.342	Solid
83	Bi	Bismuth	9.807	Solid
84	Po	Polonium	9.32	Solid
85	At	Astatine	6.35	Solid
86	Rn	Radon	0.00973	Gas
87	Fr	Francium	2.48	Solid
88	Ra	Radium	5.5	Solid
89	Ac	Actinium	10.07	Solid
90	Th	Thorium	11.72	Solid
91	Pa	Protactinium	15.37	Solid
92	U	Uranium	18.95	Solid
93	Np	Neptunium	20.45	Solid
94	Pu	Plutonium	19.84	Solid
95	Am	Americium	13.69	Solid
96	Cm	Curium	13.51	Solid
97	Bk	Berkelium	14.79	Solid
98	Cf	Californium	15.1	Solid
99	Es	Einsteinium	8.84	Solid
100	Fm	Fermium	—	Solid
101	Md	Mendelevium	—	Solid
102	No	Nobelium	—	Solid
103	Lr	Lawrencium	—	Solid
104	Rf	Rutherfordium	—	Solid
105	Db	Dubnium	—	Solid
106	Sg	Seaborgium	—	Solid
107	Bh	Bohrium	—	Solid
108	Hs	Hassium	—	Solid
109	Mt	Meitnerium	—	Solid
110	Ds	Darmstadtium	—	Solid
111	Rg	Roentgenium	—	Solid
112	Cn	Copernicium	—	Liquid
113	Nh	Nihonium	—	Solid
114	Fl	Flerovium	—	Solid
115	Mc	Moscovium	—	Solid
116	Lv	Livermorium	—	Solid
117	Ts	Tennessine	—	Solid
118	Og	Oganesson	—	Gas

Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and should not be considered professional expert advice. Consult a qualified professional before making decisions based on these calculations. See our full Disclaimer.