Molecular Weight Calculator

Built-in atomic weights. Names and symbols of the elements.

 
 

Molecular weight calculation is mobile-device-friendly as of February 16, 2015

Enter the number of moles of each element and click Calculate. Fractional moles (e.g. 2.57) and negative values can be entered. Atomic weights are from CRC (1999)

Molecular Weight (gram/mole): 
© 2015 LMNO Engineering,  Research, and Software, Ltd. www.LMNOeng.com
  Ac Ag Al Am Ar As At Au B
Ba Be Bh Bi Bk Br C Ca Cd Ce
Cf Cl Cm Co Cr Cs Cu Db Dy Er
Es Eu F Fe Fm Fr Ga Gd Ge H
He Hf Hg Ho Hs I In Ir K Kr
La Li Lr Lu Md Mg Mn Mo Mt N
Na Nb Nd Ne Ni No Np O Os P
Pa Pb Pd Pm Po Pr Pt Pu Ra Rb
Re Rf Rh Rn Ru S Sb Sc Se Sg
Si Sm Sn Sr Ta Tb Tc Te Th Ti
Tl Tm U V W Xe Y Yb Zn Zr

Element names and symbols (sorted by name):

 
Actinium
Aluminum
Americium
Antimony
Argon
Arsenic
Astatine
Barium
Berkelium
Beryllium
Bismuth
Bohrium
Boron
Bromine
Cadmium
Calcium
Californium
Carbon
Cerium
Cesium
Chlorine
Chromium
Cobalt
Copper
Curium
Dubnium
Dysprosium
Einsteinium
Erbium
Europium
Fermium
Fluorine
Francium
Gadolinium
Gallium
Germanium
Gold
 
Ac
Al
Am
Sb
Ar
As
At
Ba
Bk
Be
Bi
Bh
B
Br
Cd
Ca
Cf
C
Ce
Cs
Cl
Cr
Co
Cu
Cm
Db
Dy
Es
Er
Eu
Fm
F
Fr
Gd
Ga
Ge
Au
Hafnium
Hassium
Helium
Holmium
Hydrogen
Indium
Iodine
Iridium
Iron
Krypton
Lanthanum
Lawrencium
Lead
Lithium
Lutetium
Magnesium
Manganese
Meitnerium
Mendelevium
Mercury
Molybdenum
Neodymium
Neon
Neptunium
Nickel
Niobium
Nitrogen
Nobelium
Osmium
Oxygen
Palladium
Phosphorous
Platinum
Plutonium
Polonium
Potassium
Hf
Hs
He
Ho
H
In
I
Ir
Fe
Kr
La
Lr
Pb
Li
Lu
Mg
Mn
Mt
Md
Hg
Mo
Nd
Ne
Np
Ni
Nb
N
No
Os
O
Pd
P
Pt
Pu
Po
K
Praseodymium
Promethium
Protactinium
Radium
Radon
Rhenium
Rhodium
Rubidium
Ruthenium
Rutherfordium
Samarium
Scandium
Seaborgium
Selenium
Silicon
Silver
Sodium
Strontium
Sulfur
Tantalum
Technetium
Tellurium
Terbium
Thallium
Thorium
Thulium
Tin
Titanium
Tungsten
Uranium
Vanadium
Xenon
Ytterbium
Yttrium
Zinc
Zirconium
Pr
Pm
Pa
Ra
Rn
Re
Rh
Rb
Ru
Rf
Sm
Sc
Sg
Se
Si
Ag
Na
Sr
S
Ta
Tc
Te
Tb
Tl
Th
Tm
Sn
Ti
W
U
V
Xe
Yb
Y
Zn
Zr

 

Reference for Molecular Weight Calculator                     To top of page
Chemical Rubber Company (CRC). 1999. CRC Handbook of Chemistry and Physics. Lide, David R., editor. 79th edition (1998-1999). CRC Press, Inc.

 

© 1999-2015 LMNO Engineering, Research, and Software, Ltd.  All rights reserved.

Please contact us for consulting or other questions.

LMNO Engineering, Research, and Software, Ltd.
7860 Angel Ridge Rd.   Athens, Ohio 45701  USA   Phone and fax: (740) 592-1890
LMNO@LMNOeng.com    http://www.LMNOeng.com

 

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