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Molecular Weight Calculator

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Molecular Weight Calculator

Please enter the chemical formula of a compound to determine its molar mass and elemental composition

Total Molecular Weight: g/mol

Tip:The chemical formula is case-sensitive. For example, C23H34O5 c23h34o5

Instructions for Calculating Molar Mass (Molecular Weight) of a Chemical Compound:
To calculate the molar mass of a chemical compound, enter the chemical formula and click 'Calculate.'

Definitions of Molecular Mass, Molecular Weight, Molar Mass, and Molar Weight:
Molecular Mass (Molecular Weight): The molecular mass, also referred to as molecular weight, is the mass of a single molecule of a substance. It is expressed in unified atomic mass units (u), where 1 u is equivalent to 1/12th the mass of a carbon-12 atom.

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The MuseChem molarity calculator is based on the following equation:

Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)

Mass Concentration Volume Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The MuseChem dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( )

  • C1
    V1
    C2
    V2

When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

Serial Dilutions

Computed Result

C1=C0/X C1: LOG(C1):
C2=C1/X C2: LOG(C2):
C3=C2/X C3: LOG(C3):
C4=C3/X C4: LOG(C4):
C5=C4/X C5: LOG(C5):
C6=C5/X C6: LOG(C6):
C7=C6/X C7: LOG(C7):
C8=C7/X C8: LOG(C8):