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H2OCO2NaClNH3H2SO4CH4CaCO3NaOHHClKClO2N2H2C6H6C6H12O6Mg(OH)2Ca(OH)2HNO3H3PO4BaCl2Fe2O3CuSO4Al2O3ZnONa2CO3COO3NONO2N2OSO2SO3Cl2H2SHFHBrHIH2SO3H2CO3C2H4O2HCOOHKOHCaCl2MgCl2NaHCO3K2CO3Na2SO4K2SO4CaSO4AgNO3NaNO3KNO3C7H8CH3OHC2H6OC3H8OC3H6OC12H22O11C8H8C3H6O2C1H4C2H6C3H8C4H10C5H12C6H14C7H16C8H18C9H20C10H22C11H24C12H26C13H28C14H30C15H32C16H34C17H36C18H38C19H40C20H42C21H44C22H46C23H48C24H50C25H52C26H54C27H56C28H58C29H60C30H62C2H4C2H2C3H6C3H4C4H8C4H6C5H10C5H8C6H12C6H10
Accurate molar mass data for homework, exams & labs

Molar Mass Calculator

Enter a chemical formula or a compound name and get the molar mass in g/mol, with a clear element-by-element breakdown.

How to use this calculator

  • Enter a formula (H2O) or a compound name (for example water or oxygen).
  • While typing a name, matching compounds appear in a list under the field (scroll if the list is long). On phones and tablets, close it with the X or by choosing a compound. On desktop, it also closes when you click elsewhere on the page.
  • Press Calculate or choose a quick example.
  • Read the final answer in g/mol and element-by-element breakdown.
Quick examples:H2ONaClCO2H2SO4C2H6OC6H6

Enter a valid formula or compound name (for example H2SO4 or Ca(OH)2).