Use the calculator below to (1) calculate molar mass (g/mol) from a sample’s mass and moles, (2) convert directly between atomic/molecular mass in amu (Da) and molar mass in g/mol (numerically equal), or (3) compute molar mass from a chemical formula.
Convert Amu To G/Mol Formula
M\,(g/mol)=m\,(amu)
Variables:
- G/mol is the molar mass (grams per mole)
- amu is the atomic/molecular mass in atomic mass units (Da)
- For this conversion, the numerical value is the same: a value in amu corresponds to the same value in g/mol.
To convert an atomic/molecular mass from amu (Da) to g/mol, use the same numerical value (e.g., 18.015 amu corresponds to 18.015 g/mol).
| Atomic mass (amu) | Molar mass (g/mol) |
|---|---|
| 1.000 | 1.000 |
| 12.011 | 12.011 |
| 14.007 | 14.007 |
| 15.999 | 15.999 |
| 18.998 | 18.998 |
| 20.180 | 20.180 |
| 22.990 | 22.990 |
| 24.305 | 24.305 |
| 28.085 | 28.085 |
| 30.974 | 30.974 |
| 31.998 | 31.998 |
| 32.060 | 32.060 |
| 35.450 | 35.450 |
| 39.948 | 39.948 |
| 40.078 | 40.078 |
| 44.010 | 44.010 |
| 55.845 | 55.845 |
| 63.546 | 63.546 |
| 79.904 | 79.904 |
| 196.967 | 196.967 |
| Numerical equivalence used: a value in amu (per particle) corresponds to the same value in g/mol (per mole of particles). Values shown reflect common atomic/molecular masses. | |
How to Convert Amu To G/Mol?
The following steps outline how to Convert Amu To G/Mol.
- First, determine the atomic or molecular mass in amu (Da).
- Next, note that atomic/molecular mass in amu and molar mass in g/mol are numerically equivalent.
- Next, gather the formula from above = M (g/mol) = m (amu).
- Finally, write the same numerical value with units of g/mol.
- After inserting the value and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
atomic/molecular mass = 128 amu
molar mass = 128 g/mol
FAQs
What is AMU in chemistry?
AMU stands for Atomic Mass Unit. It is a standard unit of mass that quantifies mass on an atomic or molecular scale. 1 AMU is defined as one-twelfth the mass of a carbon-12 atom.
Why do we convert AMU to G/Mol?
Converting AMU to G/Mol helps in expressing the mass of a substance in a form that’s easier to understand and work with in laboratory settings. It allows chemists to relate atomic/molecular masses to macroscopic quantities of material typically used in chemical reactions.
How does the number of moles affect the G/Mol calculation?
The molar mass (g/mol) is a property of the substance and does not depend on how many moles you have. The number of moles only matters when calculating a sample’s total mass (grams = g/mol × mol) or the amount of substance (mol = grams ÷ (g/mol)).
Can I use the G/Mol to Grams calculator for any chemical substance?
Yes. The G/Mol to Grams calculator can be used for any chemical substance as long as you know its molar mass (g/mol) and the number of moles (mol). It converts using grams = (g/mol) × mol.
