Convert kJ/g to kJ/mol or kJ/mol to kJ/g using a molar mass you enter or pick from common substances, with J, cal, kcal and kJ/kg units too.

Presets are approximate. Confirm isotope/composition basis; editing this value overrides the preset.

Optional settings

kJ/g to kJ/mol Conversion Formula

The following formula is used to convert the energy content from kJ/g to kJ/mol.

Emol = Eg × M

Variables:

  • Emol is the energy per mole (kJ/mol)
  • Eg is the energy per gram (kJ/g)
  • M is the molar mass of the substance (g/mol)

To convert the energy content from kJ/g to kJ/mol, multiply the energy per gram by the molar mass of the substance.

kJ/g to kJ/mol Conversion Table (Assuming molar mass M = 18.01528 g/mol, H2O)
Energy (kJ/g) Energy (kJ/mol)
0.11.802
0.59.008
118.015
236.031
590.076
10180.153
15270.229
17306.260
20360.306
25450.382
30540.458
35630.535
37666.565
40720.611
45810.688
46828.703
50900.764
601080.917
751351.146
1001801.528
*Assumes molar mass M = 18.01528 g/mol (water). Relation: kJ/mol = (kJ/g) × M (g/mol).

How to Use the kJ/g to kJ/mol Calculator?

The following steps outline how to use the kJ/g to kJ/mol Calculator.

  1. First, select Energy per mole and enter the energy per gram with its unit; select Energy per gram for the reverse conversion.
  2. Next, enter the molar mass (M) of the same substance in g/mol, or choose and verify an approximate preset.
  3. Use the formula Emol = Eg times M to calculate the energy per mole.
  4. Finally, select the result unit and Calculate. The forward relation multiplies by M; the reverse relation divides by M. cal and kcal mean thermochemical calories.
  5. After inserting the variables 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.

Energy per gram (Eg) = 25 kJ/g

Molar mass (M) = 58.44 g/mol