Convert grams to atomic mass units
Grams to atomic mass units. Enter a value to convert, or use the grams to atomic mass units chart further down the page.
1 gram equals 6.022140762e23 atomic mass units. Going the other way, 1 atomic mass unit = 1.660539067e-24 grams.
How to convert grams to atomic mass units
To convert grams to atomic mass units, multiply the gram value by 6.022140762e23. You can also divide by 1.660539067e-24 to get the same answer.
u = g × 6.022140762e23
Worked example
Convert 15 g to atomic mass units:
15 g = 9.033211143e24 u
grams to atomic mass units conversion chart
Use this grams to atomic mass units table for quick reference without typing anything.
| grams (g) | atomic mass units (u) |
|---|---|
| 0.01 g | 6.022140762e21 u |
| 0.1 g | 6.022140762e22 u |
| 1 g | 6.022140762e23 u |
| 2 g | 1.204428152e24 u |
| 3 g | 1.806642229e24 u |
| 5 g | 3.011070381e24 u |
| 10 g | 6.022140762e24 u |
| 20 g | 1.204428152e25 u |
| 50 g | 3.011070381e25 u |
| 100 g | 6.022140762e25 u |
| 1,000 g | 6.022140762e26 u |
What is a gram?
The gram is one thousandth of a kilogram. It is the practical unit of cooking, nutrition labels and postal weights in metric countries.
What is an atomic mass unit?
The atomic mass unit (u) is a unit of weight equal to 1.660539067e-27 kilograms.
Frequently asked questions
How many atomic mass units are in a gram?
1 grams equals 6.022140762e23 atomic mass units. Going the other way, 1 atomic mass units is 1.660539067e-24 grams.
How do you convert grams to atomic mass units?
To convert grams to atomic mass units, multiply the gram value by 6.022140762e23. You can also divide by 1.660539067e-24 to get the same answer.
What is 10 grams in atomic mass units?
10 grams equals 6.022140762e24 atomic mass units. The conversion chart on this page lists the other values people look up most often.
Related weight conversions
Convert grams to other units
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Convert other units to atomic mass units
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