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Gram to Luong (cay)
Converts gram to luong (cay) with the exact defined factor. One gram is 0.0266667 luong (cay).
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In short
One gram is 0.0266667 luong (cay), so to convert gram to luong (cay) you multiply by 0.0266667, and to go back you multiply luong (cay) by 37.5. 2 gram is 0.0533333 luong (cay), 5 is 0.133333 and 10 is 0.266667. A cay is 37.5 grams exactly, ten chi. It is very close to the Hong Kong tael at 37.799 g but not the same, and the 0.3 g gap is real money at gold prices, so a Vietnamese cay price and a Hong Kong tael price are not directly comparable. The luong (cay) is used in Vietnam, where the cay — also called luong or Vietnamese tael — is the standard gold unit.
How to use the Gram to Luong (cay)
- Type the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The converted value and the exact conversion factor are shown instantly.
About the Gram to Luong (cay)
A cay is 37.5 grams exactly, ten chi. It is very close to the Hong Kong tael at 37.799 g but not the same, and the 0.3 g gap is real money at gold prices, so a Vietnamese cay price and a Hong Kong tael price are not directly comparable.
What people use it for
- Reading a listing or a document quoted in gram.
- Checking a figure someone else converted.
- Getting the exact factor to reuse in a spreadsheet.
Details
| 1 Gram | 0.0266667 Luong (cay) |
|---|---|
| 1 Luong (cay) | 37.5 Gram |
| Definition | 1 cay (luong) = 37.5 g = 10 chi. The Hong Kong tael is 37.799 g, slightly heavier. |
| Used in | Vietnam, where the cay — also called luong or Vietnamese tael — is the standard gold unit |
| Conversion type | Exact multiplication — both units are defined against the Kilogram |
The maths behind it
This tool uses luong (cay) = gram × 0.0266667, an exact defined factor with no offset. Every intermediate value is shown on screen, so the result can be checked by hand.
1 cay (luong) = 37.5 g = 10 chi. The Hong Kong tael is 37.799 g, slightly heavier.
Frequently asked questions
Is a Vietnamese cay the same as a Hong Kong tael?
Almost, and not quite: 37.5 g against 37.799 g. The names are often translated interchangeably as "tael", which is exactly why the difference is worth checking before comparing two gold prices.
What is the exact factor?
One gram is 0.0266667 luong (cay), and one luong (cay) is 37.5 gram. It is a defined value rather than a measurement, so it does not change and the conversion is exact in both directions.
Are there any usage caps on the Gram to Luong (cay)?
There is no cost and no cap. The Gram to Luong (cay) is not a demo of a paid product, so nothing is held back or watermarked.
Can you see what I put into this page?
No. The Gram to Luong (cay) runs entirely in your browser using JavaScript. Your input never reaches inputtesthub.com or any third party — open your browser's Network tab while you use it and you will see no request go out.
What formula does the Gram to Luong (cay) use?
It uses luong (cay) = gram × 0.0266667, an exact defined factor with no offset. The full working is printed under the result, so you can follow every step rather than trusting a black box.
Give me a worked example.
Enter 10 gram and the Gram to Luong (cay) returns 0.266667 luong (cay).
When would I actually need the Gram to Luong (cay)?
Typical uses: reading a listing or a document quoted in gram. Checking a figure someone else converted. Getting the exact factor to reuse in a spreadsheet. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Is there anything to watch out for?
1 cay (luong) = 37.5 g = 10 chi. The Hong Kong tael is 37.799 g, slightly heavier.
Which values should I know?
1 Gram is 0.0266667 Luong (cay). 1 Luong (cay) is 37.5 Gram. Definition is 1 cay (luong) = 37.5 g = 10 chi. The Hong Kong tael is 37.799 g, slightly heavier.. These are printed on the page itself, so you do not have to take them on trust.
How precise is the result?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
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