Karat → % ouro puro
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
% puro = kt × 4.166666666666667
About this calculator
The karat to % gold purity converter is a useful tool for calculating the purity of gold in different karats. With this calculator, you can easily convert a given amount of gold to its equivalent in % purity.
The calculation formula is simple: % purity = karat × 4.166666666666667. Just enter the value in karat and the result will be displayed in % purity.
This calculator is especially useful for investors, jewelers and gold collectors, who need to know the purity of their investment or the items they are buying or selling.
Remember that gold purity is crucial for evaluating its value and quality. Also, consider common precautions, such as the authenticity of the product and its origin.
If you have any questions about gold purity or how to use this calculator, refer to the FAQ below.
Frequently asked questions
How do I use this calculator?
Just enter the value in karat and the result will be displayed in % purity. The calculation formula is simple: % purity = karat × 4.166666666666667.
What is karat and how is it related to gold purity?
Karat is a measure of gold purity, where 24 karat is equal to 100% purity. The lower the number of karat, the lower the purity of gold.
Why should I consider the authenticity of the product?
Product authenticity is crucial to ensure that you are buying or selling a genuine product, without any falsifications or adulterations.
What are the common precautions when dealing with gold?
In addition to product authenticity, it is essential to consider safety when handling gold, such as avoiding exposure to chemicals or other risks.
Can I use this calculator for any type of gold?
Yes, this calculator can be used for any type of gold, as long as you know the amount in karat and wish to calculate the purity in %.