# Gold Weight Calculation

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**Formula:**`Gold Weight = mass × (purity / 100)`

## Introduction to Gold Weight Calculator

The weight of gold, in terms of pure gold content, is calculated by taking the total mass of an item and multiplying it by its purity percentage. The ** mass**is given in any unit of weight (e.g., grams, ounces), and

**is expressed as a percentage representing the proportion of pure gold in the item. This is useful in the jewelry industry, finance, and among collectors to establish the value of gold items.**

*purity*## Parameter usage:

`mass`

= total mass of the gold item`purity`

= percentage of pure gold in the item

## Example valid values:

`mass`

= 50 grams`purity`

= 24K (99.9% purity)

## Output:

`gold weight`

= weight of pure gold in the item

## Data validation

Ensures mass is greater than zero and purity is within 1% to 100% range.

## Summary

This calculator determines the true weight of gold in a piece by considering its total weight and gold purity percentage.

Tags: Gold, Weight, Purity, Calculation