Gold Purity Calculator
đ Understanding Gold Purity
Convert between karat ratings, percentage purity, and fineness systems. Understand exactly how pure your gold is and what that means for its value.
24K
Pure Gold
18K
Fine Jewelry
14K
Common Jewelry
10K
Minimum US Standard
Gold Purity Reference Chart
đĄ Key Facts
- 24K is theoretically pure, but 99.9% is practical maximum
- Higher karat = more expensive but softer metal
- Lower karat = more durable but less valuable
- 10K is minimum standard for "gold" in the US
đ Testing Methods
- Electronic gold tester (most accurate)
- Acid testing (traditional method)
- Magnet test (eliminates non-gold metals)
- Professional XRF analysis (laboratory grade)