gold-price-calculator
Calculate the value of gold by weight. Grams, ounces, and troy ounces.
Gold Price: $4551/troy oz
Price as of March 2026. Update manually based on current market rates.
Formula
Gold Value = Weight (in troy oz) × Purity % × Price per troy oz
Frequently Asked Questions
What is the difference between purity levels?
24K gold is pure gold (100%), 22K is 91.67% gold, 18K is 75% gold, and 14K is 58.33% gold. The remaining percentage is other metals like copper or silver.
What is the difference between ounces and troy ounces?
A troy ounce (used for precious metals) equals 31.1035 grams, while an avoirdupois ounce (common ounce) equals 28.3495 grams. Always use troy ounces for gold pricing.
Why does gold purity matter?
Gold purity determines the actual amount of gold in an item. Lower purity items contain less pure gold, so they are worth less despite having the same weight.