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Precious Metal Calculator

Live gold, silver & platinum prices. Calculate values for every karat and purity level.

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Gold (XAU)
$
Per gram: $0.00
Platinum (XPT)
$
Per gram: $0.00
Silver (XAG)
$
Per gram: $0.00
Weight
Updated: —
Gold by Karat
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Platinum
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Silver
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How to Use the Calculator

Our free precious metal calculator determines the melt value of gold, silver, and platinum based on current market prices. Whether you're buying jewelry, selling scrap gold, or simply curious about today's metal values, this tool provides instant, accurate calculations.

  1. Check market prices — Live spot prices load automatically. Override with your own values at any time.
  2. Enter the weight — Type the weight in grams, troy ounces, pennyweight, or kilograms.
  3. Read the results — Instantly see the value for every karat and purity level.

Understanding Gold Karats

Gold purity is measured in karats (K). Pure gold is 24K. Lower karat values indicate gold alloyed with other metals for durability:

  • 24K — 99.9% pure, softest and most valuable per gram
  • 22K — 91.7% pure, popular for fine jewelry and coins
  • 18K — 75.0% pure, the standard for luxury jewelry worldwide
  • 14K — 58.3% pure, the most popular choice for everyday jewelry in the US
  • 10K — 41.7% pure, the minimum karat sold as gold in the US

Why Metal Prices Matter for Jewelry

The price of precious metals directly affects the cost of fine jewelry. At 25karats, we use real-time metal pricing to offer competitive prices on wedding bands, engagement rings, and custom jewelry.

  • Factory-direct pricing — no retail markup
  • Prices reflect current metal market rates
  • Free shipping on all orders
  • Lifetime warranty included
Shop Wedding Bands

Conversion Reference

1 Troy Ounce= 31.1035 g
1 Pennyweight= 1.55517 g
1 Kilogram= 32.1507 ozt
1 Troy Ounce= 20 dwt

Frequently Asked Questions

The gold price per gram is calculated by dividing the spot price per troy ounce by 31.1035 (grams per troy ounce) to get the 24K price per gram. For other karats, multiply by the purity fraction: 22K = 22/24, 18K = 18/24, 14K = 14/24, and 10K = 10/24. For example, if gold is $2,650/oz, the 14K price per gram would be ($2,650 ÷ 31.1035) × (14/24) = ~$49.70/gram.

Our calculator fetches live spot prices from market data providers. Prices are refreshed multiple times per day to ensure accuracy while keeping page loads fast. You can click "Refresh Prices" at any time, or manually enter the exact price you want to calculate with.

A troy ounce (31.1035 grams) is heavier than a standard avoirdupois ounce (28.3495 grams). Precious metals are always quoted in troy ounces. This calculator uses troy ounces for all conversions.

14K gold offers the best balance of purity, durability, and value. At 58.3% pure gold, it's hard enough for everyday wear while maintaining a beautiful gold color. It's significantly more affordable than 18K or 22K while still being a high-quality precious metal. Most wedding bands and engagement rings in the US are made in 14K gold.

Yes. Enter the current spot price (or your dealer's buy price) and the weight of your scrap metal. The calculator will show the melt value for each karat. Keep in mind that dealers typically pay 70–90% of melt value for scrap gold, depending on quantity and purity.

24 karats is the purest gold there is — but we believe you deserve even more. The extra karat stands for everything beyond the metal itself: our dedication to exceptional customer service, handcrafted quality, factory-direct pricing, and a lifetime warranty on every piece. 24K of pure gold + 1K of pure commitment = 25karats. It's our promise that when you shop with us, you're getting something more valuable than gold alone. Learn more about our story.