Gold Price by Weight Calculator

Enter the spot price per troy ounce and your gold weight to instantly calculate the melt value at any karat purity.

Gold Details

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Enter a spot price and weight to calculate the gold value.

Summary

Enter the spot price per troy ounce and your gold weight to instantly calculate the melt value at any karat purity.

How it works

  1. Enter the current gold spot price per troy ounce in the Spot Price field.
  2. Type the weight of your gold in the Weight field.
  3. Select the weight unit: grams, troy ounces, pennyweights, or tolas.
  4. Choose the karat purity of your gold (24K = 100% pure, 18K = 75% pure, etc.).
  5. Read the calculated melt value, pure gold weight, and a full unit breakdown in the results panel.
  6. Optionally apply a dealer markup or discount percentage to estimate buy/sell prices.

Use cases

  • Estimating the scrap value of old jewelry before selling.
  • Comparing dealer offers against the current spot price.
  • Calculating how much raw gold bullion is worth at a given karat.
  • Converting gold weight between grams, troy ounces, and pennyweights.
  • Planning a gold purchase and verifying the per-gram cost against spot.
  • Tracking portfolio value when you hold physical gold in different purity levels.
  • Helping jewelers price castings and findings based on live market prices.
  • Teaching students about precious-metal pricing and purity concepts.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu