Scrap Gold Calculator

Mar 18, 2026

How to Calculate Scrap Gold Value

A step-by-step guide to estimating scrap gold value by weight, karat purity, and payout percentage.

Scrap gold value depends on weight, purity, and the payout percentage offered by a buyer. This guide breaks down the steps so you can estimate value quickly and compare offers.

Step 1: Weigh your gold

Use a scale that measures grams or troy ounces. Most calculators use grams, so convert ounces to grams when needed.

Step 2: Identify the karat

Karat shows how much pure gold is in your item. Higher karat means higher purity and higher value per gram.

Step 3: Apply spot price and payout

Start with the current gold price per gram, multiply by the karat purity, then apply the payout percentage (typically 80% to 95%).

Example formula

Spot Value = weightInGrams × pricePerGram × purity
Estimated Scrap Value = Spot Value × payoutPercentage

For a fast estimate, use the Scrap Gold Calculator and adjust the payout slider. You can also review the latest scrap gold price per gram before you compare offers.

Estimate your scrap gold value

Use the calculator to adjust weight, karat, and payout percentage instantly.

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