Gold Karat Guide

Calculators

Twelve tools on one live gold price, grouped by what you are trying to do. Every result can be shared by link and shown in your currency.

Selling gold

What a piece is worth melted and what a buyer will pay

Price per gramMelt value by karat at today's spot price

Scrap payoutA mixed lot: melt value and what buyers actually pay

Check an offerAny buyer's quote as a share of melt value

Karat to percentPurity, fineness and grams of pure gold

Weight unitsGrams, pennyweight and troy ounces, priced

Real or fake

Stamps, hallmarks and tests that prove something

Stamp decoderWhat 417, 585, 750, GF or GP mean

Fit and size

Rings, chains, bracelets and gauges that fit the first time

Ring sizeUS, UK, EU and millimeters, both ways

Chain lengthWhich length sits where on you

Chain weightGrams and value by style, width and length

Chain widthMillimeters drawn to scale next to a quarter

Bracelet sizeWrist measurement to bracelet length

Earring gaugeGauge to millimeters and the next size up

Looking for the explanations behind the numbers? All guides, grouped the same way.