How the 16k gold calculator in gbp works
The 16k gold calculator in gbp multiplies the weight you enter by the purity of the metal and by the live gold spot price per gram, then converts the result into your chosen currency. Because the spot price is updated about every minute, the result always reflects the current market rather than yesterday's newspaper quote.
Formula
Value = (spot price per troy ounce ÷ 31.1035) × weight in grams × purity × exchange rate. Non-gram units are converted first: one troy ounce is 31.1035 g, one tola 11.6638 g and one tael 37.429 g.
When to use it
- Before selling jewelry, coins or bars, to know the melt value and judge whether an offer is fair.
- Before buying, to see how much premium a dealer adds above the metal content.
- To compare purities, for example how much more 18k is worth than 14k for the same weight.
Tips for accurate results
- Use grams and weigh on a precise scale; rounding a 7.4 g ring to 7 g can understate value by over 5%.
- Check the hallmark rather than guessing purity from color.
- Remember that prices exclude VAT, making charges and dealer margins.
Prices: MetalflowAPI. Read our methodology.