UK Gold Price Calculator
Use this tool to estimate the value of gold jewellery, coins, or bullion in GBP based on spot price, weight, and purity.
How this UK gold calculator works
If you have ever searched for a price of gold calculator UK, you probably wanted a fast answer to one question: “What is my gold actually worth right now?” This calculator gives you an estimate using the same core method used by traders, jewellers, and many bullion dealers.
The process is simple:
- Convert your item weight to pure gold weight (based on carat/purity).
- Convert pure gold weight into troy ounces.
- Multiply by spot price in GBP.
- Apply premium or discount, then VAT and fees if relevant.
Gold value = (Weight × Purity) ÷ 31.1034768 × Spot Price
Understanding UK gold pricing: grams, carats, and troy ounces
1) Weight units
In the UK, jewellery is often weighed in grams, while market pricing is usually quoted per troy ounce. One troy ounce is 31.1034768 grams. A regular ounce (avoirdupois) is different, so be careful not to mix them up.
2) Purity (carat)
Carat tells you how much of the item is pure gold. Common UK standards include:
- 24ct = 99.9% gold
- 22ct = 91.6% gold
- 18ct = 75.0% gold
- 9ct = 37.5% gold
So if you have 20g of 18ct gold, the pure gold content is 20 × 0.75 = 15g.
3) Spot price vs real-world price
The spot price is the live wholesale benchmark for raw gold. Real purchase/sale prices differ because of manufacturing costs, dealer margins, assay risk, and market conditions. That is why this calculator includes premium, VAT, and fees.
Example: quick calculation
Suppose you have a 15g 22ct item, with gold spot at £1,650/toz:
- Pure gold = 15 × 0.916 = 13.74g
- Pure troy ounces = 13.74 ÷ 31.1034768 = 0.4417 toz
- Melt value = 0.4417 × £1,650 = about £728.81
If a dealer offers 96% of melt value, that would be a 4% discount: around £699.66 before any fee deductions.
When to use this calculator
- Checking if a jewellery buy-back offer is fair.
- Estimating value of inherited gold items.
- Comparing bullion dealer prices in GBP.
- Planning purchases of coins and bars.
UK-specific points to remember
VAT
In many cases, UK investment-grade gold is VAT exempt, while jewellery is typically subject to VAT at sale. Tax treatment can vary by product and transaction type, so use the VAT field for estimates only and confirm with a dealer or adviser.
Hallmarks matter
UK hallmarks indicate metal fineness and help validate purity. If a piece is worn, damaged, or unmarked, a dealer may test and value it lower than expected.
Scrap gold payouts
Scrap buyers often pay below melt value to cover refining and operational costs. For this reason, the same item can receive very different quotes from different buyers.
Tips to get a better buy or sell price
- Get at least 3 quotes from different UK dealers.
- Know today’s spot price before negotiating.
- Separate items by purity (9ct, 18ct, 22ct, etc.).
- Weigh items accurately on a calibrated scale.
- Ask whether fees are included in the quoted payout.
Frequently asked questions
Is this a live gold price feed?
No. This tool calculates instantly using the spot price you enter. For best results, paste a current GBP spot quote from a trusted market source.
Can this calculator value gold coins?
Yes. Use the coin’s weight and purity. For collectible coins, numismatic value can exceed melt value significantly.
Is the result exact?
It is an estimate. Final prices can differ due to assay, spread, dealer policy, quantity, condition, and timing.
Disclaimer: This page is for educational estimation only and is not financial, tax, or legal advice.