Free Gold Calculator UK
Estimate the melt value of your gold using UK pricing assumptions. Enter your item weight, carat, live gold spot price (GBP per troy ounce), and a dealer deduction.
What Is a Gold Calculator UK Tool?
A gold calculator UK helps you estimate what your jewellery, coins, or scrap gold might be worth in pounds sterling. It converts your item weight and purity into a “fine gold” amount, then applies the live market price and any buyer deduction.
This is useful before you:
- Sell old jewellery to a local high street gold buyer
- Compare online postal gold buyers
- Value inherited items before deciding what to do
- Check whether an offer is fair
How the Calculation Works
The calculator above uses the same core logic used by dealers and refiners:
- Step 1: Convert your weight into grams (if entered as troy ounces)
- Step 2: Convert carat to purity, using
carat ÷ 24 - Step 3: Calculate fine gold grams:
weight × purity - Step 4: Convert fine grams to troy ounces
- Step 5: Multiply by live spot price in GBP
- Step 6: Subtract dealer margin and any flat fee
The result is an estimated net payout, not a guaranteed quote.
UK-Specific Gold Selling Notes
1) Hallmarks matter
In the UK, hallmark stamps can help identify metal purity. Common marks include 375 (9K), 585 (14K), 750 (18K), 916 (22K), and 999 (24K). If your item is worn or unclear, a buyer may test it before final pricing.
2) Spot price is not your payout price
The live spot price reflects wholesale market value for pure gold. Retail buyers need margin for testing, refining, overhead, and market risk. This is why offers are usually below spot value.
3) Item condition can still affect offers
If a piece has resale value as jewellery (designer, antique, branded), it may be worth more than melt value. Melt-only buyers ignore craftsmanship and gemstones, while jewellery resellers might pay more.
4) Use the right ounce
Gold is priced in troy ounces (31.1035g), not regular/avoirdupois ounces (28.3495g). Confusing these can create large valuation errors.
Example Gold Value Scenarios
Example A: 18K chain
- Weight: 20g
- Purity: 18K (75%)
- Spot: £1,650/ozt
- Deduction: 10%
Fine gold = 15g. Fine troy ounces = 15 / 31.1035 = 0.4823 ozt. Gross melt value ≈ £795.80. After 10% deduction, estimated payout ≈ £716.22.
Example B: 9K mixed scrap
- Weight: 48g
- Purity: 9K (37.5%)
- Spot: £1,650/ozt
- Deduction: 15%
- Fee: £8
Fine gold = 18g. Fine troy ounces ≈ 0.5787. Gross melt value ≈ £954.86. Net after deduction and fee ≈ £803.63.
How to Get a Better Price in the UK
- Compare at least 3 offers: local jeweller, pawn shop, and online postal buyer
- Know your carat and weight first: avoid blind negotiations
- Separate by purity: 9K and 18K mixed together can reduce clarity in valuation
- Ask for the payout percentage: request transparency against spot
- Check fees: postage, processing, and return fees can change your net result
- Review customer protections: insured shipping and return policies are important
Common Questions
Is this calculator accurate?
It is accurate for estimation when your inputs are correct. Actual buy quotes vary by dealer policy, testing outcomes, and current market movement.
Do gemstones add value?
Some buyers remove stones and pay only for metal. Others may offer extra value for certain stones or branded pieces. Always ask before accepting a melt-only offer.
Do I pay VAT when selling gold in the UK?
Private sales of scrap jewellery are usually handled differently from buying investment products. Tax treatment can depend on your situation and product type, so check HMRC guidance or a tax professional for certainty.
Can I use this for coins and bars?
Yes. Use total weight and purity. For investment coins and bars, market premiums and collector demand may mean value above melt price.
Final Thought
A good gold calculator UK gives you leverage. Instead of accepting the first offer, you walk in with a data-backed range. Use the tool, compare quotes, and focus on net payout after all deductions and fees.