Bullion Premium Calculator
Calculate the quoted and all-in premium of a gold or silver bullion purchase over its entered fine-metal value. Product price, costs and spot reference remain separate so the percentage is auditable.
Enter the product, metal value and purchase costs
Enter fine troy ounces—not gross product weight—and the total product price for all items. Add only acquisition costs that are not already inside that price.
Entered bullion premium
Entered Bullion Costs 1.0.0
| Calculation step | Entered arithmetic | Derived result |
|---|
How a bullion premium is calculated
Quoted premium = total product price − entered metal value
Quoted premium % = quoted premium ÷ entered metal value × 100
All-in premium = product price + purchase costs − entered metal value
The Royal Mint describes a bullion premium as the amount charged above the underlying precious-metal value and gives the same percentage structure used here: subtract metal value from product price, then divide by metal value. There is no universal premium because fabrication, quantity, market conditions and dealer pricing vary.
Fine-metal quantity is the denominator’s foundation. If a product contains one gross troy ounce at less than 100% fineness, entering one fine ounce would overstate metal content. Use stated fine weight when available, or calculate fine troy ounces with the melt-value calculator before comparing price.
Quoted premium uses only total product price. All-in premium adds the entered acquisition costs—for example, shipping or a separately stated transaction charge. Do not enter a charge twice. Negative premiums remain visible because a product price can be entered below the selected spot reference; that output is not proof that the offer is genuine or executable.
How to compare bullion premiums consistently
Use one timestamp, currency and definition of fine-metal content across every offer so that the comparison is not distorted by mismatched inputs.
- Confirm fine troy ounces per item and item count; keep gross weight and fine weight distinct.
- Record a spot reference in the same currency and from the same observation window used for each comparison.
- Enter the total product price for all items before separately entered shipping, insurance or transaction costs.
- Check whether tax is included in the displayed product price and handle it consistently under your jurisdiction.
- Compare both premium amount and percentage; a smaller item can have a high percentage but a modest monetary premium.
- Save the dealer, product, quantity, payment method and observation time because premiums and availability can change.
Worked example from the audited fixture
How to interpret the result
The 7.5% fixture result compares one entered offer with one entered spot reference. It does not label the offer cheap or expensive. Compare like-for-like product, quantity, availability, payment method, delivery, authenticity and dealer terms before making any decision.
Melt value, premium and break-even answer different questions
These calculators share one deterministic bullion-cost engine, but their denominators and decisions are different. Melt value starts from gross weight and fineness. Premium starts from known fine ounces and compares acquisition price with entered metal value. Break-even carries fine ounces and every entered round-trip cost into a future spot-reference equation.
| Bullion tool | Question answered | Required evidence | Primary output | Does not answer |
|---|---|---|---|---|
| Melt Value | What is the entered fine-metal reference? | Gross weight, unit, fineness, spot input | Entered metal-content value | Dealer cash bid or appraisal |
| Premium | How far is this acquisition price above or below metal value? | Fine ounces, spot input, product price and costs | Quoted and all-in premium | Whether the offer is fair |
| Break-Even | What future spot reference balances entered round-trip costs? | Fine ounces, outlay, holding, sale costs and discount | Modeled break-even spot | Whether or when price will reach it |
Use one currency throughout. If fine troy ounces are not known, calculate them from gross weight and fineness first. A label or certificate is input evidence, not verification by this website.
Assumptions and limits
- Every price and cost is manually entered; the page retrieves no live market or dealer data.
- Fine-metal weight, authenticity, condition, delivery, availability and dealer solvency are not verified.
- The currency code changes labels only and does not convert currencies.
- Tax, storage, financing, opportunity cost and selling costs are excluded unless already represented in an entered amount.
- The calculator does not define a normal, fair, low, high or acceptable premium.
- The result is not an offer validation, appraisal, forecast, recommendation or financial advice.
Where to verify the inputs
Check the product’s specification or certificate for metal, gross weight, fine weight and fineness. Distinguish troy ounces from ordinary ounces and verify whether a quoted “one-ounce” product means one gross or one fine troy ounce. When in doubt, obtain an independent assay or professional appraisal rather than inferring authenticity from a listing.
For price comparisons, record source, observation time, currency, product, quantity and payment method. Dealer product prices and buy-back terms can move independently of a spot reference. Ask whether shipping, insurance, card surcharge, tax, storage, assay, refining or selling charges are included, and enter each cost only once.
The U.S. Commodity Futures Trading Commission advises physical-metals buyers to compare weight and price with spot and to account for dealer spreads and additional charges. It also notes that dealers normally sell above spot and buy below spot. Those are reasons to keep the product price, entered spot reference, separate costs and buy-back discount visible instead of compressing them into a single unexplained percentage.
Frequently asked questions
- Subtract entered fine-metal value from total product price. Divide that difference by fine-metal value and multiply by 100 for the quoted premium percentage.
- It adds separately entered purchase costs to product price before comparing total acquisition cost with entered fine-metal value.
- Enter fine troy ounces per item. If only gross weight and fineness are known, calculate fine ounces first rather than treating gross weight as pure metal.
- Yes under the entered comparison when product price is below the selected metal-value reference. That does not verify authenticity, availability or executability.
- Enter acquisition costs not already included in product price, such as verified shipping or transaction charges, and avoid double-counting.
- This calculator does not set a normal or fair threshold. Premiums vary by product, quantity, fabrication, dealer, payment method and market conditions.
- Only if tax is already inside an entered product-price or purchase-cost amount. The page does not apply jurisdiction-specific tax rules.
- No. Product authenticity, dealer reliability, delivery, liquidity, buy-back terms and suitability are not evaluated.
Sources and methodology
- LBMA — OTC Guide annexes — Defines one troy ounce as 31.1034768 grams and describes gold and silver price quotation per troy ounce.
- The Royal Mint — What are bullion premiums? — Primary producer explanation of premium amount and percentage over fine-metal value.
- CFTC — Ten things to ask before buying physical metals — Regulator guidance on spot comparison, dealer spread, weight and additional costs.
- United States Mint — Authorized bullion purchaser terms — Primary-source examples showing that bullion product premiums may be percentage-based or fixed.
The operational contract is Entered Bullion Costs version 1.0.0. Independent fixtures cover troy-ounce and gram conversions, fineness, negative premiums, zero optional costs, buy-back discounts, optional reference prices and algebraic break-even reconciliation. Sources support units and method boundaries; they do not endorse this website or any output.
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Physical bullion and leveraged XAU/USD or XAG/USD trading are not interchangeable. If you compare broker products, verify contract size, tick size, margin, spread, commission, financing and execution terms for the exact account and jurisdiction. Do not transfer a physical-bullion premium or buy-back assumption into a CFD calculation.
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