THE SHORT ANSWER
Value the fine gold first, then price the product and exit
A gold bar's melt value equals its fine-gold troy ounces × the gold price per fine troy ounce. Its purchase price can be higher because of fabrication, assay, distribution and dealer costs. Its resale value can be lower because the buyer quotes a bid, not the retail ask. The live table keeps those three values separate and never treats a modeled premium or payout as an executable quote.
Fourteen comparable fine-gold reference weights.
Actual Good Delivery weight replaces the “400 oz” nickname.
Provider, freshness and observation time stay visible.
See acquisition, modeled exit and conditional break-even together.
LIVE GOLD BAR VALUE TABLE
Compare cash value across metric and troy-ounce weights
Choose a currency and test one consistent purchase premium and payout assumption. The reference rows treat their labels as fine-gold amounts so the metal comparison is reproducible. A real bar may instead mark gross mass plus fineness; use its certificate, bar list or refiner specification to determine the actual fine gold before relying on the result.
WEIGHT MAP
“Standard gold bar” means different things in different markets
The LBMA notes that a small retail bar is not a Good Delivery bar merely because its refiner is accredited. Good Delivery applies to bars meeting the specific wholesale rules and accepted for Loco London settlement. Product recognition and refinery accreditation are related but not interchangeable claims.
THE 400-OUNCE MYTH
A Good Delivery bar is valued by actual fine ounces
The familiar “400 oz gold bar” is shorthand. LBMA technical specifications require 350 to 430 fine troy ounces and at least 995 fineness. Marks include the refiner, serial number, fineness and manufacture date information required by the rules. The value worksheet therefore accepts an actual fine-ounce figure inside that range rather than multiplying every bar by 400.
KILOBAR VS GOOD DELIVERY
One kilogram and “400 ounces” are different custody problems
MELT VALUE VS RETAIL PRICE
Five layers can separate a bar from the headline gold price
Price, currency, fine troy-ounce unit, provider and observation time.
Stated fine weight or gross weight × verified fineness.
Fabrication, assay, packaging, distribution, inventory and margin.
Payment, delivery, insurance, tax, storage setup and other declared charges.
The actual price a buyer will pay for that refiner, size, quantity and condition.
The focused gold bar premium calculator accepts a listed price, shipping, payment fees, tax, rewards and an explicit buyback quote. Use it after the size table identifies the metal value. A percentage premium alone is incomplete if checkout cost or the future bid is unknown.
SMALL VS LARGE BARS
The cheapest gold per ounce may be the least divisible holding
Fixed fabrication and handling costs are spread across more gold, but the local bid must confirm the saving survives resale.
They can fit a staged budget while charging more per fine ounce for fabrication, assay and packaging.
A 100-gram need cannot be met by selling part of an intact kilobar without fabrication or refining.
Concentration raises the value exposed to a single loss, access event or verification dispute.
A useful comparison is the premium saved by consolidating versus the flexibility lost. If ten smaller units cost 1.5 percentage points more but prevent a forced full-bar sale later, the extra premium may be an insurance-like cost rather than waste. If the holding is long term and partial sales are unlikely, the larger format can be more efficient.
MINTED VS CAST
Appearance changes handling and cost, not the melt formula
Do not infer authenticity from a polished finish or a rough cast surface. Counterfeits can imitate appearance and packaging. Verification should match transaction value and may include dimensions, mass, conductivity or ultrasound testing, documentation and a reputable counterparty.
AUTHENTICATION & CHAIN OF CUSTODY
A serial number is useful evidence, not a complete conclusion
Refiner, format, stated weight, fineness, serial number and packaging.
Use the refiner, mint, exchange or bar-list record appropriate to the bar.
Business identity, return policy, testing, quote expiry and rejected-product handling.
Weight and dimensions must agree with the exact specification within stated tolerances.
High-value transactions justify more than visual inspection or packaging checks.
Invoice, payment, serial, test result, custody transfer and storage location.
STORAGE & LIQUIDITY
Product value is only useful if ownership and exit are clear
Compare home storage, safe-deposit arrangements and professional vaulting by legal ownership, insurance, access, audit, withdrawal, delivery and sale terms. An allocated account should identify specific bars; an unallocated account is generally a claim on the provider rather than title to named bars. Read the contract rather than assuming the marketing label decides insolvency treatment.
BUYING DECISION
Choose a gold bar size from the exit backward
PRIMARY SOURCES & METHODOLOGY
Weight standards and the market reference are documented separately
- LBMA conversion table for metric, troy-ounce and fineness conversions across common reference sizes.
- LBMA technical specifications for the 350–430 fine-ounce range, minimum fineness, permitted dimensions and marks.
- LBMA London Good Delivery guide for wholesale gold bars and the 999.9 kilobar specification.
- LBMA price explanation for the relationship between wholesale metal prices and premiums on smaller exact-weight products.
- NIST precious-metals conversion information for the exact 31.1034768 grams-per-troy-ounce conversion.
GoldObserve requests a source-labelled XAU price and displays its provider, freshness status and observation time. If that source fails, the tool shows an unavailable state and permits a clearly labelled manual scenario. It does not authenticate a bar, scrape dealer catalogs, calculate tax or import legality, recommend a refiner, dealer or custodian, or forecast gold.
RELATED GOLD TOOLS
Move from weight comparison to an exact transaction
GOLD BAR VALUE FAQ
Frequently asked questions
How much is a gold bar worth?
Its melt value is its fine-gold content in troy ounces multiplied by the current gold price per fine troy ounce. An actual purchase or sale also reflects premium, bid/ask spread, payment, delivery, insurance, tax, storage, assay and dealer terms.
How much does a standard gold bar weigh?
There is no single standard for every market. Retail bars use many exact gram and troy-ounce sizes. A London Good Delivery gold bar contains 350 to 430 fine troy ounces and is commonly nicknamed a 400-ounce bar.
Is a 400 oz gold bar exactly 400 ounces?
No. Under LBMA Good Delivery rules the acceptable fine-gold content ranges from 350 to 430 fine troy ounces. Value must use the actual fine weight recorded for that bar.
How many troy ounces are in one kilogram of gold?
One kilogram of fine gold equals approximately 32.1507466 troy ounces because one troy ounce is exactly 31.1034768 grams.
Is a 1 kg gold bar the same as an LBMA Good Delivery bar?
No. A kilobar is much smaller. LBMA also describes a 999.9 kilobar specification, but London Good Delivery gold settlement bars contain 350 to 430 fine troy ounces.
Why do smaller gold bars cost more per ounce?
Fabrication, assay, packaging, handling and distribution costs are spread across less gold. Smaller units can improve affordability and partial-sale flexibility, but often at a higher percentage premium.
Does assay packaging guarantee a gold bar is genuine?
No single packaging feature replaces verification. Check the exact refiner, weight, fineness, serial number, documentation, seller controls and testing appropriate to the transaction.
Are the premium and payout values on this page dealer quotes?
No. They are user-controlled assumptions applied consistently across reference weights. Obtain written, time-stamped dealer asks and bids for the exact bar before transacting.