100 Gram Gold Bar Size: Valcambi Dimensions & Ounces
100 Gram Gold Bar Size: Valcambi Dimensions and Troy-Ounce Conversion
A minted 100 gram Valcambi gold bar is approximately 47 mm long, 27 mm wide, and 4.5 mm thick. Its gold weight equals about 3.215 troy ounces.
I am Joe Agate, a working coin dealer in Buffalo. The 100 gram format sits in a useful middle ground: much more gold than a one-ounce bar, but far more compact and accessible than a kilogram bar. The numbers are simple once you keep ordinary ounces and troy ounces separate.
100 grams of gold in troy ounces
Precious metals use troy ounces, not the avoirdupois ounces used for groceries and household shipping. One troy ounce is exactly 31.1034768 grams.
100 grams ÷ 31.1034768 = 3.21507 troy ounces
The bar’s fineness is a separate specification. At .9999 fine, 99.99% of its gross weight is represented as gold:
100 grams × 0.9999 = 99.99 grams fine gold
99.99 grams ÷ 31.1034768 = 3.21475 troy ounces fine gold
Valcambi 100 gram gold bar dimensions
| Measurement | Approximate specification | Comparable reference |
|---|---|---|
| Length | 47.0 mm | 1.85 inches |
| Width | 27.0 mm | 1.06 inches |
| Thickness | 4.5 mm | 0.18 inch |
| Gross bar weight | 100 grams | 3.21507 troy oz |
| Fineness | .9999 gold | 99.99% stated purity |
These are reference dimensions for the minted bar itself. The sealed assay package is larger and should not be used as the bar dimension. Manufacturing tolerances and packaging versions can vary, so use measurements as one authentication check rather than a stand-alone verdict.
Why buyers choose 100 grams instead of one ounce
A larger bar often spreads fixed fabrication and packaging costs over more gold, which may reduce the percentage premium compared with several small bars. It also concentrates value into a compact package. The tradeoff is divisibility: you cannot sell one-third of a sealed 100 gram bar without destroying the product.
| Consideration | 100 gram bar | Three one-ounce bars |
|---|---|---|
| Total gold exposure | Slightly more than 3.2 troy oz gross equivalent | 3 troy oz |
| Number of packages | One | Three |
| Partial resale | Whole bar normally sold together | One bar can be sold at a time |
| Premium tendency | Often lower per ounce | Often higher per ounce, market dependent |
What the assay card does
The card protects the minted surface and displays identification details such as refiner, weight, fineness, and a serial number. It supports—but does not magically prove—authenticity. Keep it sealed and compare the serial number on the bar with the number printed on the package. Agate’s guide to assay cards on gold bars explains the role of sealed packaging in more detail.
How to compare the premium
- Multiply the live gold price per troy ounce by the fine-gold content you are using.
- Compare the result with the dealer’s total price for your payment method.
- Calculate both the dollar premium and the percentage premium.
- Compare with one-ounce and smaller bars on the same day.
- Ask how the bar would be treated on resale if the assay is damaged.
Do not rely on the product price alone; the useful comparison is cost per fine troy ounce. If flexibility matters more than the lowest possible percentage premium, several smaller products may still fit you better. See fractional gold premiums explained for the other side of that tradeoff.
Buying and storage checklist
- Confirm 100 gram gross weight and .9999 fineness.
- Verify the manufacturer as Valcambi Suisse.
- Inspect the assay card for cuts, separation, or tampering.
- Match the serial number where visible.
- Use insured, trackable delivery.
- Store the card flat in a dry, secure location.
- Keep the invoice and an inventory record.
- Do not open the package merely to handle the bar.
Frequently asked questions
Is 100 grams the same as 3.2 ounces?
It is about 3.215 troy ounces. Be sure your comparison uses troy ounces.
Is the assay card included in the 100 gram weight?
No. The marked metal weight applies to the bar, not the plastic and card packaging.
Should I remove a Valcambi bar from its assay?
Normally, no. Intact original packaging can make identification and resale easier.
Is a 100 gram bar IRA eligible?
Fineness may meet federal requirements, but eligibility also depends on the product, transaction, and custodian. Confirm before buying for an IRA.
Review the 100 gram Valcambi listing
See the actual product photos, specifications, availability, and current price for Agate’s carded 100 gram Valcambi Suisse gold bar.
Research references: Valcambi minted-bar information and Kitco’s 100 gram Valcambi specifications. Product-specific statements and images come from the linked Agate listing.