How Much Is 400g of 18K Gold Worth in Australian dollars?
400 grams of 18K gold is worth A$56,091.24 in Australian dollars today
(Based on spot $4,014/oz · 1 USD = A$1.4488 · Updated June 26, 2026)
Estimates convert USD spot using a live exchange rate. Not financial advice, not a purchase offer, and not a guarantee of what any buyer will pay.
For large totals, consider at least one refinery or mail-in quote; the % difference can outweigh the inconvenience.
Photograph weights and stamps before insured post—standard for Australian gold-by-post services.
Adjacent gram pages (AUD):← 350g450g →
At live spot converted to Australian dollars, 400 g of 18K gold has a rough melt value of about A$56,091.24. This is not a purchase offer—just an estimate from spot × weight × purity × exchange rate.
View in USD ($) →View in GBP (£) →In EUR (€) anzeigen →View in CAD (C$) →
18K (750) is the premium fineness for many Australian fine jewellers and engagement rings.
Weighing & sorting tips
- If a pawnbroker quotes a number fast, ask what % of melt they're paying in Australian dollars.
- For high-value lots, consider insured courier post rather than standard mail.
Gold Value Calculator
Adjust this price to project a future value. 24K per troy oz.
Total gold valueA$56088.00
Current 18K price • A$140.22/gram • A$4361.33/oz
Formula: weight × karat multiplier × spot price. 14K = 0.585, 18K = 0.75, 10K = 0.417.
USD spot converted to Australian dollars at live exchange rates. Same basis as the estimates on this page. Adjust weight, unit, or karat.
Calculate exact pawnbroker payout →
Melt value by karat (400 g, AUD)
Same weight, different purity—use this to sanity-check whether your item's stamp matches your expected value in Australian dollars.
What australian buyers might pay (typical ranges)
Dealers pay a share of melt. Below uses the same total melt as this page (A$56,091.24). Bulk scrap often gets the best % from refineries or large mail-in firms—turnaround is slower but spreads costs. Not a quote.
| Buyer type | Typical % of melt | Est. offer (A$) |
|---|---|---|
| Pawnbroker | 50–70% | A$28,045.62 – A$39,263.87 |
| Local gold buyer / jeweller | 65–80% | A$36,459.30 – A$44,872.99 |
| Online / mail-in buyer | 80–92% | A$44,872.99 – A$51,603.94 |
| Refinery (bulk / high volume) | 88–95% | A$49,360.29 – A$53,286.68 |
Ranges are typical experience bands; local buyers vary. Not a quote.
How we calculate melt in Australian dollars
USD spot per gram × live USD→AUD rate (1 USD = A$1.4488). For 18K: 400 g × A$140.23/g ≈ A$56,091.24 before any buyer haircut. 18K price hub.
Related links
- 18K gold price per gram (overview)
- All 18K gold value topics
- Gold price FAQ
- Sell gold jewellery online
- How to sell gold in Australia
- 750 hallmark reference
- Pawnbroker payout estimate (18K)
FAQ
- How much is 400 grams of 18K gold worth in Australian dollars?
- 400 grams of 18K gold is worth about A$56,091.24 melt in Australian dollars at today's gold price of $4,014/oz (1 USD = A$1.4488). Typical australian buyers pay A$28,045.62–A$39,263.87 (pawnbroker) or A$44,872.99–A$51,603.94 (online).
- Is A$56,091.24 what australian buyers will pay?
- Usually not. Many buyers pay a percentage of melt—often roughly 50–70% at pawnbrokers for quick cash. Online or mail-in buyers may pay a higher share. Always compare at least two quotes in Australian dollars.
- Do bulk lots get better payout percentages?
- Often yes with established buyers or refineries—fixed costs spread over more weight. The tradeoff is verification time and sometimes minimums.
- Does 18K gold price in AUD change every day?
- Spot gold and the USD→AUD rate both move. Our pages refresh on a regular schedule. Use the same spot and rate basis as our calculators when comparing offers.