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Base Prices (Live)

18K Gold per Gram
26,800,000 Toman
USD Rate
273,000 Toman

Manual Settings

Bubble Calculation

Coin Gold (g) Intrinsic (Toman) Market (Toman) Bubble (Toman) Bubble %
Calculating...

* A positive bubble means the market price exceeds the intrinsic value.

Formula

Intrinsic = coin weight × 18K gold price × (1 + mintage ÷ 100)
Bubble = market price − intrinsic value
Bubble % = (bubble ÷ intrinsic) × 100

A coin bubble is the gap between a coin's market price and the real value of the gold inside it. When a coin trades above its gold content, that difference is the bubble. This tool calculates it for every common Iranian coin using today's 18-karat gold rate.

How it is calculated

First the intrinsic value: the coin's pure gold weight multiplied by the current price per gram, plus a minting percentage. That figure is then subtracted from the market price. A positive result means the coin trades above its gold value.

Why smaller coins carry a bigger bubble

Quarter and half coins are widely used as gifts and small savings, so demand outruns supply, and minting costs are proportionally higher relative to their weight.

Frequently asked questions

Can the bubble be negative?

Yes, though rarely — it means the coin is trading below its gold value, usually during a sharp drop in demand.