What Is the Gold/Silver Ratio, and What Does It Tell You?

Silver investors tend to watch one number more closely than the silver price itself. It is not quoted in dollars, and it does not appear on most brokerage screens. It is the ratio between the two monetary metals — and it has been tracked for well over a century.

The gold/silver ratio is simply how many ounces of silver it takes to buy one ounce of gold:

At a gold price of $4,305 and a silver price of $64.33, the ratio is about 66.9. Put another way: one ounce of gold is currently worth the same as 66.9 ounces of silver.

You can read a live one at the top of the Silver ETF Calculator, which recalculates it from the same sampled prices the calculator uses.

The dollar price of silver tells you what silver costs. The ratio tells you something different: what silver costs relative to gold.

That distinction matters because both metals respond to the same broad forces — monetary policy, real interest rates, inflation expectations, the dollar. When those forces move together, they move both prices in the same direction and the ratio barely changes. The ratio moves when something is affecting one of the metals more than the other.

This makes it a cleaner signal than either price on its own. A rising dollar price of silver might just be a weak dollar. A rising ratio means silver is genuinely underperforming gold.

The ratio is not stable, and that is the point. Over the past century it has traded everywhere from roughly 15 to over 100.

Two extremes are frequently cited. In 1980, at the peak of the Hunt brothers’ attempt to corner the silver market, the ratio briefly fell below 20. In 1991 it went the other way, climbing above 100.

The long-run average sits somewhere in the 50–70 band, depending on the period you measure. Which is to say: the current reading is not remarkable. The ratio spends most of its time somewhere in the middle, with occasional violent excursions in both directions.

The convention is straightforward, though it describes relative value rather than a prediction:

A ratio of 100 means you can swap one ounce of gold for a hundred ounces of silver — a lot of silver by historical standards, which is usually read as silver being undervalued.

But be careful with the implication. A high ratio is not a signal that silver must rise. The ratio can fall just as easily because gold falls faster than silver. It is a measure of relative price, not a forecast, and it has stayed at levels that looked extreme for years at a time.

The short answer is that gold and silver are not the same kind of asset, even though they are both called precious metals.

Nearly all gold ever mined still exists, in vaults and jewellery, and almost all of it is held as a store of value. Demand is dominated by investment and central bank reserves.

Silver is different. A large share of annual silver demand is industrial— solar panels, electronics, electric vehicle components, brazing alloys. Much of that silver is consumed rather than stored. That gives silver a second demand driver tied to the manufacturing cycle, and it makes the price considerably more volatile. Silver routinely moves two to three times as much as gold over the same period.

More volatility on one side of the equation means more volatility in the ratio.

The ratio is widely discussed as a trading signal — hold silver when it is high, hold gold when it is low. Whether that is worth doing depends far more on how you hold the metal than on the signal itself.

Take a concrete case. You hold 100 ounces of gold through GLD, the ratio is 66.9, and you decide to switch:

Now the cost of actually executing that. GLD trades on a penny-wide spread most of the day, which on a $393 share is about 0.003%. SLV is similar. Sell one and buy the other and you have crossed two spreads — the round trip comes to well under 0.05%. At a commission-free broker, that is the entire cost.

Holding physical metal is a completely different proposition. Retail premiums on silver coins and small bars run 5% to 10% over spot on the way in, and dealers buy back below spot on the way out. A round trip through physical can cost 15% or more — which for a signal that might represent a 20% relative mispricing leaves very little on the table.

So the cost objection is real, but it is specific to physical metal. For someone holding SLV or SIVR and GLD, IAU or GLDM, execution is cheap and the decision is really about whether you believe the ratio will revert.

The ratio has no natural anchor. Nothing forces it back to any particular level, and the “average” you measure depends heavily on which decades you include. Pick a start date in 1980 and silver looks permanently cheap; pick one in 1991 and it looks the opposite.

The ratio can also stay at an extreme for years. A reading of 90 is high by almost any historical standard, and it has persisted for long stretches without resolving. If you rotate into silver on a high ratio and it goes to 100, you were early in a way that costs real money — especially once you account for silver’s tendency to fall harder than gold when both decline.

The ratio is most useful as context: it tells you where silver sits relative to gold today. That is genuinely useful information if you hold both, and it is a much lower bar than predicting where the ratio goes next.

If you decide to act on the ratio, the vehicle you use changes the result as much as the timing does.

ETFs are the cheapest and most liquid route. GLD, IAU and GLDM for gold; SLV and SIVR for silver. Tight spreads, no storage to arrange, and you can hold them in any brokerage account. The costs are the expense ratio and the spread.

Physical metal has no counterparty and no custodian, which is the whole point for some holders. The trade-off is the spread — 5% to 10% on retail-sized silver, less on larger bars — plus storage and insurance if the amount is significant.

Mining shares are not a substitute. SIL and GDX hold the equity of companies that dig the metal up, not the metal itself. They are levered to the metal price but also exposed to operating costs, geology, management, jurisdictions and equity markets generally. Their price is not a function of the gold or silver price in any fixed way, which is why they cannot be converted the way an ETF can.

If you hold gold ETFs or silver ETFs, the ratio also falls out of the conversion arithmetic. Each calculator derives its ratio from live spot prices rather than assuming a fixed number of ounces per share, because that number drifts as fund fees are deducted.

The About page documents where the prices come from and how the ratios are derived.