Gold/silver ratio explained: ratio between the gold price and the silver price

The gold-silver ratio indicates how many troy ounces of silver have the same market value as one troy ounce of gold. The ratio is calculated by dividing the gold price per troy ounce by the silver price per troy ounce. This produces a single number that allows the relative price movement of both precious metals to be compared.

Investors use the ratio to examine whether gold is relatively high or low compared to silver and how the relationship changes over time. However, the ratio is not a predictor and does not prove that either metal is under- or overvalued.

In this article you will read how the gold-silver ratio is calculated, what causes it to rise or fall, and what a high or low ratio can and cannot indicate.

What exactly is the gold/silver ratio?

The gold-silver ratio is the price of gold divided by the price of silver and thus indicates the relative market value of the two metals. A ratio of 70 means that 70 troy ounces of silver at that moment have the same spot value as one troy ounce of gold.

Other names include the silver-gold ratio, gold/silver ratio and the English term gold-silver ratio. In financial markets the ratio is sometimes also referred to as XAU/XAG.

The definition in one sentence:
The gold/silver ratio is: the gold price per troy ounce divided by the silver price per troy ounce.

View the current gold/silver ratio here.

How do you calculate the gold/silver ratio?

The formula for calculating the gold-silver ratio is:

Gold/silver ratio = gold price (per troy ounce) ÷ silver price (per troy ounce)

A troy ounce (oz) is the international standard in precious metals and weighs 31.1035 grams. Because both gold and silver are priced in troy ounces, the ratio is a “pure” comparison between the two metals.

Example:

• Gold: €2,000 per troy ounce
• Silver: €25 per troy ounce
• → Ratio = 2,000 ÷ 25 = 80

That means: 1 ounce of gold "costs" 80 ounces of silver.

Why is this ratio so relevant for investors?

The gold-silver ratio shows which precious metal is performing relatively stronger or weaker, without only looking at the absolute price level. For example, both prices can rise while the ratio still falls because silver is rising faster than gold.

The ratio therefore helps answer three different questions:

• How is gold performing relative to silver?
• Does the current ratio differ from previous periods?
• Does the ratio between gold and silver still fit the chosen portfolio?

A high ratio is not automatically proof that silver is undervalued. The same result can occur because gold is relatively strong, silver is relatively weak, or both developments happen simultaneously. For a useful analysis, the ratio must therefore always be combined with other market information.

Later in this article we will go deeper into a high or low gold/silver ratio and what this means for investing.

The ratio between gold and silver prices

The ratio between gold and silver prices is at the heart of the gold/silver ratio. This ratio not only shows which precious metal is more expensive, but above all how the market values gold and silver relative to each other in different economic conditions.

To properly understand that dynamic, it is important to look at the fundamental differences between the two metals.

Gold and silver: two precious metals with different roles

Although gold and silver are often mentioned together, they fulfil a distinctly different function in the global economy:

• Gold: Buy gold is primarily seen as a monetary store of value. It has functioned for centuries as protection against inflation, currency risk and financial uncertainty. Central banks hold gold as a reserve, and in times of crisis demand for gold often increases.
• Silver: Buy silver has a dual role. On the one hand it is a precious metal and an investment vehicle, but on the other hand also an industrial commodity. Silver is widely used in, among others, electronics, solar panels, medical applications and the automotive industry.

Why does the gold-silver price ratio move so strongly?

The ratio between gold and silver prices is not a static figure. It constantly changes due to a combination of factors:

• Economic growth or contraction: During periods of economic growth silver often benefits extra from increasing industrial demand. The silver price then rises relatively faster than the gold price, causing the ratio to fall.
• Financial uncertainty and crises: In times of uncertainty investors mainly seek safety. Gold benefits more strongly than silver then, which leads to a rising gold/silver ratio.
• Monetary policy and interest rates: Low interest rates and loose monetary policy are generally favorable for both metals, but silver often reacts more strongly to changes in sentiment.
• Supply and scarcity: Silver is largely produced as a byproduct in the mining of other metals. As a result, supply can be less flexible in responding to price changes than with gold.

Relative value rather than absolute price

An important advantage of looking at the gold/silver price ratio is that you are not dependent on absolute price levels. Whether gold costs €1,500 or €2,500 per troy ounce, the ratio shows how gold relates to silver.

For investors this means:

• Not only asking 'Is gold expensive or cheap?'
• But above all: is gold more expensive or cheaper than silver, relatively speaking?

This makes the gold/silver ratio a valuable comparative measure within a precious metals portfolio.

Why silver often determines the ratio

In practice it is usually the silver price that causes the ratio to move strongly. Silver experiences larger price swings, both up and down. As a result:

• the ratio often falls quickly in rising markets,
• and the ratio rises sharply in falling or uncertain markets.

This explains why investors regularly use the silver-gold ratio as an indicator of market sentiment.

The gold/silver ratio is: the gold price per troy ounce divided by the silver price per troy ounce.

Historical gold/silver ratio: development from antiquity to the present

The historical gold-silver ratio primarily shows that there is no timeless equilibrium level. In different periods the ratio was determined by natural availability, monetary systems, legal agreements or free-market prices.

Antiquity: natural scarcity determines the ratio

In antiquity, the ratio between gold and silver was largely determined by natural availability. Archaeological and historical sources show that in many civilizations, including those of Egypt, Mesopotamia and the Roman Empire, the gold/silver ratio fluctuated between 10:1 and 15:1.

These ratios reflected:

• the relative rarity of gold compared to silver;
• the simple mining techniques of that time;
• the use of both metals as means of payment.

Historical sources report ratios for various ancient civilizations that were often lower than in the modern free market. These figures are not always directly comparable: weight units, coin purities, local markets and government decisions varied greatly. For the Roman Empire, a ratio around 12:1 is frequently mentioned.

Middle Ages: trade and monetary agreements

In the Middle Ages, the ratio between gold and silver remained relatively stable. Many European trading states maintained fixed exchange ratios between gold and silver coins.

The historical gold-silver ratio in this period was usually between 12:1 and 14:1.

Important to note:

• governments actively intervened in coin ratios;
• gold and silver both played a monetary role;
• international trade required stability in units of value.

The ratio was therefore largely politically and monetarily controlled.

19th century: the bimetallic standard

In the 19th century, several countries introduced the so-called bimetallic standard, in which gold and silver were officially used side by side as money. The ratio was legally fixed, often around 15:1.

This provided temporary stability, but also had disadvantages:

• when the market ratio differed from the legal ratio, the "cheaper" metal disappeared from circulation;
• silver or gold was hoarded or exported;
• monetary tensions increased.

This period shows that a fixed gold/silver ratio is difficult to maintain in a free market.

20th century: abandoning gold and silver as money

With the abandonment of the gold standard and the disappearance of silver as an official means of payment, the gold/silver ratio changed fundamentally. From that moment on the ratio was determined entirely by supply and demand on the global market.

Characteristic of this period:

• gold assumed a dominant role as a monetary store of value;
• silver increasingly developed into an industrial commodity;
• the ratio began to fluctuate more strongly.

In the second half of the 20th century the gold to silver price ratio often ranged between 40 and 60, but with notable outliers.

Financial crises and extreme ratios

Since gold and silver are no longer linked by the same fixed coin ratio, the ratio moves much more. During the market stress of March 2020 the ratio, according to the Silver Institute, briefly rose above 127, after which it fell sharply later in the year. Source: Silver Institute.

This example shows that extreme ratios can coincide with exceptional market stress. It does not demonstrate that every high ratio is automatically followed by the same price reaction.

What does a high or low gold/silver ratio mean?

A high or low gold-silver ratio simply describes how gold and silver are priced relative to each other at that moment. To judge whether the level is truly exceptional, a relevant historical period must first be chosen.

What does a high gold/silver ratio mean?

A high gold-silver ratio means that a relatively large amount of silver is needed to reach the same spot value as one troy ounce of gold. Investors may see this as a reason to investigate silver further, but the ratio does not prove that silver is undervalued or that the ratio is about to fall. In practice this means:

• gold is relatively expensive compared to silver, or
• silver is relatively cheap compared to gold.

What does a low gold/silver ratio mean?

A low gold-silver ratio means that relatively little silver is needed to reach the same spot value as one troy ounce of gold. This can follow a period in which silver performed stronger, but on its own it is not proof that gold is cheap or that the ratio must rise again. This often occurs during periods when:

• economic growth picks up;
• industrial demand for silver increases;
• investors are more willing to take risks.

Beleggers gebruiken de goud-zilver ratio onder andere als indicator en om het marktsentiment in te schatten.

How do investors use the gold/silver ratio?

Investors do not use the gold/silver ratio as an exact predictor, but as a strategic tool to better support decisions.

The ratio helps assess relative value, gauge market sentiment and determine the balance between gold and silver within a portfolio.

1. As a tool for portfolio allocation

Many investors hold both gold and silver to diversify risks. The gold/silver ratio is used to assess whether that allocation is still balanced.

• High ratio: relatively more gold, relatively little silver
• Low ratio: relatively more silver, relatively less gold

When the ratio is historically high, some investors choose to cautiously increase their exposure to silver. At a low ratio, gold can become more attractive within the portfolio.

2. As a long-term indicator (not a timing instrument)

The gold/silver ratio is primarily suitable for long-term analysis. Investors look at:

• historical ranges;
• structural trends;
• exceptional outliers (extremes).

A ratio that deviates from historical averages for an extended period may prompt a reconsideration of strategy, but rarely immediate trading. The ratio therefore serves as a supporting, not guiding, tool.

When making historical comparisons always choose a clear measurement period. An average from the twentieth century, an average since 1970 and an average over the past ten years can differ significantly.

3. For interpreting market sentiment

The ratio is often seen as a barometer of confidence or uncertainty in the market:

• Rising ratio: increasing uncertainty, flight to gold, defensive market
• Falling ratio: more risk appetite, strengthening economy, stronger silver demand

Investors use this signal to test their expectations against broader economic developments, such as inflation, interest rates and geopolitics.

4. For relative value analysis (gold versus silver)

Instead of asking “Is gold expensive?” or “Is silver cheap?”, experienced investors ask a different question: is gold more expensive than silver, relatively speaking?

The gold/silver ratio makes that comparison possible, independent of absolute price levels. This is especially useful in periods when:

• both metals rise, but not at the same pace;
• or both fall, but with different intensity.

5. Switching strategies among experienced investors

A small group of experienced investors applies so-called ratio-switching strategies. This involves swapping gold for silver (or vice versa) when the ratio reaches extreme values.

Important notes:

• this requires discipline, knowledge and patience;
• transaction costs and taxes play a role;
• it is not a standard strategy for every investor.

For most retail investors this remains a theoretical framework, not daily practice.

6. In combination with other analyses

The gold/silver ratio is rarely used as the sole tool. Investors often combine it with:

• fundamental analysis of gold and silver;
• inflation and interest rate expectations;
• industrial demand for silver;
• monetary developments and central bank policy.

Conclusion: use the gold-silver ratio as context

The gold-silver ratio shows how many troy ounces of silver have the same spot value as one troy ounce of gold, thereby making the relative price movements of both metals clear.

A rising ratio means gold is performing relatively better; a falling ratio means silver is performing relatively better. However, the ratio does not automatically explain why that movement occurs and does not predict which price will rise or fall next.

Therefore use the ratio in combination with the separate gold and silver prices, market developments, product costs and your own objectives. For physical investors, the premium, spread, storage and buyback terms are especially important. This keeps the gold-silver ratio a useful analytical framework, without making it an exact timing instrument.