Is Gold Heavier Than Silver? The Density of Gold and Silver

If you’ve ever held gold and silver, you might have noticed that gold feels surprisingly heavy for its size. A small gold bar could feel just as heavy – if not heavier – than a much larger silver bar.

This difference comes down to density. Even though a 1 oz gold bar weighs exactly the same as a 1 oz silver bar, gold is far denser than silver. This means the same amount of weight takes up much less space.

If you’ve ever wondered why gold bullion is smaller than silver bullion of the same weight, keep reading to learn about the density of gold vs silver and what it means for investors.

What is density?

Density measures how much mass is packed into a given volume. It essentially describes how tightly packed a substance’s particles are, or how heavy a material will feel for its size. Forgive us, but we’re going to get into a little bit of science and mathematics…

The formula for density is:

Where:

• p (rho) = density
• m = mass
• v = volume

Density is typically expressed in grams per cubic centimetre (g/cm³). When a material has high density, it packs more mass into the same amount of space than a material with a lower density.

For example, a cubic centimetre of lead would weigh much more than a cubic centimetre of wood because lead is denser than wood. The same principle applies to gold and silver.

Here’s an easy way to think about it:

• If two objects are the same size, the denser object will weigh more
• If two objects weigh the same, the denser object will be smaller.

This is why a 1 oz gold Britannia coin will always be smaller than a 1 oz silver Britannia coin, even though they weigh exactly the same.

Gold vs silver density

The table below compares the density of gold vs silver:

METAL	DENSITY (G/CM³)	VOLUME OF 1 TROY OUNCE (CM³)
Gold	19.32	1.61
Silver	10.49	2.96

Gold’s density is nearly twice that of silver. This means:

• A 1 oz gold bar would occupy about half the volume of a 1 oz silver bar
• A gold coin and silver coin of the same size would have very different weights
• A 1kg gold bar would be much smaller than a 1kg silver bar.

Read More: Density of Gold: A Simple Guide and Tables

Why is gold denser than silver?

To understand why gold is denser than silver, we have to zoom into the atomic level. Gold and silver are both elemental metals, which means they consist of only one type of atom. They also share the same basic crystal structure, known as a face-centred cubic (FCC) structure.

However, one major difference between the two metals is the size and mass of their atoms:

PROPERTY	GOLD (AU)	SILVER (AG)
Atomic Number	79	47
Atomic Mass	196.97	107.87
Density (g/cm³)	19.32	10.49

If we look at the atomic number, we can see that gold atoms contain significantly more protons and neutrons than silver atoms (79 rather than 47). This means each gold atom is carrying more mass while occupying a relatively similar amount of space.

With more mass packed into every cubic centimetre of gold, it’s naturally far denser than silver.

Visualising density

One easy way to think about density is with the classic example of feathers versus bricks.

Let’s say you have two boxes, one holding a kilogram of feathers and the other holding a kilogram of bricks. If those two boxes were the same size, you may only have a few bricks in one but you’d have thousands of tightly-packed feathers in the other. That’s because bricks are much denser than feathers, so you need less to take up the same amount of weight.

It’s the same with gold and silver.

If you had a 1 oz gold bar and a 1 oz silver bar, both would weigh exactly the same but the silver bar will be larger because silver is less dense than gold. On the other hand, if you had one 10x20cm gold bar and another 10x20cm silver bar, the gold bar would weigh almost twice as much as the silver because there’s more mass packed into the same volume.

This difference becomes especially obvious when comparing bullion coins. For example, a 1 oz gold coin and a 1 oz silver coin contain the exact same amount of precious metal by weight. But because silver is less dense, silver bullion coins must be physically larger to accommodate that ounce.

Let's take the American Eagle for example. A 1 oz gold American Eagle measures 32.70 mm by 2.87 mm while a 1 oz silver American Eagle measures 40.60 mm by 2.98 mm.

This is why silver bullion also requires more storage space than gold bullion. If you were to buy silver in large quantities, you’d likely need a lot more storage space than for an equivalent amount of gold.

Density and counterfeit bullion

Density is also one of the reasons why it’s so difficult to create convincing counterfeit gold products. Gold’s density of 19.32g/cm³ is quite high compared to most common metals. When making counterfeit gold products, most producers use lower-density metals, which means they might have:

• The correct size but lower weight
• The correct weight but larger dimensions.

If you’re doubting a gold coin or bar you own, one way to check its legitimacy is by measuring its dimensions. See More: How To Spot Fake Gold Coins and Avoid Fraud

How gold and silver density affects real-world applications

If you’ve ever wondered why gold and silver are used in different ways, the difference in their density might help explain it.

Gold’s high density allows it to pack a significant amount of mass and value into a small space. This, combined with gold’s corrosion resistance, malleability, and reliability, makes it useful in applications where durability and performance are critical. Gold is commonly used in:

• Jewellery
• Investment bars and coins
• Electronics and circuit bars
• Dentistry
• Medical devices
• Aerospace and satellite technology.

Silver, while less dense than gold, offers the highest electrical conductivity of any metal, as well as excellent thermal conductivity and reflectivity. It’s thanks to these properties that silver is so widely used across a range of industries. Silver is commonly used in:

• Jewellery
• Electronics
• Solar panels and renewable energy systems
• Photography
• Brazing and soldering
• Medicine.

Why density matters for investors

The difference between gold and silver’s density isn’t just a cool fact, it actually has practical implications for investors, especially when it comes to storage.

Because gold is nearly twice as dense as silver, and significantly more valuable per ounce, you need far less space to store it. For example, you could easily fit $50,000 worth of gold bullion inside a small home safe, while $50,000 worth of silver bullion would require a substantially larger storage space.

This is important if you intend on making bulk purchases or increasing your holdings over time. As your silver holdings grow, you may need to factor in additional storage and insurance costs.

See: What is the Proper Way to Store Gold?

Tips for investing in gold and silver

Whether you choose to invest in gold, silver, or a combination of both, here are some tips to keep in mind:

1. Match the metal to your goals

Gold is often seen as a long-term store of value and portfolio stabiliser, acting as a hedge against inflation and currency devaluation. Silver tends to be more volatile but may offer greater upside potential due to its industrial demand and smaller market size.

Before you invest in gold or silver bullion, it’s worth asking yourself whether your main goal is:

• Wealth preservation
• Portfolio diversification
• Inflation protection
• Growth potential.

Depending on your answer, you may choose to allocate more of your portfolio towards gold or silver.

Learn More: How to Build a Precious Metals Portfolio From Scratch

2. Consider liquidity and transportation

Gold and silver are both highly liquid metals, but gold’s smaller size and higher value might make it easier to transport and sell when needed. If crisis protection is a goal of yours, this may be worth a consideration.

3. Think about storage costs

If you plan on building a large portfolio, either now or in the future, it’s important to think about storage requirements and insurance costs. Your three main options for storing bullion are:

• Home storage (lowest cost, most access, but least secure)
• Safe deposit box (medium cost, less access, medium security)
• Professional vaulting service (highest cost, lowest access, highest security).

4. Diversify across both metals

In most cases, investors don’t just choose between gold or silver, they invest in both. These two metals often complement one another because they respond differently to market conditions.

For example, gold tends to perform well during periods of uncertainty and financial stress, while silver often benefits during periods of economic expansion due to its industrial demand.

5. Monitor the gold-silver ratio

The gold-silver ratio tells you how many ounces of silver you need to buy one ounce of gold. A historically high ratio may suggest silver is relatively undervalued compared to gold, while a historically low ratio suggests that gold is undervalued compared to silver.

You shouldn’t base your entire investment decision on the ratio, but it can be a helpful way to spot opportune moments to buy or sell.

Read more about the gold-silver ratio and how to use it for investing: What is the Gold Silver Ratio? Gold Silver Ratio Chart

FAQ: Is Gold Heavier Than Silver?

How much heavier is gold than silver?

Gold is nearly twice as heavy as silver, with a density of 19.32 g/cm³ compared to silver’s density of 10.49 g/cm³.

Why is gold heavier than silver?

Gold is heavier than silver because its atoms contain more protons and neutrons than silver atoms. To give you an idea, a gold atom has an atomic number of 79 compared to silver’s 47. This essentially means that gold atoms can pack more matter into the same amount of space.

What metals are denser than gold?

There are only four other metals denser than gold. The table below compares their densities:

METAL	DENSITY
Gold (Au)	19.32 g/cm³
Osmium (Os)	22.59 g/cm³
Iridium (Ir)	22.56 g/cm³
Platinum (Pt)	21.45 g/cm³
Rhenium (Re)	21.02 g/cm³

How does gold’s density affect counterfeit bullion?

Gold’s density makes it difficult to create convincing counterfeit bullion products. Because most common metals are less dense than gold, a fake gold bar or coin made from these metals will either weigh too little for its size, or be too large for its weight.

Why is silver bullion bigger than gold?

Silver bullion is bigger than gold bullion because pure silver is less dense than gold. This is why a 1 oz silver bar or coin will be larger and thicker than a 1 oz gold bar or coin.

Invest in precious metals

If you’re ready to invest in gold, silver, or other precious metals, you’re in the right place. At StoneXBullion, we stock a wide collection of pure gold, silver, platinum, and palladium bullion coins and bars from the world’s most trusted mints and refineries. Browse our selection and start preserving your wealth today.