Blog 46: Precious Metal Weights in History and Around the World


Throughout history and across different cultures, precious metals like gold, silver, platinum, and palladium have played a significant role in economies, trade, and the measurement of wealth. As a result, various weight systems have been used to measure these valuable metals. This blog post will explore the historical and global context of precious metal weights, focusing on the evolution of these systems and the diverse methods used in different regions.

Historical Development of Precious Metal Weights

  1. Ancient civilizations: In ancient civilizations, such as Egypt, Mesopotamia, and the Indus Valley, early weight systems were developed for measuring precious metals in trade and commerce. In many cases, these systems were based on seeds, grains, or small stones, which served as standardized units of weight.

  2. Greek and Roman empires: As the Greek and Roman empires expanded, they adopted and refined existing weight systems for measuring precious metals. The Greeks used the talent, mina, and drachma, while the Romans employed the libra, uncia, and siliqua.

  3. Middle Ages: During the Middle Ages, various European kingdoms and city-states developed their own weight systems for precious metals, often based on local units like the mark, livre, and pound. The use of these systems facilitated trade and commerce throughout Europe.

  4. The troy system: The troy weight system, which originated in France in the late Middle Ages, became the dominant system for weighing precious metals in Europe and eventually worldwide. It is based on the troy pound, troy ounce, and pennyweight, and is still used today for measuring gold, silver, platinum, and palladium.

Precious Metal Weights Around the World

  1. Asia: In Asia, numerous weight systems have been used throughout history to measure precious metals, often reflecting regional and cultural differences. Notable examples include the Chinese tael (also known as the liang), the Indian tola, and the Japanese ryo. Many Asian countries have since adopted the troy system for international trade and investment purposes.

  2. Middle East: In the Middle East, the Islamic dinar and dirham were historically used to measure gold and silver, respectively. The Ottoman Empire later adopted the kurush and the piastre for weighing precious metals. Today, Middle Eastern countries use the troy system in line with international standards.

  3. Americas: Before the arrival of Europeans, indigenous peoples in the Americas used various weight systems for measuring precious metals, such as the Aztec quachtli and the Inca yupanqui. With the colonization of the Americas, European weight systems were introduced, and the troy system eventually became the standard for precious metals in North and South America.

  4. Africa: Across the African continent, diverse weight systems were used in different regions and periods for measuring precious metals. Examples include the West African mithqal and the Ethiopian salt bar. Over time, as global trade and colonial influence expanded, the troy system became the standard for precious metal weights in Africa.

Modern Precious Metal Weights

Today, the troy system remains the international standard for weighing gold, silver, platinum, and palladium. Precious metal bullion products, such as coins and bars, are typically measured in troy ounces, with one troy ounce equal to 31.1035 grams. However, some bullion products are also available in other weight units, like grams and kilograms, to accommodate different markets and investor preferences.

For numismatic or collectible coins, weights can vary depending on factors such as the coin's age, origin, and rarity. Some numismatic coins are measured using historical weight systems, while others follow modern standards like the troy or 

metric systems.

In the world of precious metal investments, it's essential to be familiar with the various weight systems to understand the value of different products accurately. Additionally, knowledge of historical and global weight systems can offer insight into the diverse cultural and economic contexts in which precious metals have been valued and traded throughout history.


The history of precious metal weights is a fascinating journey through time and across cultures, reflecting the enduring importance of these valuable materials in human societies. From ancient civilizations to modern-day international trade, various weight systems have been used to measure gold, silver, platinum, and palladium. Understanding these systems, both historical and contemporary, is crucial for investors and collectors alike, as it provides valuable context for the precious metal market and its global reach.

As you explore the world of precious metals, remember to consider the diverse weight systems and their historical and cultural significance. This knowledge will not only enrich your understanding of the market but also deepen your appreciation for the remarkable story of precious metals throughout human history.


Back to blog

Leave a comment

Please note, comments need to be approved before they are published.