When reaching into your pocket for some spare change, you’ll likely come across a good number of dimes. These small silver coins have become an everyday part of our financial system. But have you ever wondered just how much a dime weighs?

In this comprehensive guide, we’ll walk you through everything you need to know about dime weights.

If you’re short on time, here’s a quick answer to your question: A dime weighs 2.268 grams.

A Brief History of the Dime

The dime, a small coin worth 10 cents, has been an integral part of the United States currency system for many years. Let’s take a closer look at the history of this humble coin.

When the Dime Was First Introduced

The dime was first introduced in the United States in 1796. It was authorized by the Coinage Act of 1792, which established the U.S. Mint and standardized the country’s currency. The original design of the dime featured a bust of Lady Liberty on the obverse side, and an eagle on the reverse side.

However, the early dimes were quite different from the dimes we know today. They were larger in size and made of silver. In fact, the weight of the original dime was around 2.7 grams. Over time, the design and composition of the dime underwent several changes.

Changes to the Dime Over Time

Throughout the years, the dime has gone through various modifications in terms of its design and composition. In 1837, the design of the dime was changed to feature a seated Liberty on the obverse side, and an olive branch and torch on the reverse side.

In 1892, the dime underwent another significant change with the introduction of the Barber dime. This design, created by Charles E. Barber, featured a portrait of Liberty on the obverse side, and an eagle with outstretched wings on the reverse side.

Fast forward to 1946, the dime received a makeover with the introduction of the Roosevelt dime. This design, featuring a portrait of President Franklin D. Roosevelt on the obverse side, has remained largely unchanged to this day.

As for the weight of the dime, it has also evolved over time. Currently, a modern dime weighs approximately 2.268 grams. It is made of a blend of copper and nickel, giving it its distinctive appearance.

To learn more about the history of the dime, you can visit the official website of the United States Mint, which provides detailed information about the specifications and evolution of the dime.

Dime Specifications


A dime, which is a coin in the United States currency, has specific dimensions that differentiate it from other coins. It has a diameter of 17.91 millimeters and a thickness of 1.35 millimeters. These measurements make the dime one of the smaller coins in circulation.


The composition of a dime has changed over the years. From 1796 to 1837, dimes were made of 89.24% silver and 10.76% copper. However, starting from 1837, dimes were made of an alloy consisting of 90% silver and 10% copper.

This composition remained until 1965 when the United States Mint switched to a clad composition.

Since 1965, dimes have been composed of a copper-nickel clad, with a pure copper core. This composition has a total weight of 2.268 grams. The outer layer of the coin is made up of 75% copper and 25% nickel. The copper core gives the coin its distinctive color.

For more information about the dimensions and composition of dimes, you can visit the official website of the United States Mint at www.usmint.gov

Weighing a Dime

When it comes to determining the weight of a dime, there are a couple of methods you can use. Whether you want to measure it precisely using a scale or estimate it based on its specifications, here is a detailed look at both options:

Using a Precision Scale

If you want to know the exact weight of a dime, using a precision scale is the way to go. These scales are designed to provide accurate measurements down to the gram. Simply place the dime on the scale’s platform and wait for the reading to stabilize.

Most precision scales have a built-in tare function, allowing you to deduct the weight of the container or tray holding the dime, giving you the true weight of the coin.

It’s worth noting that the weight of a dime can vary slightly depending on the mint where it was produced and the year it was minted. However, on average, a dime typically weighs around 2.268 grams. This weight is consistent across most dimes in circulation today.

Estimating Weight Based on Specs

If you don’t have access to a precision scale, you can estimate the weight of a dime based on its specifications. According to the United States Mint, a dime has a diameter of 17.91 millimeters and a thickness of 1.35 millimeters.

Using these measurements, you can calculate the approximate weight of a dime using the formula for the volume of a cylinder:

Weight = Volume x Density

Assuming the dime is a perfect cylinder, you can calculate the volume using the formula:

Volume = π x (radius)^2 x height

With the dime’s diameter and thickness, you can determine the radius and height. By plugging these values into the formula, you can estimate the volume. Multiplying the estimated volume by the density of the material, which is approximately 8.96 grams per cubic centimeter for the metal used in dimes, will give you an estimate of the weight.

While this method may not provide an exact weight, it can give you a rough idea of how much a dime weighs without the need for a precision scale.

For more information about coin specifications and weights, you can visit the United States Mint website.

Why Weight Matters

When it comes to coins, weight plays a significant role in various aspects. Understanding the weight of a dime is crucial for coin collectors, vending machine operators, and even for detecting counterfeits. Let’s take a detailed look at why weight matters in these different contexts.

For Coin Collectors

For coin collectors, the weight of a dime is an essential characteristic that helps determine its authenticity and value. Each coin has a specific weight assigned to it by the issuing authority. In the case of a dime, it should weigh precisely 2.268 grams.

Coin collectors use precision scales to accurately measure the weight of a dime and compare it with the standard measurement. Any significant deviation from the expected weight could indicate a counterfeit or a coin that has been tampered with.

Therefore, knowing the weight of a dime is crucial for coin collectors to ensure the integrity of their collections.

For Vending Machines

Vending machines rely on the weight of coins to determine their value and accept or reject them. The weight of a dime is crucial for vending machine operators as it helps ensure that the correct denomination is being used for purchases.

Vending machines are equipped with sensors that measure the weight of coins as they are inserted. If the weight of a dime falls within the acceptable range, the machine will accept it as a valid form of payment.

However, if the weight deviates significantly, the machine may reject the coin or register an error. Therefore, understanding the weight of a dime is essential for vending machine operators to maintain smooth and accurate transactions.

For Detecting Counterfeits

Counterfeiters often try to replicate coins with the intention of passing them off as genuine currency. One of the ways to detect counterfeit dimes is by examining their weight. Counterfeit coins are often made from different materials or alloys, which can result in a significant difference in weight compared to genuine coins.

By knowing the weight of a dime, individuals can identify potential counterfeits by simply measuring their weight. If a dime weighs notably more or less than the standard 2.268 grams, it could be a sign of counterfeit currency.

Therefore, understanding the weight of a dime is crucial for detecting counterfeit coins and protecting oneself from financial fraud.

Weighing Other Coins for Comparison

When it comes to understanding the weight of a dime, it can be helpful to compare it to the weights of other coins. Let’s take a look at the weights of a few other commonly used coins:


A penny, also known as a one-cent coin, weighs approximately 2.5 grams. It is composed of 97.5% zinc and 2.5% copper. Despite its small size and light weight, the penny has a rich history and remains an integral part of everyday transactions.


A nickel, or a five-cent coin, weighs around 5 grams. It is made of 75% copper and 25% nickel. The nickel is slightly larger and heavier than the penny, and its value is five times that of a penny.


Compared to the dime, the quarter is a larger and heavier coin. Weighing approximately 5.67 grams, the quarter is made of 91.67% copper and 8.33% nickel. It is worth 25 cents, making it the highest denomination among the commonly used coins.

Understanding the weights of these coins can provide a useful point of reference when trying to determine the weight of a dime. Keep in mind that these weights may vary slightly due to manufacturing processes and wear and tear.

If you want to explore more about the weights and compositions of different coins, you can visit trusted sources like the United States Mint or the Encyclopedia Britannica.


So in summary, a dime weighs exactly 2.268 grams based on its size, thickness, and copper-nickel composition. This specific weight is important for coin collectors, vending machines, and counterfeit detection.

The dime’s weight is also useful to compare against other coins like pennies, nickels, and quarters when discussing United States currency. Hopefully this guide gave you a thorough understanding of just how much a little dime weighs!

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