21 Fun Facts About Money
Table of Contents
You may not stop to think about money because it’s such a big part of everyday life, but there are lots of fascinating facts about currency. Learning some interesting tidbits may change how you think about money and even come in handy the next time trivia night rolls around.
Read on for 21 fun facts about money.
Key Points
• Money facts can build understanding of our financial system and be fun to learn about and share.
• The highest bill denomination ever issued by the U.S. government was the $100,000 bill.
• Only 8% of the world’s currency is physical money.
• The U.S. Secret Service was originally founded to combat counterfeiting.
• A penny costs more to make than it’s worth.
Surprising Things You Probably Didn’t Know About Money
Maybe you already knew that only two non-presidents grace the front of U.S. bills (Alexander Hamilton on the $10 bill and Benjamin Franklin on the $100 bill). But did you know that our paper currency isn’t really made out of paper? And that no living person can appear on a U.S. coin or dollar bill? It’s true. Here, learn more intriguing money facts.
1. Each Dollar Amount Has Its Own Lifespan
Money doesn’t last forever, but some dollar bills have a longer life cycle than others.
According to the U.S. Federal Reserve, a $10 bill has the shortest lifespan, while a $100 bill has the longest. Here are the estimated lifespans of the different denominations:
• $1: 7.2 years
• $5: 5.8 years
• $10: 5.7 years
• $20: 11.1 years
• $50: 14.9 years
• $100: 24 years
2. A Banknote Can Be Folded 4,000 Times
Our currency is pretty durable. The Bureau of Engraving and Printing, the sole producer of U.S. paper currency, says it would take 4,000 double folds, forward and backward, for a dollar bill to tear. It might be because paper money isn’t actually made of paper. It’s actually a blend of 75% cotton and 25% linen, with tiny blue and red synthetic fibers of various lengths evenly distributed throughout the bill.
3. There’s a Reason US Dollars Are Green
Dollar bills weren’t always green. Colonial money, for example, was tan with black or red ink. It wasn’t until the Civil War that the government started using green ink to print paper money, which is how it got the name “greenbacks”. This color was selected because the ink didn’t fade or easily decompose, protecting against counterfeiting.
4. A Coin Can Last Around 30 Years
Coins stay in circulation for about 20-30 years, at which point they become too worn to use. The Federal Reserve then takes them out of circulation and melts them down to use for other purposes.
Recommended: How Do Federal Reserve Banks Get Funded?
5. The Highest Bill Denomination Issued by the US Was $100,000
Printed in 1934 and featuring President Woodrow Wilson, this $100,000 bill was a gold certificate currency that was never intended for public use, such as being deposited into a checking account. Instead, it was meant only for official transactions between Federal Reserve Banks. The last time this banknote was printed was in 1945, and it can’t be legally held by collectors.
6. A Penny Costs More to Make Than It’s Worth
The most recent report from the U.S. Department of the Treasury said it costs 3.69 cents to make a penny, up from 1.3 cents 10 years prior. Why the increase? Part of it could be the higher prices of copper and zinc, both of which were used to make pennies. Higher labor and overhead costs may also have been contributing factors.
The Treasury stopped producing new pennies in late 2025 due to the costs involved. However, pennies are still in circulation and recognized as legal tender.
7. Money Is Dirtier Than You Think
Both paper currency and coins can carry viruses and bacteria that live on the surfaces and easily transfer to your skin or onto other objects after touching it. Research has found physical currency can change hands numerous times a year. One recent study found banknotes made with cotton or linen fibers, such as U.S. dollar bills, provide bigger areas for germs and have the capacity to retain moisture, which can make it easier for bacteria to thrive.
8. The Dollar Sign Was First Used in 1785
Here’s another fun money fact: The official adoption of the dollar sign in the U.S. can be traced back to 1785, when it evolved from the Spanish symbol for pesos. It’s believed that the “$” originated from the abbreviation PS, which was used to indicate Spanish pesos in the Americas. Gradually, the “S” came to be written over the “P,” eventually morphing into the dollar sign we know today.
9. Martha Washington Is the Only Woman to Appear on a US Bill
America’s first First Lady, Martha Washington, is, to this day, the only woman to have her likeness appear solo on a U.S. paper currency note. Her image appeared on the $1 Silver Certificate, first issued in 1886 and discontinued in 1957. It was the country’s second-longest-issued paper money.
10. America Isn’t the Only Country That Uses the US Dollar
Besides the United States and its five inhabited territories, 11 countries in the world also use the U.S. dollar, the world’s reserve currency, as their official currency. These are the British Virgin Islands, Timor-Leste (or East Timor), Bonaire, Ecuador, El Salvador, Federated States of Micronesia, Marshall Islands, Republic of Palau, Sint Eustatius, Saba, and Turks and Caicos.
Recommended: Examining the Value of the U.S. Dollar
11. You Can Make Your Money Crisp by Ironing It
Ready for a surprising money fact that involves a little bit of fabric know-how? If you’ve got a creased, crumpled, or wrinkled dollar bill, you can make it look new by pressing it with your iron. As mentioned earlier, U.S. dollars are 75% cotton and 25% linen, so it’s actually fabric. To iron the money, dampen the dollar bill slightly with a spritz bottle, sprinkle water by hand, or use the spray function on the iron itself. Set the iron to a low heat, put a towel under the bill and another on top of it, then iron the money in a circular motion. Set aside to air dry. Presto! You should have a nice flattened bill, ready to stick in a gift card or slide into an ATM en route to your savings account.
Recommended: How to Write a Check
12. The Oldest Currency Still in Use Is the British Pound
The British pound dates back to 775 AD and was called the pound sterling, when Anglo-Saxon kings used silver pennies, or sterlings, as money. Today, this foreign currency is the fourth most traded in the foreign exchange market, after the U.S. dollar, the euro, and the Japanese yen.
Recommended: Here’s What You Can Do With Leftover Foreign Currency
13. There Are 1.2 Billion $2 Bills Still in Circulation
The first $2 bills were printed in 1862. Although they originally featured Alexander Hamilton, they were later redesigned to feature Thomas Jefferson. These bills are still in circulation (1.2 billion of them, in fact) and considered to be the rarest currency denomination in the U.S. Some people believed that $2 bills were bad luck, so they would rip off the corners of the bills to undo the curse, making them unusable.
14. The First Universal Credit Card Was Introduced in 1950
Credit cards originated in the U.S. back in the 1920s, but they were issued by individual firms, such as oil companies and hotel chains, to their customers specifically for purchases made at company outlets. It wasn’t until 1950 that Diners Club founders Ralph Schneider and Frank McNamara issued a card that could be used at a variety of establishments. The Diners Club card sparked the modern credit card era. Others soon followed, including American Express, which debuted its card in 1958.
Recommended: 10 Credit Card Rules You Should Know
15. There’s an ATM on Every Continent on Earth
One interesting money fact involves how we access it. There are nearly three million cash machines around the world today. You can get or deposit cash at ATMs in the most remote of places, including Easter Island and McMurdo Station in Antarctica.
16. The Secret Service Originally Fought Counterfeiting
Today we typically think of the U.S. Secret Service as protecting certain political leaders, including the president and vice president and their immediate families. But the agency was originally founded for a very different reason. By the end of the Civil War, fake money was a significant problem, with nearly one-third of all U.S. paper currency in circulation being counterfeit. As a result, the financial stability of the country was in jeopardy, so in 1865, the Treasury Department established the Secret Service to suppress counterfeiting. The agency didn’t start protecting presidents until 1901, after the assassination of President William McKinley.
17. Most Americans Hoard Their Spare Change
One landmark survey by MyBankTracker.com found that 55.5% of people do nothing with the loose change they’ve accumulated. Interestingly, 60.3% of male respondents said they’re more likely to leave their extra coins untouched compared to 51% of female respondents.
Recommended: 7 Tips to Managing Your Money Better
18. Only 8% of the World’s Currency Is Physical Money
Interesting money fact: With mobile banking and electronic payments becoming more and more common, people are earning and spending money without having to even touch it. Economists estimate that only 8% of the world’s currency is physical cash, with the rest existing on computer hard drives in electronic bank accounts.
19. Coins Didn’t Always Say “In God We Trust”
The original American penny, reportedly designed by Benjamin Franklin, features a motto he popularized: “Mind your business.” The message wasn’t telling people not to be nosy. Instead, it was a literal instruction about business and commerce, meaning staying focused on your livelihood.
20. US Airports Make Big Money From Loose Change
According to the Department of Homeland Security, airline passengers leave behind thousands of dollars in coins each year at U.S. airport screening checkpoints. In 2023, the most recent year studied, the Transportation Security Administration collected almost $1 million in unclaimed money (mostly coins) from passengers who emptied their pockets while going through the security line. These funds get deposited into a special fund so that collection and spending can be easily tracked.
21. This Century Is Transforming Money
Online banking has recently transformed how people manage their personal finances, and technology continues to alter how money is handled. New ways to pay for things continue to rise in popularity, including mobile payment technology such as Venmo, PayPal, and Google Pay.
Approximately 60% of people worldwide use mobile or digital wallets.
The Takeaway
Learning fun facts about money reveals that there’s more to it than its face value. Finding out some fascinating money trivia might even change the way you think about it. These facts can enrich your understanding of the history of our currency system, how it’s evolving, and its place in the global market.
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FAQ
How long does paper money stay in circulation?
The lifespan of paper money depends on its denomination. Five-dollar bills last just 5.8 years in circulation, while fifty-dollar bills last 14.9 years.
Why was the penny discontinued?
Penny production was suspended because the cost of making the coins surpassed the face value of the coin. Reasons for discontinuing the one-cent coin include increased labor costs and higher costs for raw materials.
Where does the dollar sign come from?
The dollar sign ($) derives from the abbreviation for the Spanish peso, PS. Over time, the two letters were drawn on top of each other and shortened into the dollar sign used today.
Photo credit: iStock/bob_bosewell
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