Money Visualiser - 3D Currency Comparison Tool

Money Visualiser

When you see bank heists in movies, the money always comes in neat, rectangular blocks. The props departments didn't invent that look. Banks actually organize cash using a strict three-tier hierarchy that dates back to the 1950s. They do this because counting loose bills securely at scale is an absolute nightmare.

A strap is exactly 100 bills of the same denomination, wrapped in a color-coded paper band. In the US, $1 bands are blue, $5 red, $10 yellow, $20 violet, $50 brown, and $100 mustard. A strap of $100 bills weighs about 100 grams. If you are counting cash, this is your base unit.

Put ten straps together and you get a brick. That is 1,000 bills, usually shrink-wrapped in tight plastic. A brick of $100s weighs about a kilogram and holds exactly $100,000. It looks and feels like a construction brick, making it easy to stack on pallets or fit into standard ATM cassettes.

Ten bricks make a bundle. That is 10,000 bills. A bundle of $100s weighs 10 kilograms and totals one million dollars. When central banks move currency around, they focus on bundles. Nobody counts individual bills at that level.

It all comes down to speed and catching mistakes. An experienced teller can count maybe 60 bills a minute accurately. Counting a thousand loose bills would take almost twenty minutes, with plenty of room for error. With straps, you just verify ten bundles of 100. It takes two minutes. Plus, if someone steals a whole brick from a vault, you notice immediately. Skimming loose bills from a giant pile goes completely unnoticed.

When I built MoneyVisualiser, I wanted the math to match reality. I dug through Federal Reserve guides and ECB documents to get the exact dimensions. Some countries don't even publish their standards, so I ended up reverse-engineering the sizes from banking supply catalogs. The code runs an algorithm to group your input into the largest possible denominations first, then stacks them into straps, bricks, and bundles. I set up InstancedMesh in Three.js so the browser doesn't crash when rendering big numbers.

The strap, brick, and bundle system works for the US, but things change overseas. Euro bills physically grow in size as the value goes up, so their stacks look completely different. Japanese banks wrap their yen in specific paper crosses. And if you look at countries that went through severe hyperinflation, like Venezuela, they stopped organizing it entirely. When you need a backpack full of cash to buy groceries, you just weigh it.

You can punch any amount into our tool and see exactly how many straps, bricks, or bundles it takes up. Type in $10,000 to see a single strap, or $1,000,000 to see a full bundle. Staring at the actual 3D footprint of a million dollars changes how you think about wealth.

How Many Bills in a Strap? Banking Cash Standards Explained

The Real System Behind the Movies

🏛️The Cash Hierarchy

Level 1: The Strap

ABA Standard Strap Colors

Level 2: The Brick

The "Brick" Anatomy

Level 3: The Bundle

Why Bother With This?

Building the Code

How Other Countries Do It

Try the Visualizer

Sources & References

Alp Yalay

See Money in 3D

Related Articles

Can a million dollars fit in a briefcase? (And what $1M actually looks like)

Polymer vs Paper: Why Currency Design Shapes Volume