What Is a Satoshi?

You've heard of Bitcoin. You know it's worth a lot. You've maybe even checked our BLT Price Index and thought, "I can't afford 8,000 sandwiches worth of anything."

Good news: you don't have to buy a whole Bitcoin. You can buy a piece of one. The smallest possible piece, in fact, is called a satoshi.

The Short Answer

A satoshi (often shortened to "sat") is the smallest unit of Bitcoin. One Bitcoin can be divided into 100,000,000 satoshis. That's one hundred million.

Think of it this way:

The unit is named after Satoshi Nakamoto, Bitcoin's pseudonymous creator. Nobody knows who Satoshi actually is, but their name is now permanently attached to the smallest possible fraction of the thing they invented. That's a legacy.

Satoshis and Sandwiches

If a Bitcoin is a whole BLT sandwich — bacon, lettuce, tomato, toasted bread, the works — then a satoshi is a single crumb. Not a slice of bacon. Not a leaf of lettuce. A crumb.

One hundred million crumbs make a sandwich. That sounds absurd until you remember that 100 pennies make a dollar, and nobody thinks pennies are weird. Satoshis are just Bitcoin's pennies. Except there are a lot more of them.

At today's prices, here's roughly what satoshis buy in BLT terms:

The exact numbers shift with Bitcoin's price. Check the live BLT Price Index for today's count.

Why Satoshis Exist

Here's the problem: Bitcoin got expensive. When one coin costs six figures, saying "I own 0.00043 Bitcoin" feels like saying "I ate 0.00043 of a sandwich." Nobody talks like that. It's confusing, it's ugly, and it makes normal people feel like they're too late to the party.

Satoshis fix this. Instead of "I own 0.00043 BTC," you say "I own 43,000 sats." That sounds like something. Because it is something. 43,000 of anything feels more real than 0.00043 of something.

It's the same reason you order "a sandwich" and not "0.012% of the diner's daily output." Units matter. Satoshis make Bitcoin feel human-sized again.

"Stacking Sats"

You'll hear this phrase in Bitcoin circles. "Stack sats" means buying small amounts of Bitcoin regularly — accumulating satoshis over time rather than trying to buy a whole coin at once.

It's the Bitcoin equivalent of putting aside a few dollars from every paycheck. Except instead of dollars, you're collecting the world's smallest sandwich crumbs and hoping they eventually add up to a whole BLT. Or several thousand.

Many Bitcoin apps and exchanges now let you buy as little as $1 worth of Bitcoin at a time. At current prices, that gets you roughly 1,000 sats. Not enough for a sandwich. But it's a start.

Quick Questions, Honest Answers

Can you send just 1 satoshi?

On the main Bitcoin network, transaction fees would make this impractical — like paying $5 shipping for a single crumb. On the Lightning Network (a faster layer built on top of Bitcoin), sending tiny amounts of sats is cheap and nearly instant.

Will there ever be something smaller than a satoshi?

There's been discussion about it. The Lightning Network already works with "millisatoshis" (thousandths of a sat) internally. But on the base layer, 1 sat is the floor. You can't get crumbs smaller than crumbs.

How many satoshis exist in total?

Since there will only ever be 21 million Bitcoin, the total supply of satoshis is capped at 2.1 quadrillion. That's 2,100,000,000,000,000. Enough crumbs to build a lot of sandwiches.

The Bottom Line

A satoshi is the smallest unit of Bitcoin. There are 100 million of them in every coin. They make it possible to own, send, and think about Bitcoin in amounts that actually make sense to a human brain.

You don't need to buy a whole Bitcoin any more than you need to buy an entire diner. Start with a crumb. See how it tastes. Stack from there.

And if you want to know exactly how many crumbs make a sandwich at today's prices — well, we wrote about that too.

Stay crispy. Stay curious. Stack accordingly.