What Is a Sat?

One of the most common misconceptions about Bitcoin is that you have to buy a whole one.

You don’t. Not even close.

Bitcoin is divisible into 100 million smaller units. Each one is called a satoshi — a sat for short, named after Bitcoin’s creator. One Bitcoin equals 100,000,000 satoshis.

This means you can own real Bitcoin for a few dollars. Someone can send 1,000 sats as a tip. A fraction of a fraction still has real value.

Think of it like this: nobody says “I can’t use dollars because a house costs $400,000.” Dollars are divisible into cents. Bitcoin is divisible into sats — just far more precisely.

As Bitcoin’s price grows over time, this divisibility becomes more important, not less. If one Bitcoin were ever worth $1 million, a single sat would be worth one cent — still perfectly usable for small everyday transactions.

The sat framing changes how people think about it. Instead of “how much of a Bitcoin can I afford?” the question becomes “how many sats could I stack over time?” — a very different feeling.

1,000 sats. 10,000 sats. 1,000,000 sats. Each one a real piece of a fixed supply of 2.1 quadrillion satoshis total — the smallest units of the scarcest money ever created.

No whole Bitcoin needed. Most people are surprised how low the starting point actually is.

Tomorrow: what happens when you compare Bitcoin’s fixed supply to every currency ever printed.

— The Daily Bit