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Gradually, Then Suddenly
Unisex tee · XS–3XL
$39.99
Hover to zoomOne Bitcoin 100,000,000 Sats T-Shirt
$39.99
An orange abacus above ONE BITCOIN and 100,000,000 SATS, a plain-math tee for people who like their units exact.
- Unisex tailored fit, sizes XS–3XL
- Free US shipping over $75, $4.99 below
- 30-day size exchanges on unworn tees
About this design
An orange outline abacus with a rectangular frame, parallel rods and round beads sits above ONE BITCOIN and 100,000,000 SATS in two lines of bold white capitals, with the number set larger. There is no Bitcoin symbol on this design.
Fabric, fit & print
| Material | Airlume combed & ring-spun cotton |
|---|---|
| Fit | Unisex tailored crew neck |
| Printed to order | |
| Sizes | XS, S, M, L, XL, 2XL, 3XL |
| SKU | BC-HUNDREDSATS |
Shipping & exchanges
Ships in 3–4 business days, tracked. See the shipping policy and returns & exchanges.
The story
Behind the 100,000,000 Sats tee
Some bitcoin shirts shout. This one just does the arithmetic. An old-fashioned abacus sits over one whole bitcoin expressed in sats, which is about as friendly as a math lesson gets.
Bitcoin divides down to eight decimal places. The smallest piece, 0.00000001 BTC, is called a satoshi, or sat for short, so one whole bitcoin is exactly 100,000,000 sats. The unit is named after Bitcoin's pseudonymous creator, and the figure is built into the software itself: Bitcoin Core defines one coin as 100,000,000 of its base units. Counting in sats is how many people now keep score.
Wear it to a meetup, a coffee run or the office on casual day. The abacus and the round number make it a conversation starter that needs no explanation if someone asks, because the shirt already gives the answer.
Questions
About this design
Is it really exactly 100,000,000 sats in one bitcoin?
Yes. A bitcoin can be split into eight decimal places, and the smallest step is one sat. That makes 100,000,000 sats per coin, a fixed ratio written into Bitcoin's software. It never changes, no matter what happens to the price of a coin.
Why an abacus instead of a calculator or a coin?
An abacus is one of the oldest counting tools and it shows place value with beads on rods. That suits a shirt about splitting a coin into a hundred million parts. It also keeps the drawing simple, friendly and free of the usual coin imagery.
Who is this shirt a good gift for?
It suits the friend who already counts in sats, the engineer who likes round numbers, or a newcomer who just learned that you can own a small slice of a coin. The message is neutral and tidy, with no jargon beyond the single word sats.
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100,000,000 Sats$39.99