Can you buy part of a bitcoin?
You don't need tens of thousands of dollars to own bitcoin. Here's what a small purchase gets you.
Yes. One bitcoin divides into 100 million units called satoshis, and most exchanges let you buy as little as a few dollars' worth. You don't need to buy a whole bitcoin. Just watch the fees, which can take a big bite out of very small purchases.
How small can you go?
The smallest unit of bitcoin is one satoshi, or 0.00000001 BTC. Exchanges set their own minimums, often a few dollars. Here's what a purchase buys at an example price of $100,000 per bitcoin:
| You spend | Bitcoin (before fees) | In satoshis |
|---|---|---|
| $10 | 0.0001 BTC | 10,000 sats |
| $100 | 0.001 BTC | 100,000 sats |
| $1,000 | 0.01 BTC | 1,000,000 sats |
Use the unit converter with today's bitcoin price for exact figures.
Fees bite harder on small buys
Some apps charge a flat minimum fee. A $1.99 fee on a $10 purchase is about 20% gone before the price moves. Bank-transfer purchases on an exchange's regular trading screen are usually cheaper than card purchases or instant-buy buttons. Check with the true cost calculator.
Is a fraction "real" bitcoin?
Yes. 0.001 BTC is just as much bitcoin as 1 BTC, only less of it. It gains or loses value by exactly the same percentage. Prices are quoted per whole coin purely by convention. A spot Bitcoin ETF is another way to buy a small amount, through a stock brokerage.
Frequently asked questions
Can you buy $10 of bitcoin?
Yes, on most exchanges and apps. Check the fee first; flat fees make small purchases expensive.
How many satoshis are in a bitcoin?
100,000,000.
Do I need to buy a whole bitcoin?
No. Almost everyone who owns bitcoin owns a fraction of one.
Where to next
Sources
Written for beginners and checked against the sources listed. Last reviewed October 26, 2026. This page is educational and is not financial, tax or legal advice. How we write and check pages.