Satoshi ↔ Bitcoin Converter

Convert amounts between Bitcoin (BTC) and satoshi in the browser, with 8 decimal places of precision. Useful for Lightning invoices, mining fees, and on-chain amounts.

How to use

1. Enter a value in BTC or in satoshi.
2. The other field updates in real time.
3. Use the on-page examples to check common orders of magnitude.

Formula

The satoshi is Bitcoin’s standard smallest unit:

• 1 BTC = 100,000,000 satoshis
• 1 satoshi = 0.00000001 BTC

Examples:

Frequently asked questions

How many satoshis are in 1 Bitcoin?

Exactly 100 million (10⁸). That ratio is fixed by the protocol.

Does this tool fetch a fiat price?

No. It only converts units (BTC ↔ sats). There is no market price or FX rate.

Can I use it for Lightning amounts?

Yes. Many Lightning invoices and fees are quoted in satoshis; conversion helps read the BTC equivalent.

Privacy

All calculation runs locally in your browser. No amounts are sent to a server.