Bitcoin Calculator
Convert between Bitcoin (BTC), satoshis, mBTC, US Dollars, and Euros instantly. Prices update automatically every 60 seconds using live market data.
Conversion
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Frequently Asked Questions
How many satoshis are in one Bitcoin?
One Bitcoin (BTC) contains exactly 100,000,000 satoshis (sats). A satoshi is the smallest unit of Bitcoin on the main blockchain, named after Bitcoin's pseudonymous creator, Satoshi Nakamoto.
What is the current price of Bitcoin?
This calculator fetches the live Bitcoin price from CoinGecko every 60 seconds. The price shown is an aggregate across major exchanges. Actual buy/sell prices on a specific exchange may differ slightly due to spreads and liquidity.
What is mBTC?
mBTC (millibitcoin) equals 0.001 BTC, or 100,000 satoshis. Some wallets and exchanges display amounts in mBTC for readability when dealing with smaller amounts of Bitcoin.
Can I use this calculator offline?
The converter works offline for BTC/sats/mBTC conversions since those are fixed ratios. However, USD and EUR conversions require a live price feed, so they will use the last known price if you lose connection.