Bitcoin to US Dollar
Calculate how much bitcoin (BTC) is worth in US dollars. The BTC/USD rate fluctuates continuously — our tool shows the live market rate. Bitcoin is the world's largest cryptocurrency by market capitalisation, and the dollar pairing is the most widely traded crypto pair globally.
Frequently asked questions
The BTC/USD rate is set by supply and demand on cryptocurrency exchanges worldwide, including Coinbase, Binance, and Kraken. No central bank or government controls the price. News about regulation, institutional adoption, macroeconomic conditions, and social media sentiment can all drive significant price moves within hours.
Bitcoin has a fixed maximum supply of 21 million coins and a relatively small market capitalisation compared with traditional currencies. This makes it susceptible to large price swings. A single large institutional trade, a regulatory announcement, or a shift in market sentiment can move the price by double-digit percentages in a single day.
Yes. HMRC treats bitcoin as a capital asset. If you sell, exchange, or otherwise dispose of bitcoin at a profit, you may owe Capital Gains Tax. There is an annual CGT allowance, and rates depend on your income tax band. HMRC's cryptoassets manual provides detailed guidance — consult a tax adviser for your specific situation.
Prices are broadly consistent across major exchanges because arbitrageurs rapidly close any significant gaps. Small differences — the "spread" — exist between platforms, and some exchanges add trading fees on top. The converter uses a representative market rate.