Calculator
What if I bought bitcoin…
Pick a month and an amount. Hindsight is 20/20.
Price then
$390
BTC bought
2.56410256
Price now
$83,618
Worth today
$214,405
That's a 214.4× change. Price source: Bundled data (latest monthly close)
BTC price data: Kraken public OHLC API (XBT/USD, 15-day candles; last close observed in each month), fetched 2026-10-13 (Kraken OHLC API docs). Coverage 2013-09 to 2026-10, bundled so it works offline. Monthly closes are approximate. Past performance does not guarantee future results. Not financial advice.