What if I'd bought Bitcoin? | FOMO calculator

“What if I'd bought Bitcoin?” calculator

Last updated: December 16, 2025

Bitcoin has gone from a niche experiment to a global, free-market monetary asset with a price history that rewards patience. This tool lets you pick a purchase date, enter an amount in your chosen currency, and see how that position would have performed over time.

💰 “What if I'd bought Bitcoin?”

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Enter amount to start

How it works

Enter an amount, then pick a purchase date and a valuation date. The calculator fetches the Bitcoin price on your purchase date, determines how much BTC you could’ve bought, and tracks the value of that purchase forward to your valuation date (which defaults to today).

You’ll see two key results above the chart:

Note that the price history goes back to 2014, that being the time at which we started having reliable market data.

Why it’s useful

Backtesting isn’t just about FOMO. It helps you understand Bitcoin’s behaviour across different market cycles and time horizons, and to visualize consolidation phases and major breakouts. It highlights how entry timing affects outcomes and shows how consistently Bitcoin has outperformed despite periodic turbulence - the kind of perspective that gets lost when focusing only on short-term price noise.

Bitcoin is still young, still monetising, and still absorbing global demand for a finite digital bearer asset. Exploring “what if” scenarios is a straightforward way to study that trajectory without spreadsheets or guesswork.