Are Your Old Bitcoin Buys Still Profitable? How to Calculate Crypto Profit on Past Purchases
Bitcoin has spent a significant stretch trading below $70,000 — and if you bought during previous rallies, you might be wondering whether your old positions are still in the green. Knowing how to calculate crypto profit on past purchases is essential before making any new trading decisions.
Bitcoin has spent a significant stretch trading below $70,000 — and if you bought during previous rallies, you might be wondering whether your old positions are still in the green. Knowing how to calculate crypto profit on past purchases is essential before making any new trading decisions. Here’s how to check your numbers clearly.
How Crypto Profit Calculation Works for Old Buys
Profit or loss on any crypto trade comes down to one simple comparison: what you paid versus what it’s worth now. The formula is straightforward — subtract your entry price from the current price, divide by the entry price, and multiply by 100 to get your percentage gain or loss.
If you bought BTC at $45,000 and it’s currently trading at $66,500, your profit is roughly 47.8% — even though Bitcoin is below $70,000.
A BTC purchase at $45,000 against a current price of $66,500 yields approximately 47.8% unrealized profit — demonstrating that Bitcoin being “below $70K” is irrelevant to your actual P&L.
The challenge most investors face is that they’ve made multiple purchases at different prices over time. That makes it harder to know at a glance whether you’re actually profitable overall.
Realized vs Unrealized Profit: Know the Difference
When checking whether your old buys are profitable, it’s important to understand two types of profit.
Unrealized Profit (Paper Profit)
Unrealized profit is the gain or loss on crypto you still hold. You haven’t sold yet, so the profit only exists on paper — it can increase, decrease, or disappear entirely before you exit the position.
Realized Profit
Realized profit is what you’ve actually locked in by selling. This is the figure that matters for tax purposes and for understanding your true financial position.
Unrealized profit moves with the market and is not guaranteed until you sell. Realized profit is the only number that affects your actual cash balance and your tax bill. Keep these two figures separate when reviewing your accounts.
Why This Distinction Matters Right Now
With Bitcoin below $70,000, many investors who bought during the 2021 or early 2024 peaks may be sitting on unrealized losses — but those who bought earlier in previous cycles could still hold significant unrealized gains. Until you sell, the number keeps moving.
A large unrealized gain on old Bitcoin buys can shrink rapidly during a market downturn. Don’t factor paper profit into spending decisions or new position sizing until you’ve sold and locked it in.
How to Check if Your Old Bitcoin Buys Are Still Profitable
Follow these steps to get a clear picture of your crypto profit or loss position:
- List every purchase — date, amount of crypto, and price paid per coin
- Calculate your average cost basis — total amount spent divided by total coins held
- Compare to current price — if the current price is above your average cost basis, you’re in profit
- Account for fees — exchange fees reduce your effective profit, so factor them into every calculation
Here’s a simple example of how different entry points look against a current Bitcoin price of $66,500:
| Entry Price | Amount Invested | Current Value | Profit / Loss |
|---|---|---|---|
| $20,000 | $1,000 | $3,325 | +232.5% |
| $45,000 | $1,000 | $1,478 | +47.8% |
| $69,000 | $1,000 | $964 | −3.6% |
| $73,000 | $1,000 | $911 | −9.0% |
As the table shows, profitability is entirely determined by your entry price — not by where Bitcoin is trading relative to any headline level like $70,000. Two investors holding BTC today can have completely opposite P&L positions based solely on when they bought.
Conclusion
Bitcoin trading below $70,000 doesn’t automatically mean your old buys are at a loss — it depends entirely on your entry price and cost basis. Understanding your crypto profit position clearly is the first step to making smarter decisions going forward.
Use our free Crypto Profit Calculator to check your exact profit or loss on any purchase — no login needed.
