Crypto Options Calculator
Option payoff at expiry, the honest baseline: intrinsic value minus what you paid. Everything before expiry adds Greeks; everything after is exactly this arithmetic.
Results (live)
Estimates only, not financial advice. All math runs in your browser; nothing you type leaves this page.
How it works
call intrinsic = max(spot − strike, 0); put = max(strike − spot, 0)
P&L = (intrinsic − premium) × contracts
call break-even = strike + premium
Worked example
A $70k call bought for $2,500 with BTC expiring at $78k: $8,000 intrinsic minus premium is +$5,500. Below $72,500 at expiry the trade loses; below $70k it loses everything paid.
FAQ
Why is my option losing while price moved my way?
Time decay and falling implied volatility can outweigh a favorable move before expiry. At expiry only intrinsic value remains, which is what this shows.
What fraction of the premium can I lose?
All of it, and buyers frequently do. The capped loss is the feature; its high probability is the price of the cap.
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Estimates only, not financial, tax or investment advice. Verify numbers against your exchange or a professional before acting.