Bitcoin ETF Calculators
Convert Bitcoin ETF shares to their exact Bitcoin equivalent, calculate options strike prices in BTC terms, and see how your investment would have performed over time. These calculators use live data from fund holdings disclosures, updated daily. Select an ETF below to get started, or use the performance calculator to model historical returns.
What These Calculators Do
Each Bitcoin ETF holds a slightly different amount of Bitcoin per share — the BTC-per-share ratio. This ratio determines how many shares you need to equal one full Bitcoin, and it's the key to converting between ETF positions and Bitcoin values. Our calculators apply this ratio to give you precise conversions for shares, dollar amounts, and options strike prices. The ratios decrease slowly over time as each fund deducts its expense ratio from holdings.
Performance Calculator
Want to see what your money would be worth if you'd invested on a specific date? Our performance calculator shows total return, CAGR, max drawdown, and a side-by-side comparison with the S&P 500.
Covered Call Calculator
Selling covered calls on IBIT or another Bitcoin ETF? See every metric in both USD and BTC — break-even in Bitcoin terms, max profit in BTC, annualized yield, and an interactive payoff diagram with dual axes.
Bitcoin to IBIT Calculator
Going the other direction? Convert any Bitcoin amount to IBIT shares using the live BlackRock ratio. See how many shares your BTC is worth and what they would cost at the current IBIT price.
Available Calculators
How to Use
Select any of the six spot Bitcoin ETFs above to open its dedicated calculator. Enter a dollar amount or number of shares to see the BTC equivalent. For options traders, enter a strike price to see what it implies about Bitcoin's price. All data updates automatically from fund filings and market feeds.
FAQ
Which Bitcoin ETF calculator should I use?
If you hold a specific ETF, use that fund's calculator. If you're comparing ETFs, start with our comparison hub which shows all six side by side.
How often does the data update?
BTC-per-share ratios and market prices update daily from fund holdings disclosures and market data feeds.
What is the BTC-per-share ratio?
It's the amount of Bitcoin that backs each share of an ETF. For example, one IBIT share represents approximately 0.000568 BTC. This ratio decreases slowly over time as the fund's expense ratio is deducted from holdings.
Not sure which fund to use? Our Best Bitcoin ETF in 2026 guide covers fees, liquidity, and options depth for all 12 spot ETFs.