What if you had invested in bitcoin?
It is the question everyone asks once the price has moved: what would my money be worth now if I had bought bitcoin back then? This calculator answers it for any amount, any coin and any two dates. Enter what you would have invested, the buy date and the price that day, and the price on the end date (today’s price for “worth now”). You get the coins you would have bought, their value, the profit or loss, the money multiple and the annualised return (CAGR), with optional buying and selling fees.
If you have a price history — a CSV export from an exchange or a charting site — paste it instead. The page then looks up the price on each date by itself, shows what the same amount would be worth if invested 1, 2, 3, 5 or 10 years before the end date, and compares the lump sum with buying a slice every month.
No prices are built in or downloaded. We checked the common free sources and their terms do not allow bundling their price history (one is licensed for non-commercial use only, another forbids redistribution), so the prices are always yours. Everything is calculated in your browser, and it is not investment advice.
How to use the Bitcoin Investment Calculator
- Enter the amount invested, the currency and, if you like, the coin and a buying fee.
- Pick the buy date and type the price on that date — the daily close from any price chart.
- Pick the end date and type the price then; use today’s date and price to see what it is worth now.
- Or choose Paste a price CSV, paste dated prices, and leave the end date blank to use the latest row.
- Read the value, profit, multiple and CAGR — and, with a CSV, the 1-to-10-year table and the monthly DCA comparison.
Bitcoin Investment Calculator features
Any two dates
Works for bitcoin or any coin or asset, in dollars, rupees, pounds, euros or USDT.
CAGR, not just profit
The annual growth rate that turns the amount into the value over the exact number of days.
Fees in and out
A buying fee reduces the coins; a selling fee reduces the value and raises the break-even price.
CSV lookup
Header detection for Date and Close columns, Unix timestamps, and the previous close for missing days.
Years-before and DCA
The same amount invested 1–10 years earlier, and the same total spread over monthly buys.
The formulas
Coins bought = amount × (1 − buying fee) ÷ buy price. Value = coins × end price × (1 − selling fee). Profit = value − amount, and the multiple is value ÷ amount. The annualised return is CAGR = multiple1 ÷ years − 1, with years = days between the dates ÷ 365.25.
Worked example: 1,000 dollars at 10,000 per coin buys 0.1 BTC. At 50,000 four years later (1,461 days) it is worth 5,000 dollars: a 4,000 profit, 5× the money, and a CAGR of 51/4 − 1 = 49.53% a year. With a 1% fee on the way in and out, the coins drop to 0.099 and the value to 4,900.50.
Getting prices, and reading the result
- Use closing prices. Bitcoin trades around the clock; most charts give a daily close in UTC. Different sites can differ by a few percent on the same day.
- Exports work as they are. A CSV with a header such as Date, Open, High, Low, Close uses the Close column; without a header the second column is the price.
- Start dates matter enormously. Bitcoin has had several falls of more than 70%, so the result can change completely if the buy date moves by a few months — the years-before table shows that spread.
- Monthly DCA splits the same total into equal buys on the same day each month, which shows whether spreading the purchase would have helped or hurt over that window.
Related calculators
For regular buys over your own price series use the DCA calculator; for a single trade with tax in India, the crypto profit calculator. The CAGR calculator works for any investment, and the bitcoin power law calculator shows one popular long-term trend model — a model, not a forecast.
Bitcoin Investment Calculator FAQ
What if I had invested $1,000 in bitcoin 10 years ago?
Divide 1,000 by the price on that date to get the coins, then multiply by today’s price. Paste a price history and the table here shows 1, 2, 3, 5 and 10 years before your end date at once.
Where do I find bitcoin’s price on a past date?
Any price chart or exchange shows historical daily closes, and many let you download them as CSV. Type the close for your date, or paste the file here.
Why doesn’t this page include bitcoin’s price history?
The free price sources we checked do not permit redistributing their data in another website, so the page asks you for the prices instead of copying them.
What is CAGR?
The compound annual growth rate: the steady yearly return that would turn your amount into the final value over the same time. It is far lower than the total return over several years.
Does it include taxes?
No. Add buying and selling fees; taxes depend on your country and situation.
Is this investment advice?
No. It shows what past prices you enter would have meant. Crypto prices are volatile and past returns do not predict future returns.