How is the savings plan counted?

One buy at every month end at that day's close, for the number of years you choose. Everything bought is then valued at the latest close. The number of buys and the total paid in are shown next to the result.

Why S&P 500 and gold prices from SPY and GLD?

They are the two most traded funds tracking the index and the metal, with a daily close going back to 2010. Prices only, dividends not included, so the stock number is slightly lower than a total-return figure.

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What if

What if you had bought bitcoin, gold or the S&P 500?

Q: What would $1,000 in bitcoin be worth today?

Pick bitcoin and a starting point above. The page divides today's close by the close on that day, from a daily record we keep since 2010, and shows the dates and prices it used.

One buy years ago, a monthly plan, or the price of a coffee a day. Every result on this page is counted from daily prices we keep ourselves since 2010, and the exact dates and prices it used are printed under the number. Latest price on file: 25 September 2026 (bitcoin 25 September 2026).

Amount

Into

Years ago

Worth today

$1,966

$1,000 in bitcoin 5 years ago is $1,966 today, 1.97× the money.

Counted with: close on 25 September 2021 $42,742 → close on 25 September 2026 $84,039.

How every number here is counted

One-time buy: today's close divided by the close on the first trading day on or after the date that many years ago, times your amount. Monthly plan: one buy at every month end at that day's close, for as many months as you chose, everything valued at the latest close. A day's spend: the daily amount times 365, divided by 12, put into the monthly plan for all three assets at once, next to the same total simply spent.

The S&P 500 and gold are counted through SPY and GLD, the two most traded funds tracking the index and the metal, with a daily close back to 2010. Prices only, no dividends, so the stock figure is a little lower than a total-return number would be. Bitcoin is a cross-exchange price for the whole day in dollars, not one venue's closing trade. There are no fees, taxes or spreads in any of these numbers, and every one of them is a look back, not a look forward.

Same money, same months, three doors. The point is not which door, it is the size of the gap between spending a small amount and putting the same small amount somewhere, counted rather than guessed.

Questions people ask

What would $1,000 in bitcoin be worth today?

Pick bitcoin and a starting point in the first calculator. The page divides today's close by the close on that day and prints both dates and both prices under the result.

Why month-end buys for the savings plan?

Because it is the one rule that needs no judgement. The last close of every month, whatever the price was, for every asset alike.

Can I use a date instead of “years ago”?

Add ?date=2017-12-17 to the address and the one-time buy starts from that day instead. Shared links keep whatever you set.

Where do the numbers come from?

Bitcoin from CoinGecko and our own daily log, SPY and GLD from Twelve Data, kept in a record we update every day. The page reads that record in your browser, so it always shows the latest close on file. Not financial advice.