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Data
Live dataAn overview of Bitcoin and the forces that affect your purchasing power. Price, market cap, US inflation and price history are fetched live; purchasing power is shown as an example.
Price via CoinGecko, network via mempool.space, inflation via the World Bank, updated continuously.
Bitcoin's issuance is predetermined. The most striking part: after about 17.5 years, already 95.5% of all bitcoin have been created, but the very last ones aren't created until around the year 2140, in about 113 years.
Bitcoin's age
17.5 years
since 3 January 2009
Share issued
95.5%
20,050,843 of 21,000,000 BTC
Left to mine
949,157 BTC
of 21,000,000 BTC total
All issued (approx.)
year 2140
in about 113 years
Block reward now
3.1250 BTC
halves every four years
New supply per day
≈ 450 BTC
Price at each year-end, in USD. Illustrates the long run.
Convert between dollars and satoshis.
≈ 0.00838125 BTC
Calculated on the current price of $59,657 per bitcoin.
The world's combined value split across major assets. It puts Bitcoin's size in perspective. The largest companies are shown as part of the stocks total, so you can see how each stacks up against Bitcoin.
How a daily buy grows over time, the amount invested compared with its value today. The value is calculated against historical BTC prices in USD.
Roughly every four years the block reward is halved. See the live countdown, block time, history and why the halving date can only be estimated.
How regular saving grows
$100 to $10,000
1 to 30 years
Total deposited
$60,000
At today's price
100,574,953 sats
≈ 1.0057 BTC
Shows how much you put in and how many sats it equals at today's price. The price moves up and down — this is not a forecast of future value.
Change in US consumer prices (CPI). High years are marked in orange.
The number of dollars in your account doesn't tell the whole story. What shapes your everyday life is how far they go. When the price level rises, the same amount buys less — that's why we measure saving in purchasing power, not just in figures. Money with a limited supply has historically held its purchasing power better than money whose quantity keeps growing.
Price, market cap, supply, network data, US inflation (World Bank) and price history are fetched live. My Bitcoin journey is calculated on a daily buy against historical prices. This is not financial advice.
at ~144 blocks per day
Almost all bitcoin are created early: we've passed ~13% of the time but ~95% of the supply is already here.
Supply inflation
0.82%
per year now, falling toward zero
Time to double the supply
≈ 122 years
at today's new issuance (stock-to-flow)
Your share if everyone split equally
0.0026 BTC
≈ 259,259 sats per person
With 21 million bitcoin and ~8.1 billion people there's only a tiny fraction per person. Scarcity increases with every halving: new issuance shrinks while demand can grow.
of which the largest companies:
Live · mempool.space
Fee per virtual byte right now. Lower fee = longer wait.
Fear & Greed index
11
Extreme fear
Measures the market's mood from 0 (extreme fear) to 100 (extreme greed). It's a sentiment reading, not a buy or sell signal.