{"id":39527,"date":"2025-08-07T15:32:29","date_gmt":"2025-08-07T13:32:29","guid":{"rendered":"https:\/\/www.coinpro.ch\/uncategorized\/21-million-bitcoin-all-about-the-magic-number-in-the-bitcoin-universe\/"},"modified":"2026-04-25T10:47:16","modified_gmt":"2026-04-25T08:47:16","slug":"21-million-bitcoin-all-about-the-magic-number-in-the-bitcoin-universe","status":"publish","type":"post","link":"https:\/\/www.coinpro.ch\/en\/bitcoin-en\/21-million-bitcoin-all-about-the-magic-number-in-the-bitcoin-universe\/","title":{"rendered":"Bitcoin Supply: Why There Are Only 21 Million BTC"},"content":{"rendered":"<div data-test-render-count=\"1\">\n<div class=\"group\">\n<div class=\"contents\">\n<div class=\"group relative relative pb-3\" data-is-streaming=\"false\">\n<div class=\"font-claude-response relative leading-[1.65rem] [&amp;_pre&gt;div]:bg-bg-000\/50 [&amp;_pre&gt;div]:border-0.5 [&amp;_pre&gt;div]:border-border-400 [&amp;_.ignore-pre-bg&gt;div]:bg-transparent [&amp;_.standard-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [&amp;_.standard-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8 [&amp;_.progressive-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [&amp;_.progressive-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8\">\n<div>\n<div class=\"standard-markdown grid-cols-1 grid [&amp;_&gt;_*]:min-w-0 gap-3 standard-markdown\">\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Why Are There Exactly 21 Million Bitcoin? Is the Supply Really Limited? And What Happens When All Bitcoins Are Mined? In this article, you&#8217;ll learn everything about the maximum Bitcoin supply, the technical foundations behind it, and why the limit is so crucial for Bitcoin&#8217;s value.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>Is the Number of Bitcoins Really Limited?<\/h2>\n<p>Yes. The number of <a href=\"\/bitcoins\">Bitcoins<\/a> is capped at a maximum of <strong>21 million<\/strong>. This upper limit is hardcoded into the Bitcoin protocol and cannot be changed. Unless the entire network agrees to a change, which is highly unlikely.<\/p>\n<p><a href=\"https:\/\/www.coinpro.ch\/en\/bitcoin-en\/satoshi-nakamoto-the-bitcoin-inventor-what-do-we-know-what-dont-we\/\">Satoshi Nakamoto<\/a> deliberately designed Bitcoin as a deflationary currency. Unlike <a href=\"https:\/\/www.coinpro.ch\/en\/glossary\/fiat-money\/\">fiat money (like euros or US dollars)<\/a>, which can be printed indefinitely by central banks, the supply of Bitcoin is limited from the start. The central bank in Switzerland, for example, can issue more francs at any time, more or less at will, by printing new banknotes. With Bitcoin, this is technically impossible.<\/p>\n<p>This makes Bitcoin fundamentally different from any traditional currency:<\/p>\n<ul>\n<li><strong>Inflation protection:<\/strong> The limited supply prevents Bitcoin from losing value through &#8220;monetary expansion.&#8221;<\/li>\n<li><strong>Trust in scarcity:<\/strong> Investors know that no Bitcoin will be &#8220;reprinted.&#8221;<\/li>\n<li><strong>Digital scarcity:<\/strong> Like gold, value is created through limitation, but purely digital.<\/li>\n<\/ul>\n<script type=\"text\/plain\" data-tcf=\"waiting-for-consent\" data-id=\"20572\" data-bid=\"1\" data-placement=\"33872\">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<\/script><h2>Why Exactly 21 Million?<\/h2>\n<p>The number 21 million is not random, but the result of a mathematical formula. Technically, the limit is based on the following calculation:<\/p>\n<p>50 BTC \u00d7 210,000 blocks \u00d7 (1 + \u00bd + \u00bc + \u215b + \u2026) = 21 million BTC<\/p>\n<p>This mathematical series converges toward the magic limit. A well-thought-out principle based on scarce resources, predictable emission, and fixed logic. The emission of new coins follows a clear, decentrally coordinated schedule, without any central bank.<\/p>\n<p>New bitcoins are created through a process called <strong>mining<\/strong>. Computers worldwide solve complex mathematical problems to confirm new transactions and add new blocks to the <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/what-is-a-blockchain-basics-and-functionality\/\">blockchain<\/a>. The winner receives a reward in the form of newly created Bitcoin, the so-called <strong>block reward<\/strong>. Initially, this reward was 50 BTC per block, but every 210,000 blocks (approximately every 4 years) it is halved through an event called the <strong>halving<\/strong>.<\/p>\n<p>You can find everything about mining in our comprehensive <a href=\"https:\/\/www.coinpro.ch\/en\/bitcoin-en\/bitcoin-explained-how-are-bitcoins-created\/\">Bitcoin Mining article<\/a>.<\/p>\n<h2>Bitcoin Halving: Why There Are Fewer and Fewer New BTC<\/h2>\n<p>This is the core of the 21 million limit: Through regular <a href=\"https:\/\/www.coinpro.ch\/en\/bitcoin-en\/bitcoins-explained-what-is-bitcoin-halving\/\">halving<\/a>, the number of new bitcoins continuously decreases:<\/p>\n<ul>\n<li>2009: 50 BTC per block<\/li>\n<li>2012: 25 BTC<\/li>\n<li>2016: 12.5 BTC<\/li>\n<li>2020: 6.25 BTC<\/li>\n<li>2024: 3.125 BTC<\/li>\n<li>2028: 1.5625 BTC<\/li>\n<\/ul>\n<p>Through this principle, the total supply asymptotically approaches the 21 million mark without ever exceeding it exactly. The last fractions of a Bitcoin are expected to be mined <strong>in the year 2140<\/strong>.<\/p>\n<p>The halving mechanism is firmly anchored in the code of Bitcoin and contributes significantly to the deflationary nature of the cryptocurrency. Initially, the block reward was 50 BTC per block. This has been successively reduced by the first halvings and, after the 2024 halving, is currently at 3.125 BTC. The next halving is expected to take place in 2028.<\/p>\n<h2>How Many Bitcoins Exist Currently?<\/h2>\n<p>On March 9, 2026, a historic milestone was reached: The <strong>20 millionth Bitcoin<\/strong> was mined. This means that over 95% of all Bitcoins that will ever exist are already in circulation. While it took only about 17 years to produce the first 20 million BTC, mining the last million coins will take approximately 114 years, according to the algorithmically determined schedule.<\/p>\n<p>However, not the entire supply is actually usable. Estimates suggest that <strong>3 to 4 million Bitcoin<\/strong> are permanently lost due to forgotten passwords or lost wallets. This significantly reduces the actually available supply.<\/p>\n<p>For mainstream investors, the number &#8220;20 million&#8221; may sound like a mere statistic. However, in the world of hard assets, this is the signal for a final supply shortage. At a time when central banks worldwide are expanding the money supply to tackle economic challenges, Bitcoin acts as a counterpoint.<\/p>\n<h2>Bitcoin Supply Limited: Advantages of a Fixed Money Supply<\/h2>\n<p>The 21 million limit has massive implications for Bitcoin&#8217;s value proposition, especially compared to traditional currencies:<\/p>\n<ul>\n<li><strong>Transparency:<\/strong> Anyone can verify the money supply. There is no arbitrary increase.<\/li>\n<li><strong>Long-term value stability:<\/strong> Bitcoin is considered a hedge against inflation (&#8220;digital gold&#8221;).<\/li>\n<li><strong>Level playing field:<\/strong> No one, not even a state, can &#8220;print more Bitcoin.&#8221;<\/li>\n<li><strong>Predictability:<\/strong> Investors and miners know the future supply development.<\/li>\n<\/ul>\n<h3>Bitcoin vs. Fiat: Why a Fixed Money Supply Matters<\/h3>\n<p>A central problem of many fiat currencies is <strong>inflation<\/strong>, the gradual devaluation of money through a growing money supply. Central banks like the ECB or Fed often increase the money supply during crises (&#8220;quantitative easing&#8221;) to finance stimulus programs. This can help in the short term, but in the long run, consumers and savers lose purchasing power. History shows: The more money in circulation, the less it&#8217;s worth.<\/p>\n<p>Bitcoin deliberately makes a statement here:<\/p>\n<ul>\n<li><strong>No arbitrary expansion:<\/strong> The maximum supply is fixed. There is no Bitcoin printing.<\/li>\n<li><strong>Predictable scarcity:<\/strong> With each halving, Bitcoin&#8217;s inflation rate automatically decreases. It&#8217;s now below one percent, lower than that of gold.<\/li>\n<li><strong>Deflationary model:<\/strong> In the long term, Bitcoin can increase in value simply through limited supply and rising demand.<\/li>\n<\/ul>\n<p>For investors, this offers a clear alternative to fiat currencies, whose value can be influenced by political decisions. Bitcoin is thus a tool for preserving value in the digital age. Especially in countries with high inflation like Venezuela, Argentina, or Turkey, this advantage is already evident in practice.<\/p>\n<h2>What Does the Limit Mean for Bitcoin&#8217;s Price?<\/h2>\n<p>The relationship between supply and demand is a fundamental principle of economics. When supply is fixed (as with Bitcoin) and demand increases, the price per unit rises in the long term.<\/p>\n<p>This is exactly what analysts observe with Bitcoin: More and more institutional investors, ETFs, states, and private investors are interested in BTC, while the supply stubbornly remains at 21 million. Scarcity is therefore not a limitation, but a <strong>value driver<\/strong>.<\/p>\n<p><strong>Worth reading<\/strong>: <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/how-is-the-value-of-cryptocurrencies-formed\/\">How Is the Price of Cryptocurrencies Determined?<\/a><\/p>\n<p>On-chain data shows that the amount of bitcoins available on exchanges has dropped to a multi-year low. More and more coins are moving into the hands of long-term holders or institutional custodians. When the 20 million mark is exceeded and daily new production by miners remains marginal, rising demand meets a nearly dried-up supply.<\/p>\n<h2>What Happens When All Bitcoins Are Mined?<\/h2>\n<p>Forecasts suggest that the last Bitcoin will be mined around the year 2140. From that point on, no new block reward will be distributed. But this does not mean the end of the Bitcoin network. Rather, a new phase begins in which the structure of incentives shifts.<\/p>\n<h3>How Will Miners Be Paid After the Last Bitcoin?<\/h3>\n<p>Miners will then receive their income exclusively from the transaction fees that users pay to have their transactions processed in the network. Even today, these fees make up a significant portion of miners&#8217; revenue. In the future, they will be the sole incentive for mining.<\/p>\n<p>For mining to remain economically viable even without block subsidies, the network must continue to be actively used. A high number of transactions, combined with a certain willingness of users to pay for fast and secure processing, is crucial. At the same time, miners must reduce their operating costs, for example through cheaper electricity prices, more efficient hardware, or the relocation of their infrastructure to regions with better framework conditions.<\/p>\n<h3>Will the Bitcoin Network Remain Secure?<\/h3>\n<p>The Bitcoin network is based on the proof-of-work mechanism, in which miners generate new blocks and validate transactions through high computing power. If the incentive through new coins is eliminated, mining could become unattractive for some players. The consequence would be a decreasing hash rate, i.e. the total computing power in the network. A lower hash rate, in turn, could theoretically impair the security of the network, as attacks would be easier to carry out.<\/p>\n<p>However, it is also conceivable that rising transaction fees or a continued high Bitcoin price will keep mining profitable. This could be enough to maintain the necessary security and network integrity. Layer-2 solutions like the <strong>Lightning Network<\/strong> also enable transactions to be processed off the main blockchain, significantly increasing speed and scalability and growing overall transaction volume.<\/p>\n<h3>Bitcoin as a Purely Deflationary Asset<\/h3>\n<p>Due to the fixed upper limit, Bitcoin will be a purely deflationary asset in the future. New units will no longer come into circulation. Should the demand for Bitcoin continue to rise, this could lead to a sustained price increase. At the same time, the deflationary nature could lead many users to hold their coins rather than spend them, expecting the value to continue rising. This could possibly have a negative impact on the transaction volume and thus on the income of the miners.<\/p>\n<p>Its scarcity could make Bitcoin a digital equivalent of gold, a long-term store of value in times of growing economic uncertainty. Especially in countries with unstable currency systems, Bitcoin is already being used today as an alternative to the classic banking system. This trend could intensify when the coin supply is definitively fixed.<\/p>\n<h2>Conclusion<\/h2>\n<p>The number may seem mathematical, but it is deeply symbolic: 21 million Bitcoin are a promise of stability, predictability, and fairness in the monetary system. No inflation, no central bank, no manipulation\u2014just open, verifiable mathematics.<\/p>\n<p>Bitcoin remains a long-term project characterized by its forward-looking architecture and the adaptability of its community. Even after the year 2140, Bitcoin is unlikely to disappear, but will continue to evolve in a changed form.<\/p>\n<div class=\"faqbox\">\n<h2>Frequently Asked Questions About Bitcoin Supply<\/h2>\n<section id='' \n                class='helpie-faq accordions faq-toggle' \n                data-collection='' \n                data-pagination='0' \n                data-search='0' \n                data-pagination-enabled='0'\n                role='region'\n                aria-label='FAQ Section'\n                aria-live='polite'><article class=\"accordion \"><div class='helpie-faq-row'><div class='helpie-faq-col helpie-faq-col-12' ><ul><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-42331\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-42331\"\r\n                data-id=\"post-42331\" \r\n                data-item=\"hfaq-post-42331\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">How many Bitcoins are lost?<\/div><\/div><div id=\"accordion-content-post-42331\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-42331\"\r\n                style=\"background:transparent;\"><p>Estimates suggest that 3 to 4 million Bitcoin are permanently lost. The reasons include forgotten passwords, lost wallets, or damaged hard drives. These coins cannot be recovered and significantly reduce the circulating supply.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-42323\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-42323\"\r\n                data-id=\"post-42323\" \r\n                data-item=\"hfaq-post-42323\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">How many Bitcoins are there in total?<\/div><\/div><div id=\"accordion-content-post-42323\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-42323\"\r\n                style=\"background:transparent;\"><p>A maximum of 21 million Bitcoin can exist. As of April 2026, over 20 million BTC are already in circulation. The remaining coins are being mined increasingly slower due to the halving principle and won&#8217;t be fully mined until around 2140.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-42330\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-42330\"\r\n                data-id=\"post-42330\" \r\n                data-item=\"hfaq-post-42330\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Is the supply of Bitcoin limited?<\/div><\/div><div id=\"accordion-content-post-42330\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-42330\"\r\n                style=\"background:transparent;\"><p>Yes. The 21 million BTC cap is firmly embedded in the Bitcoin protocol and virtually unchangeable. This limit is a core feature that distinguishes Bitcoin from traditional currencies and serves as inflation protection.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-42329\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-42329\"\r\n                data-id=\"post-42329\" \r\n                data-item=\"hfaq-post-42329\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">What happens when all 21 million bitcoins have been mined?<\/div><\/div><div id=\"accordion-content-post-42329\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-42329\"\r\n                style=\"background:transparent;\"><p>Miners will no longer receive a block reward and will fund themselves exclusively through transaction fees. The Bitcoin network will keep running as long as enough users are willing to pay to have their transactions processed.<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/article><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Why Are There Exactly 21 Million Bitcoin? Is the Supply Really Limited? And What Happens When All Bitcoins Are Mined? In this article, you&#8217;ll learn everything about the maximum Bitcoin supply, the technical foundations behind it, and why the limit is so crucial for Bitcoin&#8217;s value. Is the Number of Bitcoins Really Limited? Yes. The&#8230;<\/p>\n","protected":false},"author":6,"featured_media":39008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[17315,17321,17331],"tags":[],"class_list":["post-39527","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin-en","category-insights-en","category-knowledge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>21 Million Bitcoin &ndash; Everything About the Magic Number in the BTC Universe - CoinPro.ch<\/title>\n<meta name=\"description\" content=\"Bitcoin Supply: How Many Bitcoins Are There? Why Is the Supply Limited to 21 Million? 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