Bitcoin Supply Tracker

Track Bitcoin's circulating supply in real time. See how much BTC has been mined, remaining supply, inflation rate, stock-to-flow ratio, and next halving progress.

Only 21 million Bitcoin will ever exist.
Track how much has been mined, what remains, and when the supply runs out.

Bitcoin's fixed supply is its most defining feature. Unlike fiat currencies that can be printed without limit, Bitcoin's monetary policy is hardcoded: a maximum of 21,000,000 BTC, with new coins created at a diminishing rate through mining. This page tracks the current supply in real time.

Live Supply Dashboard

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Understanding Bitcoin Supply

Bitcoin's supply schedule is entirely predictable and transparent. New BTC is created with every block mined — approximately every 10 minutes. The rate of creation started at 50 BTC per block in 2009 and halves every 210,000 blocks (roughly four years). This disinflationary model means the rate of new supply continuously decreases over time.

Today, with a block reward of 3.125 BTC, approximately 450 new Bitcoin are created daily. Compare this to gold, where annual production varies based on mining economics, or fiat currencies, where central banks can expand supply at will. Bitcoin's supply is mathematically certain.

Why 21 Million?

Satoshi Nakamoto chose 21 million as Bitcoin's maximum supply, though the exact reasoning was never fully explained. The number emerges naturally from the protocol rules:

The Math

Sum the geometric series: 210,000 blocks × (50 + 25 + 12.5 + 6.25 + ...) = 210,000 × 100 = 21,000,000 BTC. The halving schedule and block interval naturally produce this cap.

Digital Scarcity

A fixed supply creates digital scarcity — something that didn't exist before Bitcoin. No one can create more BTC, debase it through inflation, or change the supply schedule without consensus from the entire network.

Lost Coins

An estimated 3–4 million BTC are permanently lost due to forgotten keys, sent to unspendable addresses, or belonging to Satoshi's untouched stash. This makes the effective supply even scarcer.

The Stock-to-Flow Model

Stock-to-flow (S2F) measures scarcity by dividing the existing stock (circulating supply) by the annual production flow (newly mined coins). A higher ratio means the asset is scarcer relative to its new production:

Asset Stock-to-Flow
Bitcoin (current) ~120
Gold ~62
Silver ~22

After each halving, Bitcoin's S2F ratio roughly doubles, making it progressively scarcer than gold. While the S2F model has limitations and critics, it highlights Bitcoin's unique monetary properties.

Frequently Asked Questions

How much Bitcoin has been mined so far?
As of 2026, approximately 19.8+ million BTC have been mined — over 94% of the total supply. The exact number is shown in real time at the top of this page. The remaining ~1.2 million BTC will be mined over the next ~114 years, with the rate decreasing after each halving.
When will the last Bitcoin be mined?
The last Bitcoin is estimated to be mined around the year 2140. However, well before that, the block reward becomes negligible — by 2048, the reward will be less than 0.1 BTC per block. In practice, the last meaningful amounts of new BTC will be mined in the next few decades.
Can the 21 million cap be changed?
Theoretically, yes — a hard fork could change the supply cap. Practically, no — it would require consensus from miners, node operators, developers, and users worldwide. Such a change would undermine Bitcoin's core value proposition and face near-universal opposition. The 21 million cap is considered immutable.
What is Bitcoin's inflation rate?
Bitcoin's current annual inflation rate is approximately 0.83% (3.125 BTC × 144 blocks/day × 365 days / circulating supply). This is already lower than gold's ~1.5% annual inflation and most central bank targets of 2%. After the next halving (~2028), it will drop to roughly 0.4%.
How many Bitcoin are lost forever?
Estimates range from 3 to 4 million BTC permanently lost. This includes Satoshi Nakamoto's estimated 1.1 million BTC (untouched since mining), coins sent to provably unspendable addresses, and wallets whose private keys have been lost. These coins can never be recovered, reducing the effective supply.
Scarce asset, limited time

Mine Bitcoin Before It's Gone

Less than 6% of all Bitcoin remains to be mined. Each halving makes mining rewards smaller. Start accumulating BTC now with NoxHash's cloud mining — before the next halving cuts rewards in half again.

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