Bitcoin halving countdown

Bitcoin has a fixed supply of 21 million coins. As of 2025, approximately 19.84 million bitcoins have been mined, accounting for about 94% of the total supply.

Bitcoin halving is the process of reducing the block reward given to miners by half, which slows the creation of new BTC and introduces controlled deflation.

This mechanism ensures predictability and transparency in Bitcoin’s issuance schedule, making it more reliable as a financial asset — investors know exactly when supply growth will decrease.

Halving also boosts Bitcoin’s scarcity, reinforcing its intrinsic value. This feature, inspired by the limited supply of commodities like gold, was built into the protocol by Satoshi Nakamoto to mimic natural resource economics and support long-term value preservation.

Satoshi Nakamoto designed Bitcoin’s issuance, capping total supply at 21 million coins, unlike fiat currencies which can be printed indefinitely.

When Bitcoin launched in 2009, miners earned 50 BTC per block. However, the protocol was designed to halve the block reward every 210,000 blocks — roughly every four years — to control supply.

As a result:

• In 2012, the reward dropped to 25 BTC
• In 2016, to 12.5 BTC
• In 2020, to 6.25 BTC
• And in 2024, to 3.125 BTC

This halving cycle will continue until around 2140, when the reward will fall below one satoshi (0.00000001 BTC), Bitcoin’s smallest unit. By then, all 21 million BTC will have been mined, and miners will earn income solely from transaction fees

The reason for excitement around the halving event is its potential economic impact, historical patterns of price changes following previous halving events, and the way it influences miners and the cryptocurrency market:

• Bitcoin economic model: Halving is an integral part of the BTC economic model. The lower the supply of BTCs, – the higher they are priced.
• History of impact on BTC price: Past BTC halving events have been accompanied by increased coin volatility over the next 1-1.5 years: the asset’s price can rise by 2000% plus, – as it was in 2016. However, the value of Bitcoin is influenced by many other factors, and its past performance does not guarantee future results.
• Impact on miners' income: Most miners' income comes from rewards distribution for a found block of Bitcoin. Each halving cuts this reward in half, reducing profits unless offset by rising BTC prices or fees.

The fourth halving of Bitcoin took place in April 2024 and now we are waiting for the next Bitcoin halving in 2028.

Predicting the exact date of the next halving is difficult because it depends on block size, but you can rely on SwapSpace Halving Countdown. Why is our timer different from the others? It is based not on the average block mining time, which is commonly cited as 10 minutes, but on live blockchain statistics. This timer may alternate, but still, it is the most precise halving countdown.