# Halving

> An event where the reward for mining new Bitcoin blocks is cut in half. Happens roughly every four years.

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Source: What The Block! Dictionary v1.0 (last updated 2026-04-25), browsable at https://wtb.fudfomo.co.

## Definition

A halving is when Bitcoin's block reward is cut in half. It happens roughly every four years, after every 210,000 blocks are mined.

The halving slows the rate at which new bitcoin is created, which is why people often discuss it in connection with Bitcoin's price. Other proof-of-work coins have similar events on their own schedules.

## Related terms

- [Bitcoin](https://fudfomo.co/glossary/bitcoin): The first cryptocurrency. A digital money you can send anywhere in the world without a bank, secured by a network of computers.
- [Mining](https://fudfomo.co/glossary/mining): Using computers to add new transactions to a blockchain and earn newly created coins as a reward.
- [Proof of Work](https://fudfomo.co/glossary/proof-of-work): A way to secure a blockchain by making computers do a lot of calculation. Used by Bitcoin.

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