What Is Hashrate?
📖 6 min read
Quick Answer
Hashrate is the heartbeat of Bitcoin — the total computing power miners point at the network, measured in hashes per second. It determines both how secure Bitcoin is and how much of the rewards your own machine can earn. Here is what the number really means.
💡 Think of it as…
Hashrate is like the number of lottery tickets being bought across the whole world every second. The network’s total tells you how big the game is; your machine’s share tells you your odds of winning the next block.
What hashrate measures
A "hash" is one attempt at the mining puzzle. Hashrate is how many of these attempts happen per second — for a single machine (e.g., 200 TH/s = 200 trillion per second) or for the entire network (now measured in exahashes, EH/s — quintillions per second).
Network hashrate and security
The total network hashrate reflects how much energy and hardware defend Bitcoin. The higher it climbs, the more expensive it becomes to attack — an attacker would need to out-compute the entire honest network. Record hashrate means record security.
Your share of the rewards
Your earnings are roughly your hashrate divided by the network’s. If you have 0.0001% of total hashrate, you should earn about 0.0001% of the block rewards over time. As network hashrate grows, your fixed machine’s share shrinks.
Hashrate vs difficulty
Hashrate and difficulty move together: when hashrate rises, difficulty follows ~2 weeks later to keep block times steady. Watching hashrate trends helps miners anticipate difficulty changes and plan profitability.
🔑 Key takeaway
Hashrate is the number of mining attempts per second — for one machine or the whole network. Higher network hashrate means more security and a higher cost to attack; your machine’s share of total hashrate determines your share of rewards, which shrinks as the network grows.
Why this matters for you
Asia has historically hosted a huge share of global hashrate, from China’s former dominance to today’s operations in Kazakhstan, Laos and beyond. Understanding hashrate helps you grasp where mining power flows — usually toward the cheapest energy on Earth.
Frequently asked questions
What is a good hashrate for mining?▼
For a single modern ASIC, 100–250+ TH/s is typical. But "good" depends on efficiency and your electricity cost — a lower-hashrate but more efficient machine on cheap power can out-earn a powerful one on expensive power.
Why does higher network hashrate matter?▼
It means more energy is securing Bitcoin, making attacks vastly more expensive. It also means more competition, so each machine earns a smaller share — security and competition rise together.
Is high hashrate good or bad for me as a miner?▼
Mixed. High network hashrate means strong security but more competition, shrinking your share. Your profitability depends on your hashrate relative to the network, your efficiency, and your power cost.