Crypto mining (cryptocurrency mining) is the process of earning cryptocurrency by using computer power to solve complex mathematical problems. Here’s how money is made through crypto mining, explained in simple terms:
Mining is how transactions are verified and added to the blockchain (a digital ledger). It also introduces new coins into circulation.
Miners earn money in two main ways:
When a miner successfully solves a mathematical puzzle and adds a new block to the blockchain, they receive a reward in the form of cryptocurrency (e.g., Bitcoin).
Example: As of 2025, a Bitcoin miner may earn 3.125 BTC (after halving in 2024) for each block mined.
Each transaction included in a block comes with a small fee. These fees are paid by users and collected by the miner who adds that block to the blockchain.
Powerful hardware (like ASIC miners or GPUs)
Electricity (mining consumes a lot of energy)
Mining software
A crypto wallet to receive your earnings
Optionally, join a mining pool to combine efforts with others and share the profits
To make money, your earnings from block rewards + transaction fees must be greater than your costs, which include:
Electricity
Hardware purchase and maintenance
Internet and cooling systems
Mining can be profitable, but:
It's competitive
Profits depend on the price of the cryptocurrency
Higher electricity costs reduce earnings
Some coins are no longer mineable (e.g., Ethereum switched to Proof of Stake)