Bitcoin · Calculator

Solo mining:
your real odds of finding a block.

Enter your hash rateHash rateHow many hashes (guesses at the puzzle that wins a block) a miner makes per second. The network hash rate is the total across all miners: the higher it is, the harder and more expensive it would be for any attacker to overpower the network.Full definition. See your honest probability of winning the block-reward lottery per day, per year, and over a lifetime. The math is exactly like a lottery, except the odds don't change.

The question it answersWhat are my real odds of solo mining a Bitcoin block?

Privacy: runs in your browser. What you enter stays on your device unless you copy a share link, which puts your inputs in the link.

Default: 6.59 TH/s (roughly 4x Bitaxe Gamma Duo).

Exahashes per second. 1 EH/s = 1,000,000 TH/s. Default: 926 EH/s, the 7-day average to Sep 24, 2026.

3.125 BTC after the April 2024 halvingHalvingThe scheduled event, built into Bitcoin's code, that cuts the new bitcoin paid to miners per block in half. It happens every 210,000 blocks, about every four years; the April 2024 halving at block 840,000 cut it from 6.25 to 3.125 BTC, slowing the rate of new supply.Full definition. Next halving ~2028.

Default: $81,262, the Sep 19, 2026 daily close.

YOUR ODDS
Per day:
1 in ···
Expected time to find one block:
···
THIS WEEK
0%
THIS YEAR
0%
IN 10 YEARS
0%
IF YOU FIND A BLOCK
Block reward value
$0
Annual electricity cost
$0
FOR CONTEXT

Think of this as a lottery ticket that never expires. Most solo miners never find a block. Some find one in their first week.

Projection, not a promise. The result follows the assumptions you enter. Real results will differ, sometimes by a lot.

What this tool assumes
  • Solo-mining probability of finding a block depends on your hashratehashrateThe total computational power a miner or the entire Bitcoin network applies to finding blocks, measured in hashes per second. More hashrate means more security but also more competition for block rewards.Full definition share of total network hashrate.
  • Payout is lumpy; expected value is identical to pool mining minus pool fees.
A single small home miner on a stool in front of an enormous warehouse filled with endless rows of industrial mining machines.
Solo-mining odds depend on your share of total network hash rate, and one home miner is a tiny sliver of it. Most solo miners never find a block; some find one in their first week.

Network hash rate changes daily. Verify current figure at mempoolmempoolThe waiting area for Bitcoin transactions that have been broadcast to the network but not yet confirmed in a block.Full definition.space/mining before quoting odds.

HOW THIS IS CALCULATED

This tool runs entirely in your browser: no data is sent to any server. The assumptions and default values behind the result are listed under “What this tool assumes” on this page. Verify the methodology or inspect the source code in your browser's dev tools.

Where to go from here

Read next

Cloud Mining & Hashrate Rentals

Hashrate rentals and cloud-mining contracts, run through the math: why the EV is a mirage, why the seller is your adversary, and why just buying BTC wins.

Explore further
  • Bitcoin MechanicsBlockchain, mining, the halving, and Lightning Network, explained without jargon.
  • The Bitcoin HalvingEvery 210,000 blocks (roughly every 4 years), new-coin issuance is cut in half.

Sources

Verify badges in the text link to these sources. Figures, rates and rules change: check each source’s date before acting on it.

  1. mempool.space, mempool.space/mining ↩

Calculators are educational estimates, not financial advice. Disclosures · How pages are reviewed