What are the odds of solo mining a bitcoin block?

They scale with your share of the network. This calculator divides your hashrate by the live network rate and compounds it over every block mined in your window — the exact probability, not an approximation.

What happens if I find a block solo?

The whole block reward — subsidy plus fees — pays out to you. On a solo pool such as solo.ckpool.org the payout is yours alone, minus the pool's small fee.

How much hashrate do I need to find a block?

Any amount can find one — tiny desk miners have done it — but the chance scales linearly: double the hashrate, double the odds. Use the calculator to see your once-every-how-long number at any size.

Is solo mining a good idea?

As a business, almost never — a pool pays steadily for the same work. As a lottery ticket it is exactly priced: rare, honest odds at the whole block. Know which of the two you are buying.

Can I rent hashrate to take a shot?

Yes — that is what our own machines are for. Rent by the hour on the marketplace, point the rental at a solo pool, and any block it finds pays out to you.

Solo mining odds

Enter a hashrate and a window. The calculator answers with the real chance of finding at least one block, computed from the live network — and what that block pays right now.

Your hashrate

TH/s

Running for

hours

chance of at least one block

1 in 25,945

0.003854%

expected blocks in the window

0.000039

the block pays right now

$202,290

Running nonstop at this rate, you would statistically find a block about once every 71 years.

No hardware? Our machines rent by the hour — see what a shot costs.

Straight questions

What are the odds of solo mining a bitcoin block?: They scale with your share of the network. This calculator divides your hashrate by the live network rate and compounds it over every block mined in your window — the exact probability, not an approximation.
What happens if I find a block solo?: The whole block reward — subsidy plus fees — pays out to you. On a solo pool such as solo.ckpool.org the payout is yours alone, minus the pool's small fee.
How much hashrate do I need to find a block?: Any amount can find one — tiny desk miners have done it — but the chance scales linearly: double the hashrate, double the odds. Use the calculator to see your once-every-how-long number at any size.
Is solo mining a good idea?: As a business, almost never — a pool pays steadily for the same work. As a lottery ticket it is exactly priced: rare, honest odds at the whole block. Know which of the two you are buying.
Can I rent hashrate to take a shot?: Yes — that is what our own machines are for. Rent by the hour on the marketplace, point the rental at a solo pool, and any block it finds pays out to you.