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 result is 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 whole-block attempt it is exactly priced: rare, honest odds at the entire reward. Know which of the two you are buying.

Can I rent hashrate instead of buying a machine?

Yes, that is what our own USA machines are for. They are already running; you rent by the hour, point them at a solo pool, and any block they find pays out to you. The directory also lists shops that sell home miners if you want a box of your own.

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 24,274

0.00412%

expected blocks in the window

0.000041

the block pays right now

$256,265

Already mining? Add ours to yours

Enter what you already run. We will show what our open machines add to it over the same window.

On its own, 270 TH/s over 24h runs at 1 in 24,274. Add our 6,534 TH/s and the same window becomes 1 in 964, about 25× the chance.

See what our open machines cost

Running nonstop at this rate, a block lands about once every 67 years on average.

No hardware of your own? Our USA machines rent by the hour, pointed at your pool · live cost and block odds. 6,534 TH is open to rent right now. A 3-hour window on a full-size machine is about $1.60.

First time renting? Read the step-by-step guide.

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 result is 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 whole-block attempt it is exactly priced: rare, honest odds at the entire reward. Know which of the two you are buying.
Can I rent hashrate instead of buying a machine?: Yes, that is what our own USA machines are for. They are already running; you rent by the hour, point them at a solo pool, and any block they find pays out to you. The directory also lists shops that sell home miners if you want a box of your own.