Pick a coin and enter your hashrate. The network hashrate and the pool fees below are read live from this site’s own coin pages — the same tables the pool rankings are built on.
Mining maths starts with one ratio: your hashrate against the whole network. That ratio decides how often a block would be yours, and nothing a pool does changes it. The calculator takes the network side from our own live table, so you are not comparing your rig against a figure somebody typed into an article months ago.
What it will not do is predict your income in dollars. That needs a coin price and a block reward, both of which move, and a guess dressed up as a result is worse than no result. Add the electricity section and you get the side of the equation that is genuinely yours to control: what the machine costs to run while it waits.
“One block in every N network blocks” is the plain form of the answer. At a 0.01 % share you would win one block in ten thousand — which is why small miners join pools and take a steady slice instead of waiting for a whole reward. Fill in the block time and the same number turns into a wait you can judge: hours, days or centuries.
Pool choice then changes the cost, not the odds. The fee field is filled from the fee each pool publishes in our table for that coin; where a pool does not publish one, the field stays empty rather than inventing a number. Full terms live on the pool pages, and the live hashrate split is on each coin page.
The network hashrate and the pool fees are read from this site’s own coin page for the coin you pick, at the moment you open the calculator. Everything else — your hashrate, block time, power draw and electricity price — is yours to enter.
No. Your share of the network is your hashrate divided by the network hashrate, and no pool changes either number. What a pool changes is how the reward reaches you: pooled payouts arrive often and small, solo payouts arrive rarely and whole.
Without it the honest answer is a block count: one block in every N the network finds. Block time turns that count into days and years. It is a protocol constant, so we ask for it rather than guess it for two dozen coins.
It is an average over a long run, not a countdown. A block can arrive on the next hash or far later than the average suggests. Difficulty, price and hashrate also move, and the figures here are a snapshot of this moment.