New miners often squint at their output trying to work out whether 3.2 kH/s is good, bad, or a typo. The units are simple once someone explains the pattern, and after five minutes you will read them as easily as kilometres and metres.

What a hash actually is

A hash is one attempt to solve the mining puzzle: take the block data, mix in a nonce, run it through the algorithm, and check the result against the target. Your hashrate is simply how many of those attempts your hardware makes per second. More attempts per second means more chances to find a valid block or share.

The unit ladder

  • H/s - hashes per second, the base unit.
  • kH/s - kilohashes, one thousand H/s.
  • MH/s - megahashes, one million H/s.
  • GH/s - gigahashes, one billion H/s.

Each step up multiplies by a thousand, exactly like grams to kilograms. So 3,200 H/s and 3.2 kH/s are the same number written two ways.

Why the units differ between miners

A CPU mining a memory-hard algorithm might report in H/s or kH/s, because each hash is deliberately heavy. A GPU on a lighter algorithm could report in MH/s. The unit tells you something about both the hardware and the algorithm, so do not compare a kH/s figure from one coin against an MH/s figure from another and conclude one is a thousand times better - they are doing different work.

Reading your own number in context

The only comparison that matters is against the network total and against similar hardware on the same coin. Your pool dashboard usually shows the network hashrate; your slice of it is roughly your share of the rewards. Comparing against another miner with the same CPU or GPU on Malairte tells you whether your tuning is good.

Watch the trend, not the twitch

Hashrate fluctuates second to second. A figure that swings wildly between zero and high suggests a thermal or driver problem. A figure that holds steady with minor wobble is healthy. Judge by the settled average over several minutes, never by a single flickering line.

A quick sanity habit

When you change a setting, note the unit as well as the number. Confusing kH/s for MH/s has fooled plenty of people into thinking a tweak gave a thousandfold gain. Read the suffix, every time, and the whole dashboard suddenly makes sense.