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I am curious on how many estimated BTC I will earn at any hash rate since, I don't really think I'm really earning any BTC at 600 Mhash/s.

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The answer of D.H. assumes the hashrate of the network never changes between difficulty jumps. But it can in fact evolve quite a bit, so it can be inaccurate sometimes. Your proportion in the network may change but, until the difficulty adjusts, this will not change your rewards.

Your average reward will be :

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So, in your case, with 600 MH/s and a time period of 1 day, the result is, in average, 0.3394412542813765 BTC a day (with current difficulty).

Explanations: the first term is the average reward per difficulty-1 share, and a difficulty-1 share is found in average every 2^32 hashes.

Now, if you're going to be pooled mining, adjust the 50 in the formula to take fees into account (use 48.5 for example for a 3% fee). Same goes when blocks start generating 25 BTC only.

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  • 1
    If you're going for that degree of accuracy, it should be noted that difficulty 1 does in fact not correspond to 2^32 hashes, but to 2^48/65535 (4295032833 instead of 4294967296). – Pieter Wuille Sep 17 '11 at 12:21
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You can see an estimation of the total hashrate here. At this point 12.85 Terahash/s. So your share of that would be 600/12850000 = 0,00004 = 0,004%.

50BTC / 10 minutes are awarded to miners, that is 7200 BTC /day.

0,00004 * 7200 = 0.34

So, roughly 0.34 BTC/day if my calculations are correct.

Also, here is a list of calculators that can be used.

The last one seems very easy to use, simply input your hashrate and press "calculate".

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  • That partially answers my question, but is there a calculator that tells the hash rate, and considers difficulty changes along with the price? – user173 Sep 3 '11 at 7:18
  • Added some info on calculators. – D.H. - bitcoin.se Sep 3 '11 at 7:30

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