Bitcoin Forum

How accurate are bitcoin calculators?
i am planing on buying 10 antminers at 2 th/s total
i used https://www.alloscomp.com/bitcoin/calculator it says i will be making 4.99641908 BTC

not accurate. just a rough guide.

by the time you bought the rigs. 10,000 more people may have turned their rigs on, which cuts the slice of the pie more thinly when it comes to shares. and then their rigs add to the hashpower making the difficulty raise each 2 weeks for everyone involved. no one can predict how many users will join tomorrow, so by the time you bought the rigs, the hashpower has changed. and if its been 2 weeks, the difficulty has changed. (2 factors that alter the siz of the share you will get)

so treat it as rough estimate, not something to base 'guaranteed income' on.. you will never know exact numbers of fnds you receive, ntil you receive it.

That's at today's difficulty I assume.  You have to factor when you will actually get the machine in hand, what will the difficulty will be then and how will it change over time.

Also, that is an estimate, your pool can have good or bad luck.

Use a calculator that takes difficulty into account https://bitcoinwisdom.com/bitcoin/calculator

I recommend this calculator https://cex.io/calc   I'm assuming that you will make about 13 btcs(total before october) with 2 t/h until the returns in btc become too insignificant to operate vs cost of electricity.  I'm mining with 6 overclocked antminers for a total of 1.15 t/h (real-world operation hash rate) and hope to reach about 6-7 btcs by end of september.  10 antminers are going to produce quite a bit of noise and loads of heat so consider that into consideration as well.  Also, make sure that the circuits that you will use can handle that kind of load.  You may already know all this but doesn't hurt to repeat safety precautions.

Do your own calculation. And make sure to consider the increasing hash rate as seen on https://blockchain.info/charts/hash-rate

Its just an estimate, but if your actual hash is  10ths, you should a little less/more than 5

I believe that the OP is talking about the S1 not S2; in which case the 2 t/h total is accurate for 10 overclocked S1s.

I just do my own calculations in a spreadsheet with a few assumptions but it can be pretty accurate..

Here is what I do

Work out your Hashes.. for instance 2TH/s will be 2000 x 10000000000 = 20000000000000 (Will call this A1)

Add a cell with the difficulty 6,119,726,089 (call it A2)

Then use this formula to get the amount of Bitcoins you will make per day

=(216000*A1)/(A2*(2^32))

Times it by how many days left and that's roughly how many Bitcoins you will make this diff

I calculate a 20% increase in each difficulty so I make a new cell with

=SUM(0.2*A2)+A2

Rinse and repeat every 13 days or so.. and you will get a fairly accurate picture

Any bitcoin calculators that have difficulty increment by 20% per 11-12 days is pretty accurate..

I developed mining calculator for a pretty long time :)
This is very accurate calculator: mining-profit.com (http://mining-profit.com/)
There is "advanced version" : http://mining-profit.com/advanced-calculator - here you can set all necessary parameters and estimate your profit.
Calculator takes into account Bitcoin difficulty growth.

PS. If you will have any questions, wait few days, I'm working on FAQ page now ;)
Or check this topic: https://bitcointalk.org/index.php?topic=523491

LOL.


Uh.... in what period of time? In a day? A second? A month? My lifetime? The miner's lifetime?

When the KNC miners start hitting the market, there will be massive increase.

What was it, 2400 x 3 TH/s?

Have to take that into account.

 Not really.  It's already factored in when you use a figure like 20-25% per diff retarget.
Look at the numbers - the network hashing rate is currently 58,736 TH/s .  KNC's 2400 units X 3 TH/s causes a 12.25 percent increase and KNC will release that in two separate batches almost one month apart.  It's not significant enough to warrant extra consideration.
 

6 month by default.
You can check it here: http://mining-profit.com/advanced-calculator
It's the most popular question. I'll explain it on the website.

Most calculators are pretty crap  :P

But not mine! :D
I guarantee accuracy and quality of calculations! :P

I guarantee your failure if you don't listen to what others tell you.

What's wrong with you? Can you read? ???


I've already answered your question.

I know. The problem is that you don't display that on your site, and people that don't bother clicking the "advanced" link will get confused.

Last time I check in 2013 the calculations are off by 50% right now, that's a lot if you ask me

Yes, you're right.
I made a FAQ Page: http://mining-profit.com/faq - it can answer all main questions. Now I'm thinking of making interface more clear.

hey kickbit, are you planning on doing a similar calculator for Litecoin? I was just looking for an accurate calculator like this for the past couple of days, since many of them currently out there don't take into consideration many important factors. A Litecoin calculator would be really helpful, especially with the coming of the ASIC Scrypt miners. thx.

Yes, of course :) I'm working on it and other additional tools.
Litecoin, DOGE and other scrypt coins. 8)

the calculations is an estimate, far from accurate ~!

Lets say i'm using 1TH/s to mine bitcoins, how many % of profit i will lose when mining again with the same 1TH/s after difficulty increase?

That depends on how much the difficulty increases by...

Well how much It increases in average each time? And how often?