If you would start mining RIGHT NOW with an antminer s3 you would make 305$ after electricity costs. After 16 difficulty adjustments of 10% you would lose money.
Don't throw your money out of the window, nethash is rising fast !
daily$ electricity profit days
4,03 0,69 46,76 14
3,627 0,69 87,878 28
3,2643 0,69 123,9182 42
2,93787 0,69 155,38838 56
2,644083 0,69 182,745542 70
2,3796747 0,69 206,4009878 84
2,14170723 0,69 226,72488902 98
1,927536507 0,69 244,050400118 112
1,7347828563 0,69 258,6773601062 126
1,5613045707 0,69 270,8756240956 140
1,4051741136 0,69 280,888061686 154
1,2646567022 0,69 288,9332555174 168
1,138191032 0,69 295,2079299657 182
1,0243719288 0,69 299,8891369691 196
0,9219347359 0,69 303,1362232722 210
0,8297412623 0,69 305,092600945 224
0,7467671361 0,69 305,8873408505 238
0,6720904225 0,69 305,6366067654 252
Sorry, i forgot to add the 10% faster adjustment period because of the rising nethashrate.
That makes the calculation even worse.
daily$ electricity profit days
4,03 0,69 42,084 12,6
3,627 0,69 79,0902 25,2
3,2643 0,69 111,52638 37,8
2,93787 0,69 139,849542 50,4
2,644083 0,69 164,4709878 63
2,3796747 0,69 185,76088902 75,6
2,14170723 0,69 204,052400118 88,2
1,927536507 0,69 219,6453601062 100,8
1,7347828563 0,69 232,8096240956 113,4
1,5613045707 0,69 243,788061686 126
1,4051741136 0,69 252,7992555174 138,6
1,2646567022 0,69 260,0399299657 151,2
1,138191032 0,69 265,6871369691 163,8
1,0243719288 0,69 269,9002232722 176,4
0,9219347359 0,69 272,822600945 189
0,8297412623 0,69 274,5833408505 201,6
0,7467671361 0,69 275,2986067654 214,2
0,6720904225 0,69 275,0729460889 226,8
If you want to invest in bitcoins, you should rather buy the coins directly. (and send me a bit because i helped you to avoid making a mistake
)