Bitcoin Mining Calculator
NOTE: The BTC per block award dropped from 50 to 25 BTC per block November 28th, 2012. (source)
The current mining difficulty is 11,187,257. The next difficulty is estimated to change by 72.01% to 19,243,469 on block #243,935. That should be 1 weeks 3 days 19 hours 2 mins 56 seconds from now.
The network has mined 236,780 blocks. This has generated 11,309,825 BTC with an average value of $108.28 USD each. Worldwide BTC circulation is valued at $1,224,612,017.25 USD.
The pool has mined 912 blocks with a current value of $289,344.23 USD.
If you earn 50.00 BTC per block found with a value of $6.345268125 per BTC, mining with a difficulty of 1583177.847444 at 1200 Mh/s, power costing $0.15 per kilowatt hour @ 750 watts for the next 90 days, spending $privacy in startup costs:
| 24 hours | 1 month | 1 year | 90 days | |
| Est difficulty: | 1,583,178 | 1,614,841 | 2,007,852 | 1,678,714 |
| BTC earned: | 0.76238690 | 22.87160710 | 249.55698469 | 67.23425335 |
| Revenue: | $ 4.84 | $ 145.13 | $ 1,583.51 | $ 426.62 |
| Power cost: | $ 2.70 | $ 81.00 | $ 985.50 | $ 243.00 |
| Net revenue: | $ 2.14 | $ 64.13 | $ 598.01 | $ 183.62 |
Bitcoins per day: 0.76238690 BTC
Generate a block every: 9 weeks 2 days 14 hours 14 seconds
Break even in: Never
Break even on: Never
Net at 90 days: $ 192.38
Mining Hardware Comparison Table
| Video Card | MSRP (USD) | eBay™ (USD) | Hashrate (Mh/s) | Power (watts) | Mh/s per Dollar | Mh/s per Watt |
| BitForce Jalapeno | $149.00 | Unreleased | 4500 | 4.5 | 30.2013 | 1000 |
| BitForce Little Single SC | $649.00 | Unreleased | 30000 | 30 | 46.2250 | 1000 |
| BitForce Single SC | $1,299.00 | Unreleased | 60000 | 60 | 46.1894 | 1000 |
| BitForce MiniRig SC | $29,899.00 | Unreleased | 1500000 | 1500 | 50.1689 | 1000 |
| BitForce Single (FPGA) | $599.00 | $599.00 | 832 | 80 | 1.3890 | 10.40 |
| BitForce MiniRig (FPGA) | $15,295.00 | $15,295.00 | 25200 | 1250 | 1.6476 | 20.16 |
| ATI Radeon 7970 | $550.00 | $375.00 | 600 | 350 | 1.6000 | 1.71 |
| ATI Radeon 7950 | $450.00 | $289.00 | 450 | 300 | 1.5571 | 1.50 |
| ATI Radeon 6990 | $950.00 | $500.00 | 700 | 300 | 1.4000 | 2.33 |
| ATI Radeon 6970 | $369.00 | $199.00 | 400 | 200 | 2.0101 | 2.00 |
| ATI Radeon 6950 | $299.00 | $125.00 | 350 | 150 | 2.8000 | 2.33 |
| ATI Radeon 5970 | $599.00 | $289.00 | 700 | 325 | 2.4221 | 2.15 |
| ATI Radeon 5870 | $379.00 | $140.00 | 420 | 190 | 3.0000 | 2.21 |
| ATI Radeon 5850 | $259.00 | $99.00 | 270 | 150 | 2.7273 | 1.80 |
| ATI Radeon 5830 | $239.00 | $70.00 | 220 | 130 | 3.1429 | 1.69 |
| nVidia GeForce GTX 680 | $499.00 | $450.00 | 280 | 300 | 0.6222 | 0.93 |
| nVidia GeForce GTX 580 | $499.00 | $275.00 | 130 | 240 | 0.4727 | 0.54 |
| nVidia GeForce GTX 480 | $499.00 | $165.00 | 100 | 250 | 0.6061 | 0.40 |
For example, three ATI 5870s will hash at 400 Mh/s each for a total of 1200 Mh/s (1.2 Gh/s)
All information and statistics on this page should be treated as estimates and/or best guesses. While we try our best to make the math perfect we can not predict the future.