Bitcoin network live: difficulty and halving countdown
Here you see how hard a block is to find right now and when the reward halves next. The figures refresh every five minutes, and for each device in our shop the page works out how long it would wait, on average, for a block of its own.
Difficulty
148.36 T
Last adjustment +5.54 %
Network hashrate
1,076 EH/s
3-day average
Block height
974,078
Currently 3.125 BTC per block
Next difficulty adjustment
Recalculated every 2,016 blocks, so about every 14 days.
Estimated change
-2.55 %
Period 17.4 % done
- Blocks to go
- 1,666
- At block
- 975,744
- Expected
- Nov 13, 2026
- Current block time
- 9.9 min
If blocks arrive faster than every 10 minutes on average, the difficulty rises at the next adjustment; if they come slower, it drops.
Countdown to halving #5
At block 1,050,000 · April 2028
Block subsidy
then halves to
3.125 → 1.5625 BTC
The forecast assumes 10 minutes per block. Over the years the difficulty adjustment evens out faster and slower stretches, so we do not extrapolate the current block time.
How long our devices wait for a block on average
From the current difficulty and the hashrate of each device in our range, the table works out the average wait until that device finds a block on its own. Each block is an independent chance, so the figure says nothing about when it will actually happen.
| Miner | Hashrate | Average wait until a block | |
|---|---|---|---|
| Bitaxe Gamma 601 | 1.30 TH/s | 15,533 years | View |
| Nerdaxe Gamma | 1.30 TH/s | 15,533 years | View |
| Bitaxe Gamma Copper Pro | 1.50 TH/s | 13,462 years | View |
| Bitaxe GT 801 | 2.15 TH/s | 9,392 years | View |
| Nerdaxe Gaia | 2.60 TH/s | 7,766 years | View |
| Nerdaxe Gaia Copper Pro | 3.00 TH/s | 6,731 years | View |
| Bitaxe Supra Hex 702 | 4.20 TH/s | 4,808 years | View |
| NerdQaxe ++ | 4.80 TH/s | 4,207 years | View |
| Avalon Nano 3S | 6.00 TH/s | 3,365 years | View |
| Bitaxe Gamma Hex 1300 | 10.50 TH/s | 1,923 years | View |
| NerdOctaxe | 12.00 TH/s | 1,683 years | View |
| NerdOctaxe Hydro | 14.00 TH/s | 1,442 years | View |
Calculated as difficulty × 2³² ÷ hashrate. What the device costs in electricity meanwhile is shown by the mining calculator.
What the difficulty is for
The more hashrate joins the network, the faster blocks would arrive if nothing pushed back. The difficulty is that counterweight: after 2,016 blocks every node checks whether the period took longer or shorter than two weeks and works out the new value, at most four times the old one or a quarter of it. For a home miner a higher difficulty means the same work and a longer wait.
What changes at a halving
The subsidy per block started at 50 BTC in 2009 and is halved every 210,000 blocks. It is 3.125 BTC at the moment and will be 1.5625 BTC after the next halving. That halving series is what caps the supply just below 21 million bitcoin. What a finder receives on top, the fees of the transactions in the block, is not halved.
Frequently asked questions
What does the difficulty actually measure?
How much hashing work a valid block takes on average: difficulty times 2^32 hashes. It is reset after every 2,016 blocks so that, despite growing hashrate, a block still appears about every ten minutes.
When is the next halving?
As things stand at block 1,050,000, expected around April 2028. From then on a new block carries 1.5625 instead of 3.125 BTC in subsidy; transaction fees still come on top.
How does the difficulty change the waiting time of my miner?
In direct proportion. If the difficulty rises by 5 %, your device waits on average 5 % longer for a block, even though it hashes just as fast as before. The waiting time is difficulty times 2^32, divided by the hashrate of your device.
Why does the expected change at the next adjustment jump around?
The estimate only uses the blocks already found in the current period. Shortly after an adjustment there are few of them, and a handful of fast or slow blocks shifts the forecast noticeably. It settles as the next adjustment draws closer.
Where can a miner from your shop mine solo?
On any solo pool you enter in AxeOS or NerdOS. The solo pool comparison lists the stratum address, the fee with its source and our own measurements for several solo pools, in alphabetical order and without a recommendation. One of them, pool.opensourceminers.de, is run by us.
Why do home miners wait so long for a block?
Because a home miner contributes only a sliver of the world's hashrate. A Bitaxe Gamma with 1.3 TH/s holds about 1.3 billionths of a network running at around 1,000 EH/s. Home miners have still found solo blocks, because every new block is another chance.
Does the difficulty change my electricity bill?
No. Your miner draws the same power whether the difficulty goes up or down. What changes is its share of the network hashrate and with it the chance per block. Running cost depends on power draw, hours and your rate, and the mining calculator works it out for every device.
Data: mempool.space · updated Nov 1, 05:57 (cached for 5 min)