Bitcoin network, live

Difficulty, network hashrate, the next adjustment and the countdown to the next halving – and what all of it means for your own miner at home.

Difficulty

127.48 T

Last adjustment +0.99 %

Network hashrate

917 EH/s

3-day average

Block height

963,424

Currently 3.125 BTC per block

Next difficulty adjustment

Every 2016 blocks, roughly every two weeks.

Estimated change

-1.36 %

Period 88.9 % done

Blocks to go: 224
At block: 963,648
Expected: Aug 23, 2026
Current block time: 10.2 min

Blocks faster than 10 minutes push the difficulty up, slower blocks push it down.

Countdown to halving #5

At block 1,050,000 · April 2028

601 days

05 hours

19 min

59 sec

Epoch progress 58.8 %

Block subsidy

then halves to

3.125 → 1.5625 BTC

Projected with 10 minutes per block: over two years the difficulty adjustment pulls any deviation back to that average.

What this means for your miner

At the current difficulty, this is the average waiting time until a miner finds a block on its own. It is an average, not a deadline – solo mining is a lottery where every single block is a fresh draw.

Miner	Hashrate	Average wait for a block
Bitaxe Copperzilla	1.30 TH/s	13,346 years	View
Bitaxe Gamma	1.30 TH/s	13,346 years	View
Nerdaxe Gamma	1.30 TH/s	13,346 years	View
Sovereign Stack V1	1.30 TH/s	13,346 years	View
Bitaxe GT	2.15 TH/s	8,070 years	View
Nerdaxe Gaia	2.60 TH/s	6,673 years	View
Bitaxe 702	4.20 TH/s	4,131 years	View
NerdQaxe ++	4.80 TH/s	3,615 years	View
NerdQaxe Copper Pro	4.80 TH/s	3,615 years	View
Avalon Nano 3s	6.00 TH/s	2,892 years	View
NerdQaxe++ Hydro	6.00 TH/s	2,892 years	View
NerdQX	8.00 TH/s	2,169 years	View
NerdOctaxe	12.00 TH/s	1,446 years	View
NerdOctaxe Hydro	14.00 TH/s	1,239 years	View

Formula: difficulty × 2³² ÷ hashrate. Want to add electricity cost and the value of a block? Mining calculator

Why the difficulty exists

Bitcoin wants a block roughly every ten minutes – no matter whether ten computers or a million machines are mining. Every 2016 blocks the network compares how long the last period actually took and corrects the difficulty accordingly, by at most a factor of four in either direction. That is the whole regulating mechanism: no committee, no vote, just arithmetic that every node performs identically.

What happens at a halving

Every 210,000 blocks the reward for a new block is cut in half. It started at 50 BTC in 2009; today it is 3.125 BTC, and after the next halving it will be 1.5625 BTC. This is how the 21 million cap is enforced – not by a rule that stops issuance, but by a series that keeps halving until nothing is left to halve.

Frequently asked questions

What is the Bitcoin mining difficulty?

The difficulty determines how hard it is to find a valid block. Every 2016 blocks – roughly every two weeks – the network adjusts it so that a block takes about ten minutes on average, no matter how much hashrate is online.

When is the next Bitcoin halving?

The next halving happens at block 1,050,000, estimated for April 2028. The block subsidy then drops from 3.125 to 1.5625 BTC.

Does the difficulty affect my solo mining chances?

Yes, directly. Your expected waiting time for a block is difficulty × 2^32 ÷ your hashrate. If the difficulty rises, the wait gets longer with the same hardware.

Why does the estimated adjustment keep changing?

It is extrapolated from the blocks found so far in the current period. Early in a period a few fast or slow blocks move the estimate a lot; it stabilises towards the end.

Data: mempool.space · updated Aug 21, 12:32 (cached for 5 min)