ASIC Miner Calculator — Profitability & Value
Free ASIC miner profitability calculator for Antminer S21, Whatsminer M66, and all top models. Calculate daily profit, electricity cost, ROI, ASIC value.
Estimated Profitability
Configure Your ASIC Miner
Select an ASIC model or enter your hashrate and power consumption to see profitability estimates, ROI projections, and device comparisons.
How to use ASIC Miner Calculator — Profitability & Value
The ASIC Mining Calculator estimates profitability for Bitcoin and other ASIC-mineable coins based on your hardware's rated hashrate and power consumption. Enter the ASIC model's hashrate (TH/s for SHA-256), power draw in watts, electricity rate, pool fee, and the current hardware acquisition cost to get daily profit and break-even timeline.
Use it before purchasing ASIC hardware to evaluate payback periods under different price scenarios. An S21 Pro at current difficulty might break even in 6 months at current prices but require 18+ months at a 50% lower BTC price, the calculator models both. Always check the manufacturer's hashrate versus independently benchmarked community results, which often run 5–10% lower.
What do the inputs mean?
Hashrate for SHA-256 ASIC miners is measured in TH/s (terahashes per second). Modern top-tier miners range from 100 to 300+ TH/s. Power consumption is the rated TDP from the manufacturer's spec sheet, add 10% for PSU inefficiency. Pool fee is typically 1–2% for major Bitcoin pools (Foundry, Antpool, F2Pool).
Hardware cost is used to calculate the payback period and ROI. Enter the current used market price for a realistic payback estimate, since new ASIC prices vary significantly during bull and bear markets. The calculator also models the effect of the next Bitcoin halving on your hardware's future revenue, showing pre- and post-halving profit projections.
How to interpret results correctly
The ASIC mining calculator outputs profitability for application-specific integrated circuit miners, which are purpose-built for a single hashing algorithm (SHA-256 for Bitcoin, Scrypt for Litecoin, X11 for Dash, etc.). Unlike GPU miners, ASICs cannot switch algorithms, their profitability is entirely dependent on one coin's price, difficulty, and block reward. The calculator's primary output is daily net profit after electricity, which tells you how many dollars per day the machine earns at current conditions.
The "days to break even" metric is the most actionable for ASIC investment decisions. Hardware pays for itself when (daily net profit × days) = hardware purchase price. At current conditions, if break-even exceeds 18 months, the investment carries significant risk because: 1) coin price may fall further; 2) network difficulty will increase as more ASICs deploy; 3) the next halving may cut block rewards. Always model break-even at 50% current coin price.
What scenarios can you model?
New ASIC purchase evaluation: enter the miner's hashrate (TH/s for Bitcoin, GH/s for Litecoin, etc.), power consumption, purchase price, and your electricity rate. Run the break-even analysis at current price, 50% below current, and 30% below current. If break-even exceeds 24 months even at current price, the investment is highly speculative.
Existing ASIC shutdown threshold: for miners you already own, the shutdown price is the coin price at which electricity cost equals mining revenue. Below this price, you pay more in electricity than you earn, mining is destroying capital. Calculate this threshold and set a price alert to notify you when to power down.
What should you check before you act?
- Before buying an ASIC: 1) Verify ASIC availability, secondary market prices often reflect manufacturer MSRP plus significant premium during bull markets. 2) Calculate the network's current hash difficulty growth rate (published monthly by mining analytics sites). 3) Factor in the next <a href="/halving-calculator/">halving date</a> and its impact on block rewards for the target coin.
- After calculating initial profitability: run a 6-month and 12-month projection assuming 5% monthly difficulty growth. If 12-month average profit remains positive after this growth assumption, the investment maintains reasonable return.
What mistakes make this calculation wrong?
- Buying ASICs at market cycle peaks when prices and profitability are highest. ASICs ordered during bull markets often arrive 3–6 months later (manufacturer lead times), by which time the coin may be in a bear market and profitability negative. Time ASIC purchases to coin bear markets when hardware prices are depressed.
- Ignoring ASIC resale depreciation in ROI calculations. Bitcoin ASICs lose 70–90% of value in the first 18–24 months as newer, more efficient models release. Factor this depreciation into your total cost model, the machine's value at the end of your mining period matters.
What is a realistic range to expect?
Bitcoin ASIC efficiency benchmarks (2026): frontier machines (Antminer S21, WhatsMiner M60) achieve 16–22 J/TH efficiency. Previous generation (Antminer S19 Pro) runs at 29.5 J/TH. At $0.05/kWh, S21-class miners generate $8–15/day net profit per unit at $73,000 BTC. At $0.10/kWh, profitability halves.
For institutional viability, break-even under 12 months at current prices is the industry benchmark. Retail miners with higher electricity rates (above $0.08/kWh) find it difficult to compete with industrial operations at $0.02–0.04/kWh, which become profitable even in bear markets.
Execution templates you can reuse
ASIC profitability workflow: 1) Get exact specs (hashrate, power draw) from the manufacturer test report, not marketing materials. 2) Confirm your <a href="/electricity-cost-calculator/">electricity rate</a> including demand charges if applicable. 3) Enter current network difficulty and projection. 4) Calculate break-even at current and 50% lower price. 5) Compare to buying and holding equivalent BTC for the same capital.
Halving preparation: 6 months before the next halving, re-run this calculator with 50% block reward as input. If profitability at halved reward + expected difficulty reduction is still positive at your electricity rate, mining through the halving is rational; otherwise, plan to sell the ASIC before the halving, when market prices are still inflated.
Data hygiene and model maintenance
Monitor actual power consumption monthly using smart plugs with energy monitoring. ASIC power draw can creep up 5–10% as chips age and thermal paste degrades, recalibrate your electricity cost estimate accordingly.
Track hashrate output daily via pool dashboard. A sudden hashrate drop (>5%) without hardware changes indicates chip degradation, overheating, or firmware issues. Addressing these early prevents permanent efficiency loss.
Final validation before capital deployment
Verify miner output: connect the ASIC to a mining pool and check the pool's reported hashrate against the manufacturer spec. Consistent 5%+ variance below spec indicates miner issues. Cross-check against the calculator's daily coin output for the same pool efficiency factor.
Validate break-even formula: (hardware cost) / (daily net profit) = days to break even. For a $3,000 ASIC earning $10/day net: 3,000/10 = 300 days. Confirm the calculator shows the same figure.
Where these numbers come from
This calculator is driven by 11 tracked values. The most recent hand verification was 18 August 2026. Each value records the page it was read from, so you can check it rather than take our word for it — the full ledger is on the methodology page.
| Value | On this page | Source of record | Verified |
|---|---|---|---|
| Dash consensus / emission curve | 0.4109 DASH | docs.dash.org protocol | 2026-08-18 |
| Zcash consensus / halving schedule | 1.25 ZEC | zips.z.cash protocol | 2026-08-02 |
| Zcash consensus / target block time | 75 seconds | zips.z.cash protocol | 2026-08-02 |
| Bitcoin consensus / halving schedule | 3.125 BTC | github.com/bitcoin/bitcoin protocol | — |
| Bitcoin consensus / target block time | 600 seconds | blockchain.com secondary | — |
| Dash consensus / target block time | 150 seconds | docs.dash.org protocol | — |
Showing 6 of 11. 4 of these are still pinned to a secondary guide rather than the statute itself and are in the re-verification queue. A dash under “Verified” means the value carries over from the initial audit without an individually dated re-check — not that it is known to be stale. See how we verify.
Authoritative sources
Frequently asked questions
Is Antminer S21 profitable in 2026?
At $0.06/kWh electricity and BTC near $73,700, an Antminer S21 (200 TH/s, 3,500W) earns roughly $7-9 gross per day and spends about $5 on power, netting $2-4 daily. ROI on the $3,500 unit price is typically 24-36 months in current conditions.
How is ASIC mining profitability calculated?
Profit = (Hashrate / Network Hashrate) × Daily Block Reward × BTC Price - (Power Draw × 24h × $/kWh) - Pool Fee. Network hashrate is currently around 850 EH/s. The bigger your share of total hashrate, the larger your share of daily mined coins.
How much electricity does an Antminer S21 use?
The S21 Hyd draws 5,360W and the S21 Pro about 3,510W. Running 24/7, an S21 Pro consumes around 84 kWh/day, or $5 daily at $0.06/kWh and over $15 daily at $0.18/kWh — making power cost the single biggest variable in ASIC mining profitability.
What is the most common ASIC mining mistake?
Forgetting to factor in difficulty growth, which has averaged about 30-50% per year over the past decade. A miner that's break-even today can be unprofitable in 6 months once difficulty rises. Always model at least 12 months of projected difficulty when estimating ROI.
Antminer S21 vs Whatsminer M66 — which is more profitable?
The Whatsminer M66 (298 TH/s, 5,513W, ~18.5 J/TH) offers slightly better efficiency than the S21 Pro (~16.5 J/TH at 234 TH/s). Whatsminer wins on raw output per unit, but Bitmain's S21 has wider availability and better firmware support. Cost per TH matters more than brand.
What break-even electricity price kills ASIC mining?
For modern ASICs around 17 J/TH at $73,700 BTC, break-even sits near $0.10-0.12/kWh. Above that, you mine at a loss. China, Texas, Kazakhstan, and parts of Latin America with $0.04-0.06/kWh rates remain the most viable industrial mining locations.
