Crypto Mining Profitability Chart: Formula, ROI & Fees

A crypto mining profitability chart often starts with gross revenue rather than the amount that reaches your wallet. Pool fees, electricity, downtime and changing network conditions can reduce that figure. This guide explains the formula behind the chart and applies it to a worked Bitcoin mining example.

How to read a mining profitability chart

A mining profitability chart may plot gross revenue per unit of hashrate, such as USD per day per TH/s. Multiply that value by your ASIC miner’s hashrate before subtracting operating costs.

Read the Y-axis label first. A line showing USD per TH/s cannot be compared directly with profit for a complete device. Check whether the X-axis uses a linear or logarithmic scale. A logarithmic scale compresses large historical changes and makes percentage moves easier to compare.

A falling profitability line does not identify a single cause. It may reflect a lower coin price, higher network difficulty, a halving or several changes at once.

Network difficulty affects the expected reward attached to each unit of hashrate. Sharp steps may align with difficulty adjustments or halvings. Gradual declines may reflect growing network competition. Compare the chart with price and network metrics before assigning a cause.

The profitability formula behind the number

An ASIC miner produces hashrate. Its expected share of block rewards corresponds to its share of total network hashrate. That relationship provides the starting point for many mining calculators.

Daily profit = (device hashrate ÷ network hashrate) × blocks per day × reward per block × coin price − power cost − pool fee

For Bitcoin, the reward input may include the block subsidy and transaction fees. The treatment depends on the pool’s payout scheme. Copy the pool’s definition instead of assuming every calculator uses the same reward base.

Revenue and profit are different figures. Revenue excludes expenses. Profit deducts electricity, pool fees and operating overhead:

Daily power cost = device power in kW × 24 × electricity rate per kWh

Pool fee = fee percentage × fee calculation base

Some pools apply the percentage to gross rewards. Others describe their charge as a discount from an FPPS reference rate. Check the pool’s documentation before comparing percentages.

The calculation also assumes that the miner stays online and delivers its rated hashrate. Rejected shares, thermal throttling, cooling power and downtime reduce the result. A profitability chart is a starting input, not a wallet forecast.

Worked example: calculating profit for one ASIC

Use stable hardware specifications and refresh the network inputs. Bitmain rates the Antminer S21 at 200 TH/s and 3,500 W. Running continuously at that rated power would consume 84 kWh per day.

This example uses an illustrative chart revenue of $12 per day. It also assumes electricity at $0.10/kWh and a 2.5% pool fee. These figures are calculation inputs, not live market values.

The $12 gross figure falls to $3.30 before cooling, repairs and downtime. This difference explains why a calculator ranking can look attractive while the remaining operating margin is small.

For a live Bitcoin calculation, verify the inputs against Bitcoin pool data. Record price, difficulty and network hashrate at the same time. Mixing observations from different periods distorts the comparison.

How pool fees and payout schemes change your real number

A mining pool combines hashrate and distributes rewards among participating miners. The payout scheme determines how short-term block variance is divided between the pool and its miners.

PPS, FPPS and PPLNS allocate short-term mining variance differently. Their advertised fee percentages are not enough for a complete comparison.

Check the coin page and payout scheme together. Mining-Dutch, for example, lists D-PPS at 1.50% and PPLNS at 1.00% for its Handshake pool. Those figures apply to that pool and coin.

PPLNS payments depend on which shares fall inside the pool’s reward window. Compare the fee, share-window rules, stale-share rate, transaction-fee treatment and payout threshold. Our guide to how pool fees affect payouts for small miners explains why the lowest percentage may not produce the largest wallet payment.

Why electricity cost matters to profitability

Electricity reduces profit dollar for dollar and lengthens the breakeven period. A 3.5 kW ASIC consumes 84 kWh during 24 hours at rated power. Near breakeven, even a small tariff difference can remove the operating margin.

Using the same $12 gross-revenue scenario and a $0.30 pool fee:

• At $0.06/kWh, power costs $5.04 and leaves $6.66 before overhead.
• At $0.10/kWh, power costs $8.40 and leaves $3.30 before overhead.
• At $0.20/kWh, power costs $16.80 and produces a $5.10 operating loss.

In this scenario, the electricity-only breakeven rate is about $0.139/kWh: $11.70 ÷ 84 kWh. The full breakeven rate is lower after adding cooling, ventilation and other equipment.

Use the electricity rate on the final bill, including applicable delivery charges and taxes. Add expected downtime and cooling consumption. A base tariff without those items can understate operating costs.

Network difficulty, halving and other metrics that move the chart

Bitcoin adjusts mining difficulty every 2,016 blocks against a target interval of 1,209,600 seconds. If those blocks arrive faster than the target, the next adjustment raises difficulty. Higher difficulty reduces the expected output of an unchanged ASIC.

The current block subsidy is 3.125 BTC before the next scheduled halving. Bitcoin halves the subsidy every 210,000 blocks. A halving cuts the subsidy component in half. Transaction fees may offset some of that change, but they do not follow a fixed schedule.

Price can rise while mining profitability falls. This can happen when network difficulty grows faster than the coin’s dollar price. The reverse can occur if difficulty falls.

Track price, difficulty, total network hashrate, block subsidy and transaction fees separately. A single profitability line combines their effects and cannot identify which input moved.

Calculating ROI and breakeven for your hardware

Static breakeven divides the delivered hardware and setup cost by daily net profit:

Breakeven days = hardware and setup cost ÷ daily net profit

If the setup in the worked scenario cost $3,000, dividing it by $3.30 gives about 909 days. This is a mathematical snapshot, not a forecast. It assumes that price, difficulty, uptime, pool terms and power costs remain unchanged.

A purchase-day breakeven estimate can differ materially from the operating result because its inputs change over time.

A monthly cash-flow model captures those changes more clearly. Recalculate revenue after difficulty adjustments. Reduce effective hashrate for expected downtime, then subtract cooling, repairs and payout costs. Breakeven occurs when cumulative net cash flow matches the equipment and infrastructure cost.

Avoid assuming a fixed hardware-degradation percentage without supporting data. Model measurable causes such as dust, heat, failed fans, power-supply losses and downtime. An ASIC may retain its nominal hashrate while interruptions reduce its monthly output.

Compare alternative SHA-256 coins only after checking liquidity, pool support and switching costs. A higher calculator estimate does not prove that a pool can pay reliably or that the market can absorb the mined amount.

What moves the number most: price, difficulty or electricity

The most influential variable depends on the time horizon. Three inputs deserve close attention:

1. Coin price changes dollar revenue directly. With every other input fixed, a 10% price move changes dollar revenue by about 10%.
2. Electricity rate controls a large part of the operating margin and may be known before deployment.
3. Network difficulty changes expected coin production and can invalidate a static ROI estimate.

Price provides upside and downside but cannot be controlled. Difficulty reflects network competition. Electricity is one of the inputs a miner can evaluate before choosing a site and machine.

Compare hardware by energy efficiency as well as daily revenue. Then test the machine at your billed electricity rate, a lower coin price and higher difficulty. A project that works only under its most favorable assumptions has little room for error.

Quick checklist before you trust a profitability chart

Confirm whether the displayed number means gross revenue or net profit. Record the power rate, network difficulty, coin price and block reward used by the calculator.

Read the pool’s payout method and subtract its fee. Add cooling, rejected shares and expected downtime instead of treating rated hashrate as guaranteed output.

Model breakeven as a sequence of cash flows. Dividing hardware cost by one day’s profit ignores later difficulty changes and interruptions.

Compare your downside scenario with live pool and coin data before choosing hardware or a mining pool.

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Источники

• S21 Specification — BITMAIN Support
• Bitcoin Developer Guide: Block Chain — Bitcoin.org
• Bitcoin Halving — Bitcoin.org
• Handshake Mining Pool: Reward Modes, Fees and Payouts — Mining-Dutch