Calculator
Example Data Table
| Rig | GPUs | Hash per GPU | Total Power | Uptime | Pool Fee |
|---|---|---|---|---|---|
| Starter Rig | 2 | 32 MH/s | 390 W | 95% | 1% |
| Balanced Rig | 6 | 62 MH/s | 990 W | 97% | 1% |
| Tuned Rig | 8 | 78 MH/s | 1280 W | 98% | 0.8% |
Formula Used
The calculator estimates mining output by comparing your rig hash rate with the total network hash rate.
- Rig hash rate = GPU count × hash rate per GPU
- Total power = GPU count × GPU watts + extra rig watts
- Network hash rate from difficulty = difficulty × 2^32 ÷ block time
- Blocks per day = 86,400 ÷ average block time
- Gross coins per day = rig share × blocks per day × block reward × uptime
- Net coins = gross coins × (1 − pool fee − stale rate − dev fee)
- Daily energy cost = total watts ÷ 1000 × 24 × uptime × electricity rate
- Daily profit = coin revenue − electricity cost − maintenance cost
Difficulty formulas are approximate. Some networks use special difficulty rules. Use direct network hash rate when your coin reports it clearly.
How to Use This Calculator
- Enter your GPU model or rig name.
- Add the number of GPUs in the rig.
- Enter measured hash rate per card.
- Select the correct hash rate unit.
- Add watts per GPU and extra system power.
- Enter electricity rate, fees, uptime, and stale share rate.
- Add coin price, block reward, and block time.
- Choose difficulty mode or network hash rate mode.
- Press Calculate to view results above the form.
- Use CSV or PDF to save the estimate.
GPU Hash Rate Planning Guide
Why Hash Rate Matters
Hash rate shows how many guesses a mining device can test each second. A GPU rig may include one card or many cards. Each card has a rated speed for one algorithm. Real output changes with memory clocks, core clocks, drivers, heat, and power limits. This calculator keeps those factors visible. It turns basic rig data into expected daily and monthly mining estimates.
Start With Real Values
Good planning starts with honest input values. Use the measured hash rate from your mining software when possible. Do not use a perfect lab number unless you are still shopping. Add the real wall power for every card. Include risers, fans, motherboard draw, and power supply loss as extra rig power. Electricity cost is often the largest expense after hardware. Small power errors can change the profit result.
Understand Rewards
The reward estimate uses network difficulty, block reward, coin price, and your share of total work. Difficulty describes how hard it is to find a block. Higher difficulty lowers your expected coins. Pool fees and uptime reduce the final reward. Uptime matters because rigs stop for heat, updates, outages, and rejected shares. A stable rig with less speed can beat an unstable fast rig.
Compare Rig Settings
The calculator is also useful for comparison. Try one set of values for a stock GPU. Then try another set after tuning. Compare hash rate, watts, energy cost, and net profit. A better setting often gives fewer hashes but much better efficiency. Efficiency is shown as hash rate per watt. This number helps compare cards across builds.
Save Your Results
Use the export buttons after each calculation. The CSV file stores values for spreadsheets. The PDF button prints the visible summary to a simple document. Keep several exports while testing clocks or pool settings. Later, compare the files against real payouts from your pool dashboard. This helps reveal stale shares, wrong fees, or incorrect power readings.
Use Safe Estimates
Mining remains uncertain. Coin price can move fast. Network difficulty can rise without warning. Hardware can fail. Treat every result as an estimate, not a promise. Use safe wiring, good airflow, and realistic profit targets before expanding any rig.
Review results weekly as markets and difficulty change. Update inputs before buying hardware or signing power contracts. Conservative estimates protect your budget well.
FAQs
What is GPU hash rate?
GPU hash rate is the number of mining calculations a graphics card can perform each second. It is usually shown as H/s, KH/s, MH/s, GH/s, or TH/s depending on the algorithm.
Why is my real hash rate lower than expected?
Drivers, memory settings, heat, power limits, rejected shares, and miner settings can lower real output. Use mining software readings for better estimates.
Should I use difficulty or network hash rate?
Use difficulty when your coin reports reliable difficulty and block time. Use direct network hash rate when the network dashboard already provides it.
Does electricity cost affect profit strongly?
Yes. Mining runs all day, so small wattage errors can create large monthly cost differences. Always measure wall power when possible.
What is pool fee?
Pool fee is the percentage kept by your mining pool. It reduces your final coin reward after gross mining output is estimated.
What are stale shares?
Stale shares are submitted too late or rejected by the pool. They reduce payable work and should be included as a percentage loss.
What does efficiency mean?
Efficiency compares hash rate with power use. A higher hash rate per watt usually means better mining performance and lower electricity cost.
Is this calculator a guaranteed profit tool?
No. It gives an estimate from your inputs. Coin price, difficulty, pool luck, hardware stability, and fees can change actual results.