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Calcimator

Mining Rig Build Calculator

Calculate total build cost, hashrate, power requirements, and efficiency for a custom GPU mining rig.

Inputs

Results

Total build cost ($)

$5,560.00

≈ 6 smartphones

Total hashrate (MH/s)

720

GPU cost ($)$4,800.00
Other components ($)$760.00
GPUs as % of build86.3
Total power draw (W)1,600
Recommended PSU (W)2,000
Monthly electricity ($)$115.20
Cost per MH/s ($)$7.72
Efficiency (MH/W)0.45
How to Use This Calculator
  1. Enter GPU model count and individual GPU hashrate and power consumption.
  2. Set motherboard, CPU, RAM, PSU, frame, SSD, and per-GPU riser costs.
  3. Input your electricity rate ($/kWh).
  4. Review total build cost, GPU cost vs. other components, and total hashrate.
  5. Check the recommended PSU wattage, monthly electricity cost, cost per MH/s, and efficiency (MH/W) to gauge the rig's value.

How the result changes with Number of GPUs

Number of GPUsTotal build cost ($)Total hashrate (MH/s)
2.8$3,130.00360
7.3$6,370.00840
13$11,230.001,560
17$14,470.002,040

What each input means

Number of GPUs
Number of GPUs in the rig. Common configurations: 6, 8, or 12 GPUs.
GPU price each ($)
Cost per GPU card.
GPU hashrate each (MH/s)
Mining hashrate per GPU in megahashes per second for your target algorithm.
GPU power each (W)
Power draw per GPU at the wall while mining.
Motherboard ($)
Mining motherboard with enough PCIe slots (e.g., B250 Mining Expert).
CPU ($)
Budget CPU — mining is GPU-bound so a Celeron/Pentium suffices.
RAM ($)
8GB is sufficient for most mining OS setups.
PSU ($)
Power supply unit cost. May need multiple PSUs for large rigs.
Frame/case ($)
Open-air mining frame.
SSD ($)
Small SSD for the mining OS (120-240GB is enough).
PCIe riser per GPU ($)
USB PCIe riser cable cost per GPU.
Electricity rate ($/kWh)
Your electricity cost per kilowatt-hour.

What each result means

Total build cost ($)
Complete hardware cost for the mining rig.
GPU cost ($)
Combined cost of all GPUs.
Other components ($)
Motherboard, CPU, RAM, PSU, frame, SSD, and risers.
GPUs as % of build
What percentage of total cost goes to GPUs.
Total hashrate (MH/s)
Combined hashrate of all GPUs.
Total power draw (W)
Estimated total system power including GPUs and system overhead.
Recommended PSU (W)
Minimum PSU wattage with 20% headroom for safe operation.
Monthly electricity ($)
Estimated monthly electricity cost running 24/7.
Cost per MH/s ($)
Hardware investment per megahash of hashrate — lower is better value.
Efficiency (MH/W)
Hashrate per watt of power — higher is more efficient.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Number of GPUs = 6, GPU price each ($) = 800, GPU hashrate each (MH/s) = 120, GPU power each (W) = 250 = 12 input(s) provided
  2. Calculate Total build cost
    Total build cost = totalGpuCost + motherboardPrice + cpuPrice + ramPrice + psuPrice + framePrice...
    5560 = $5,560
  3. Calculate Total hashrate
    Total hashrate = numGpus * gpuHashrateMH
    720 = 720
  4. Calculate GPU cost
    GPU cost = numGpus * gpuPriceEach
    4800 = $4,800
  5. Calculate Other components
    Other components = round((totalBuildCost - totalGpuCost) * 100) / 100
    760 = $760

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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