The only calculator that tells you how many vias you need, how to arrange them, and what will fail

Profile: IPC • J-limit: 200 A/mm²

Calculate the optimal number of vias required for your current load. Includes thermal modeling, aspect ratio analysis, and manufacturability checks.

⚡︎ Current (A) Target DC current

○ Via Hole Diameter

▪︎ Barrel Plating

▭ Board Thickness

△ Ambient Temp (°C) Operating environment temp

☀︎ Max Temp Rise (°C) Allowable self-heating

Analyze thermal properties and electrical resistance of your via array.

Copper Thermal Conductivity (W/m·K) Material property at operating temp

FR-4 Thermal Conductivity (W/m·K) Dielectric thermal conductivity

Resistance (Ω)

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Power Loss (W)

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Temp Rise (°C)

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Thermal Resistance (°C/W)

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Current Density (A/mm²)

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Peak Temperature (°C)

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Values automatically update from Via Array Design tab calculations.

Automated manufacturability and reliability checks for your via design.

Run a calculation in Via Array Design tab to see validation results.

Save and compare different via configurations side-by-side.

No saved configurations yet. Click "Save Current Configuration" after running calculations.