🔧 Circuit Design Calculator Hub
Voltage Divider Calculator
Vout = Vin × (R₂ / (R₁ + R₂))
Series Resistor Calculator
Rtotal = R₁ + R₂ + R₃
Parallel Resistor Calculator
1/R = 1/R₁ + 1/R₂ + 1/R₃
Battery Life Calculator
Battery Life = Capacity / Current
PCB Trace Width Calculator
Width ≈ Current / (Thickness × 0.024)