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Basic Circuit Calculators — Ohm's Law, Dividers & Power

Circuit calculator hub: parallel & series resistor total R, capacitor RC discharge time, dBm to watts & Ohm's law. Step-by-step DC & RF formulas.

Quick Answer

Ohm's Law: V = I × R. Voltage divider: Vout = Vin × R2/(R1+R2). Power: P = V × I. These three relationships solve most bench-level DC problems.

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Calculadora Série e Paralelo

Resistência equivalente — fórmula produto/soma

Descarga de Capacitor

Tempo RC & resistor bleeder

dBm para Watts

50 dBm = 100 W — tabela RF

Lei de Ohm

Calcule V, I, R ou P

Solve voltage, current, resistance, or power

Loaded and unloaded divider output voltage

Branch current in a parallel resistor network

Calculate watts, voltage, current, or resistance