# Calculate reactance XC

Calculator and formulas for calculating the reactance of a capacitor

On this page you can calculate the reactance of a capacitor, the capacitance or the corresponding frequency. Two of the values must be known to calculate the third.

Reactance XC calculator

 What should be calculated? Reactance XC Capacitor C Frequency f Input Capacitor F mF µF nF pF Frequency Hz kHz MHz GHz Reactance mΩ Ω kΩ MΩ Result Capacitor C Frequency f Reactance XC Decimal places 0 1 2 3 4 6 8 10

### Formula for calculating reactance XC

The reactance can be calculated using the following formula. The frequency $$\displaystyle f$$and the capacity $$\displaystyle C$$ must be known.

$$\displaystyle X_C=\frac{1}{2 ·\ π · f · C }$$

### Capacity calculation formula

The capacity is calculated according to the following formula. The frequency $$\displaystyle f$$ and the reactance $$\displaystyle X_C$$ must be known.

$$\displaystyle C=\frac{1}{2 ·\ π · f · XC }$$

### Formula for calculating the frequency

The frequency is calculated according to the following formula. The reactance $$\displaystyle X_C$$ and the capacity $$\displaystyle C$$ must be known.

$$\displaystyle f=\frac{1}{2 ·\ π · X_C · C }$$