**What is the rms value of voltage?**

The RMS value of a fluctuating voltage or current is its effective value. The corresponding steady DC constant value produces the same effect.

**How does RMS voltage become calculated?**

For a sinusoidal waveform, the RMS voltage V_{RMS} is calculated by multiplying the peak voltage value by 0.7071, which is equal to one divided by the square root of two.

**What is the difference between RMS and peak voltage?**

Peak values can be computed using the above formula’s RMS values, which meansÂ V_{P} = V_{RMS} Ã— âˆš2, provided the source is a pure sine wave. Thus, the peak value of the mains voltageÂ is approximately 120 Ã— âˆš2, or approximately 170 volts. The peak-to-peak voltage is around 340 volts.

**Formula:**

**RMS Value determined from Peak Value: V**_{P}

_{P}

**V _{RMS }= 0.7071 x V_{P}**

**RMS Value determined from Peak to Peak Value: V**_{PP}

_{PP}

**V _{RMS }= 0.35355 x V_{PP}**

**RMS Value determined from Average Voltage Value: V**_{AV}

_{AV}

**V _{RMS} = 1.11 x V_{AV}**

Click here for more **Electrical Calculators**