This **headphone power calculator** helps determine the **exact** amount of **power** required to drive headphones **effectively** by considering **sensitivity** and **impedance**.

Let’s say you have headphones with a

sensitivityof90 dB/mWand animpedanceof32 ohms. The calculator can help determine how muchpoweris needed to reach a desiredvolume level, such as110 dB, from anamplifieroraudio source.

## Headphone Power Calculator

Sensitivity (dB/mW) | Impedance (Ω) | Desired Volume (dB) | Required Power (mW) |
---|---|---|---|

90 | 32 | 110 | 100 |

95 | 250 | 105 | 10 |

102 | 64 | 115 | 19.95 |

88 | 16 | 100 | 15.85 |

92 | 40 | 108 | 50 |

98 | 150 | 112 | 25 |

85 | 24 | 95 | 35.48 |

100 | 300 | 118 | 50 |

## Headphone Power Calculation Formula

The formula for calculating headphone power is:

**P = 10^((dB - S) / 10)**

Where:

P= Power inmilliwatts(mW)dB= Desiredvolume levelin decibelsS= Headphonesensitivityin dB/mW

**For headphones with 90 dB/mW sensitivity, to reach 110 dB: P = 10^((110 – 90) / 10) = 100 mW**

## What is Headphone Power?

**Headphone power** refers to the **electrical energy** required to drive headphones and produce **sound** at a specific **volume level**. It’s typically measured in **milliwatts** (mW) or **watts** (W).

## What is Headphone Sensitivity?

**Headphone sensitivity** measures how **efficiently** headphones convert **electrical power** into **sound**. It’s expressed in **decibels per milliwatt** (dB/mW) and indicates how **loud** headphones will be at a given **power input**.

## What is Headphone Impedance (Ohms)?

**Headphone impedance** is the **electrical resistance** of headphones, measured in **ohms** (Ω). It affects how much **voltage** and **current** are needed to drive the headphones. **Higher impedance** headphones typically require more **voltage** to reach the same **volume level** as **lower impedance** ones.

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