Use Wh to mAh conversion calculator for * Wh(watt-hours) to mAh(milliamp-hours) *conversion calculation.

Input the energy in watt-hours, the voltage in volts (V) and click the Calculate button

**More Tool**

**How to convert watt-hour (Wh) to milliampere-hour (mAh)**

**Formula :**

**mAh = Wh * 1000/v**

The electric charge ** Q(mAh) in milliamp-hours(mAh) is equal to 1000 times the energy E(Wh) in watt-hours (Wh) **divided by the voltage V(v) in volts(V):

**Q(mAh) = 1000 * E (Wh)/V(in volts)**

So that you can define milliamp-hours(mAh) is equal to 1000 times watt-hours(Wh) divided by volts:

**milliamp-hours = 1000 * watt-hours/volts or mAh=1000*Wh/v**

** **

Let’s understand with an example

**Example 1: 32.4 Wh to mAh**

What is the electric charge in milliamp-hour(mah) when the energy consumption is 32.4 watt-hour(Wh)

and the voltage is 15 volts.

Q = 32.4Wh * 1000/15V = **2160mAh**

**Example 2 : 40.88 Wh to mAh**

Find the electric charge in milliamp-hours when the energy consumption is **40.88** watt-hours and voltage is 5 volts.the electric charge Q is equal to 1000 times 2 watt-hours, divided by 5 volts:

Q = 1000 * **40.88**Wh/5V = **8,176mAh**

**Example 3 :** **100Wh to mAh**

As we know generally the mAh capacity of a Lithium battery-based is mentioned relative to a Lithium cell, which has a voltage of 3.7V.

Q = 1000 * **100**Wh/3.7V = **27,027mAh**

**Example 3 :** **160 Wh to mAh**

Q = 1000 * **160**Wh/3.7V = **43,243.24mAh**

#### If you know the voltage, you can apply this formula: To go from Wh to mAh, divide Wh by Voltage, and multiply by 1000.

**Q(mAh) = 1000 × E (Wh) / V(V)**

**For example:**

Energy in watt hour is, E(Wh) = 2 Wh

**Voltage is = 3.7 V**

**Q(mAh) = 1000 x E(Wh) / V = 1000 x 2 / 3.7 = 540.54 mAh**

Let’s take One Example, I have a battery with 2**0,000**** mAh** battery rated at 10V, then the power(wh) should be 2**0,000**mAh * 10V / 1000 =** 200Wh**

**Watt-Hour (Wh):-** A unit of electrical energy equal to the power of one watt in use for one hour; often used as a unit of electricity consumption.

**Milliampere-Hour (mAh):-** An milliamp-hour (mAh) is a unit for measuring electric power over time. (mAh) is often used to describe the total amount of energy, a battery can store at one time. it’s the easiest way to distinguish the capacity of a battery. The higher the mAh, the longer the battery will last.

**Volt:-** A volt is a unit to measure the force of the electric current.

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