Wh converters | Convert from Watt-hour

Watt-hour Conversion Formulas

Watt-hour to Watt-second Conversion Formula

To convert from Watt-hour (Wh) to Watt-second (Ws), use the following formula:

$\textbf{ Watt-second } (Ws)$

$= 60 \times 60\times \textbf{ Watt-hour } (Wh)$

$= 3600\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Watt-minute Conversion Formula

To convert from Watt-hour (Wh) to Watt-minute (Wm), use the following formula:

$\textbf{ Watt-minute } (Wm)$

$= 60 \times 60 \times \frac{1}{60}\times \textbf{ Watt-hour } (Wh)$

$= 60\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Milliwatt-hour Conversion Formula

To convert from Watt-hour (Wh) to Milliwatt-hour (mWh), use the following formula:

$\textbf{ Milliwatt-hour } (mWh)$

$= 60 \times 60 \times \frac{1}{3.6}\times \textbf{ Watt-hour } (Wh)$

$= 1000\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Kilowatt-hour Conversion Formula

To convert from Watt-hour (Wh) to Kilowatt-hour (kWh), use the following formula:

$\textbf{ Kilowatt-hour } (kWh)$

$= 60 \times 60 \times \frac{1}{60 \times 60 \times 1000}\times \textbf{ Watt-hour } (Wh)$

$= 0.001\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Megawatt-hour Conversion Formula

To convert from Watt-hour (Wh) to Megawatt-hour (MWh), use the following formula:

$\textbf{ Megawatt-hour } (MWh)$

$= 60 \times 60 \times \frac{1}{60 \times 60 \times 10^{6}}\times \textbf{ Watt-hour } (Wh)$

$= 10^{-6}\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Gigawatt-hour Conversion Formula

To convert from Watt-hour (Wh) to Gigawatt-hour (GWh), use the following formula:

$\textbf{ Gigawatt-hour } (GWh)$

$= 60 \times 60 \times \frac{1}{60 \times 60 \times 10^{9}}\times \textbf{ Watt-hour } (Wh)$

$= 10^{-9}\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Joule Conversion Formula

To convert from Watt-hour (Wh) to Joule (J), use the following formula:

$\textbf{ Joule } (J)$

$= 60 \times 60\times \textbf{ Watt-hour } (Wh)$

$= 3600\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Kilojoule Conversion Formula

To convert from Watt-hour (Wh) to Kilojoule (kJ), use the following formula:

$\textbf{ Kilojoule } (kJ)$

$= 60 \times 60 \times \frac{1}{1000}\times \textbf{ Watt-hour } (Wh)$

$= 3.6\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Megajoule Conversion Formula

To convert from Watt-hour (Wh) to Megajoule (MJ), use the following formula:

$\textbf{ Megajoule } (MJ)$

$= 60 \times 60 \times \frac{1}{10^{6}}\times \textbf{ Watt-hour } (Wh)$

$= 0.0036\times \textbf{ Watt-hour } (Wh)$

Watt-hour to Gigajoule Conversion Formula

To convert from Watt-hour (Wh) to Gigajoule (GJ), use the following formula:

$\textbf{ Gigajoule } (GJ)$

$= 60 \times 60 \times \frac{1}{10^{9}}\times \textbf{ Watt-hour } (Wh)$

$= 0.0000036\times \textbf{ Watt-hour } (Wh)$

Watt-hour to calorie Conversion Formula

To convert from Watt-hour (Wh) to calorie (cal), use the following formula:

$\textbf{ calorie } (cal)$

$= 60 \times 60 \times \frac{1}{4.184}\times \textbf{ Watt-hour } (Wh)$

$= 860.42065009560229446\times \textbf{ Watt-hour } (Wh)$

With $\frac{1}{4.184}$ is the ratio between the base units calorie (cal) and Joule (J).

Watt-hour to Kilocalorie Conversion Formula

To convert from Watt-hour (Wh) to Kilocalorie (kcal), use the following formula:

$\textbf{ Kilocalorie } (kcal)$

$= 60 \times 60 \times \frac{1}{4.184} \times \frac{1}{1000}\times \textbf{ Watt-hour } (Wh)$

$= 0.86042065009560229446\times \textbf{ Watt-hour } (Wh)$

With $\frac{1}{4.184}$ is the ratio between the base units calorie (cal) and Joule (J).

What is a Watt-Hour (Wh)?

Ever looked at the back of a battery pack and felt confused by the numbers? You're not alone!

One of the most important measurements you'll see is the Watt-hour (Wh).

Think of it as the fuel gauge for your electronic devices. This simple guide will break down precisely what a Wh is and why it matters.

What Does a Watt-Hour Actually Measure?

A Watt-hour (Wh) is a unit that measures energy. Specifically, it tells you how much energy a device uses over a specific period.

The concept is simple: one Watt-hour is the amount of energy consumed when one watt of power is used for precisely one hour.

A helpful analogy is a car's gas tank. The Watt-hour rating on a battery is like the size of the tank—it tells you the total amount of energy it can store.

The power your device draws (measured in Watts) is like how fast you're driving and using up that gas.

A battery with a higher Wh rating holds more energy and can power your device for longer, just like a larger gas tank lets you drive farther.

Watt-Hours in Everyday Life

You'll find Wh ratings on many of the rechargeable devices you use daily. It's a key indicator of battery capacity and runtime. Some common examples include:

Laptops: A higher Wh battery means you can work or stream movies for longer without plugging in.
Smartphones: The Wh rating helps determine how long your phone will last on a single charge.
Power Banks: This is one of the most critical specs! A 100 Wh power bank holds enough energy to be the maximum size allowed on most airlines.
Electric Vehicles (EVs): EV battery capacity is measured in thousands of Watt-hours, or kilowatt-hours (kWh).

How to Convert Watt-Hours to Joules

The Watt-hour is directly related to the joule (J), which is the standard scientific unit for energy. The conversion is straightforward:

1 Watt-hour = 3,600 Joules

This is because a watt is defined as one joule per second, and there are 3,600 seconds in an hour (60 seconds × 60 minutes).

What's the Difference Between a Watt-Hour (Wh) and a Kilowatt-Hour (kWh)?

A kilowatt-hour (kWh) is simply 1,000 Watt-hours. The prefix "kilo-" means one thousand.

You're probably most familiar with kWh from your home electricity bill. Utility companies use this larger unit to measure your household's monthly energy consumption.

So, when you see that you used 500 kWh last month, it means you used 500,000 Watt-hours of energy.

What is a Watt-Hour (Wh)?

Ever looked at the back of a battery pack and felt confused by the numbers? You're not alone!

One of the most important measurements you'll see is the Watt-hour (Wh).

Think of it as the fuel gauge for your electronic devices. This simple guide will break down precisely what a Wh is and why it matters.

What Does a Watt-Hour Actually Measure?

A Watt-hour (Wh) is a unit that measures energy. Specifically, it tells you how much energy a device uses over a specific period.

The concept is simple: one Watt-hour is the amount of energy consumed when one watt of power is used for precisely one hour.

A helpful analogy is a car's gas tank. The Watt-hour rating on a battery is like the size of the tank—it tells you the total amount of energy it can store.

The power your device draws (measured in Watts) is like how fast you're driving and using up that gas.

A battery with a higher Wh rating holds more energy and can power your device for longer, just like a larger gas tank lets you drive farther.

Watt-Hours in Everyday Life

You'll find Wh ratings on many of the rechargeable devices you use daily. It's a key indicator of battery capacity and runtime. Some common examples include:

Laptops: A higher Wh battery means you can work or stream movies for longer without plugging in.
Smartphones: The Wh rating helps determine how long your phone will last on a single charge.
Power Banks: This is one of the most critical specs! A 100 Wh power bank holds enough energy to be the maximum size allowed on most airlines.
Electric Vehicles (EVs): EV battery capacity is measured in thousands of Watt-hours, or kilowatt-hours (kWh).

How to Convert Watt-Hours to Joules

The Watt-hour is directly related to the joule (J), which is the standard scientific unit for energy. The conversion is straightforward:

1 Watt-hour = 3,600 Joules

This is because a watt is defined as one joule per second, and there are 3,600 seconds in an hour (60 seconds × 60 minutes).

What's the Difference Between a Watt-Hour (Wh) and a Kilowatt-Hour (kWh)?

A kilowatt-hour (kWh) is simply 1,000 Watt-hours. The prefix "kilo-" means one thousand.

You're probably most familiar with kWh from your home electricity bill. Utility companies use this larger unit to measure your household's monthly energy consumption.

So, when you see that you used 500 kWh last month, it means you used 500,000 Watt-hours of energy.

Convert Energy from Watt-hour (Wh) to other units
Multiple conversions

On This Page

Watt-hour Conversion Formulas

Watt-hour to Watt-second Conversion Formula

Watt-hour to Watt-minute Conversion Formula

Watt-hour to Milliwatt-hour Conversion Formula

Watt-hour to Kilowatt-hour Conversion Formula

Watt-hour to Megawatt-hour Conversion Formula

Watt-hour to Gigawatt-hour Conversion Formula

Watt-hour to Joule Conversion Formula

Watt-hour to Kilojoule Conversion Formula

Watt-hour to Megajoule Conversion Formula

Watt-hour to Gigajoule Conversion Formula

Watt-hour to calorie Conversion Formula

Watt-hour to Kilocalorie Conversion Formula

What is a Watt-Hour (Wh)?

What Does a Watt-Hour Actually Measure?

Watt-Hours in Everyday Life

How to Convert Watt-Hours to Joules

What's the Difference Between a Watt-Hour (Wh) and a Kilowatt-Hour (kWh)?

List Watt-hour Converters

What is a Watt-Hour (Wh)?

What Does a Watt-Hour Actually Measure?

Watt-Hours in Everyday Life

How to Convert Watt-Hours to Joules

What's the Difference Between a Watt-Hour (Wh) and a Kilowatt-Hour (kWh)?

Convert Energy from Watt-hour (Wh) to other unitsMultiple conversions

On This Page

Convert Energy from Watt-hour (Wh) to other units
Multiple conversions