Books vs eBooks Calculator
Books vs eBooks Calculator
Enter the values to calculate the carbon footprint of reading books
Carbon Footprint of Physical Books (kg CO2e): 0
Carbon Footprint of Ereader (kg CO2e): 0
Annual Paper Usage (pages): 0
Which has a lower carbon footprint: physical books or ebooks? Know by using our Books vs eBooks Calculator. Enter your reading habits and other details into the calculator to see the impact.
What is Books vs eBooks?
Books vs eBooks is a comparison of the environmental impact of reading physical books versus using an ereader. This calculator helps you understand which option is more ecofriendly based on your reading habits.
How to Use the Calculator
To use the calculator, you need to input the following details:
 Books Read Annually: Enter the number of physical books you read per year. For example,
12
.  Ereader Lifespan (years): Enter the average lifespan of your ereader in years. For example,
4
.  Energy Consumed per Book (kWh): Enter the energy consumed by your ereader for each book read. For example,
10
.  Carbon Footprint of a Book (kg CO2e): Enter the carbon footprint of producing one physical book. For example,
2.71
.  Carbon Footprint of an Ereader (kg CO2e): Enter the carbon footprint of producing an ereader. For example,
30
.  Paper Used per Book (pages): Enter the number of pages in an average book you read. For example,
500
.
Formula
The calculator uses the following formulas:
1. Carbon Footprint of Physical Books:
$$\text{PhysicalBooksCarbonFootprint}=\text{BooksReadAnnually}\times \text{Carbon Footprint of a Book}$$
2. Carbon Footprint of Ereader:
$$\text{EreaderCarbonFootprint}=\left(\frac{\text{CarbonFootprintofanEreader}}{\text{EreaderLifespan}}\right)+(\text{EnergyConsumedperBook}\times \text{BooksReadAnnually})$$
$$\text{AnnualPaperUsage}=\text{BooksReadAnnually}\times \text{Paper Used per Book}$$
Variables
Variable  Description 

Books Read Annually  Number of books read per year 
Ereader Lifespan (years)  Lifespan of the ereader in years 
Energy Consumed per Book (kWh)  Energy used by ereader per book read 
Carbon Footprint of a Book (kg CO2e)  Carbon footprint per physical book 
Carbon Footprint of an Ereader (kg CO2e)  Carbon footprint of producing an ereader 
Paper Used per Book (pages)  Number of pages per book 
Calculation Examples
Example 1
For example your input is:
 Books Read Annually:
12
 Ereader Lifespan (years):
4
 Energy Consumed per Book (kWh):
10
 Carbon Footprint of a Book (kg CO2e):
2.71
 Carbon Footprint of an Ereader (kg CO2e):
30
 Paper Used per Book (pages):
500
Calculation Steps:
1. Physical Books Carbon Footprint:

Ereader Carbon Footprint:
$$\left(\frac{30}{4}\right)+(10\times 12)=7.5+120=127.5\text{kgCO2e}$$
3. Annual Paper Usage:
Example 2
For example the input is
 Books Read Annually:
20
 Ereader Lifespan (years):
5
 Energy Consumed per Book (kWh):
8
 Carbon Footprint of a Book (kg CO2e):
2.5
 Carbon Footprint of an Ereader (kg CO2e):
25
 Paper Used per Book (pages):
300
Calculation Steps:
1. Physical Books Carbon Footprint:
2. Ereader Carbon Footprint:
$$\left(\frac{25}{5}\right)+(8\times 20)=5+160=165\text{kgCO2e}$$
3. Annual Paper Usage:
I hope you Found the Books vs eBooks Calculator helpful. How was your experience using the tool? If you encountered any issues, please report them on our Report an Error page.