Bitcoin CO2 Footprint Calculator

The following graph shows the development of Bitcoin mining total CO2 emissions in megatons per month. It is derived from electricity consumption data provided by the Cambridge Centre for Alternative Finance by multiplication with a factor taken from a paper by Stoll et al..


The second graph shows the total amount of CO2 emitted by Bitcoin miners obtained by summing up the above data. You can restrict the calculation to a time interval by clicking and dragging or entering the start and end months below.


Selected: 2015-11 to 2021-02

Total CO2 emitted in this time frame: 99.96 Mt.

Per BTC when divided by the total amount of bitcoin in existence at the time: 5.6 t.

Happy offsetting, and don't forget to tell us about it so we can keep count!

The horizontal line at 0.049 Mt signifies the amount of CO2 that has already been offset today. Calculated from the Genesis block at January 3, 2009, this means we've offset Bitcoin's history approximately until 2015-11-01.