This is a list of all the commercial nuclear reactors in the world, sorted by country, with operational status. The list only includes civilian nuclear power reactors used to generate electricity for a power grid. All commercial nuclear reactors use nuclear fission. As of July 2024, there are 415 operable power reactors in the world, with a combined electrical capacity of 373.7 GW. Additionally, there are 61 reactors under construction and 92 reactors planned, with a combined capacity of 68 GW and 90 GW, respectively, while 343 more reactors are proposed. For non-power reactors, see List of nuclear research reactors. For fuel plants see List of nuclear reprocessing plants. Where not otherwise specified, all information is sourced from the Power Reactor Information System (PRIS) of the International Atomic Energy Agency (IAEA). In the following tables, the capacity (expressed in megawatt, MW) refers to the net capacity, or the maximum electricity output under reference ambient conditions, after deducting the losses within the system including the energy transformers.

Argentina

Armenia

Austria

Bangladesh

Belarus

Belgium

Brazil

Bulgaria

Canada

China

Cuba

Czech Republic

Egypt

Finland

France

Germany

Hungary

India

Iran

Italy

Japan

Kazakhstan

Lithuania

Mexico

Netherlands

North Korea

Pakistan

Philippines

Poland

Romania

Russia

Slovakia

Slovenia

South Africa

South Korea

Spain

Sweden

Switzerland

Taiwan

Turkey

Ukraine

United Arab Emirates

United Kingdom

United States

Uzbekistan