How many nuclear weapons does Russia have in comparison to other countries?

As per the data released by the Arms Control Association, a US-based nonpartisan organisation, Russia has the highest number of nuclear weapons at 6,257, followed by the US which has 5,550 of them. They are followed by China (350), France (290), the UK (225), Pakistan (165), India (156), Israel (90) and North Korea (40-50). Notably, Ukraine has no nuclear weapons.