List of BIGGEST Nuclear Warhead of all time - The most powerful nuclear weapons ever built

Tsar Bomba (RDS-220 hydrogen bomb) - 50Mt

It was exploded by the Soviet Union on 30 October 1961 over Novaya Zemlya Island in the Russian Arctic Sea.

B41 nuclear bomb - 25Mt

The prototypes were test fired during Operation Hardtack Phase I in 1958.

TX-21 "Shrimp" (Castle Bravo) - 14.8Mt

The TX-21 "Shrimp" thermonuclear weapon was exploded by the US on 1 March 1954 during its biggest ever nuclear weapon test, Castle Bravo, at Bikini Atoll in the Marshall Islands

Mk-17/EC-17 - 10Mt to 15Mt

It was also the first operational hydrogen bomb of the US Air Force.

Ivy Mike H-Bomb - 10.4Mt

This bomb was dropped on Hiroshima.

Mk-36 nuclear bomb - 10Mt

The Mk-36 was designed to be airdropped using two parachutes.

B53 (Mk-53) - 9Mt

The B53/Mk-53 was the oldest and one of the highest yield nuclear bombs in the US inventory.

Mk-16 (TX-16/EC-16) nuclear bomb - 7Mt

The Mk-16 hydrogen bomb was the only liquid fuel thermonuclear weapon ever built by the US. It was built in Experimental/Emergency Capability

Mk-14 / TX-14 - 6.9Mt

The Mk-14, which was the first fielded solid-fuel thermonuclear weapon of the US, yielded 6.9Mt when it was exploded during the Castle Union nuclear test in April 1954. The bomb used a non radioactive isotope of lithium (Li-6) instead of tritium.