Converter group

Radiology Converters

Radiation - Activity Converter

Value

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Result

... Kilocurie = ... Curie

Result

... Kilocurie

... Curie

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Use this page to convert kilocurie values into curie, with background details, formulas, a worked example, and a quick conversion table.

1 kCi = 1,000 Ci

1 Ci = 0.001 kCi

Example: 1000 kCi = 1,000,000 Ci

One kilocurie is equal to 1,000 curies or 3.7E+13 becquerels.

History: Standard prefix applied to the curie.

Current use: Used for high-activity industrial irradiators.

Also written as kCi.

One curie is approximately the activity of 1 gram of the radium isotope 226Ra, equal to 3.7E+10 becquerels.

History: Named after Pierre and Marie Curie. Originally defined in 1910.

Current use: Still commonly used in the United States and in some clinical settings alongside the becquerel.

Also written as Ci, curies.