How many becquerels are in one curie?

One curie equals 37,000,000,000 Bq. The formula is Bq = Ci × 37,000,000,000.

How do I convert curies to becquerels?

Multiply the value in curies by 37,000,000,000. For example, 100 × 37,000,000,000 = 3,700,000,000,000 — so 100 Ci = 3,700,000,000,000 Bq.

Pair · linear · factor 37,000,000,000

curies to becquerels

CiBq

Active unit

curies · ≈ 3,700,000,000,000 Bq (base)

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Cicurie100

How we calculated this

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Frequently asked questions

An emerald outline of a human figure lit by flashes of nuclear decay, woven with a counter waveform, against a cosmic nebula in violet and magenta

Radioactivity

The becquerel — why your body fires thousands of decays every second

Hold a sensitive counter to a ripe banana and every few seconds you hear a click. Press it to your own chest and it breaks into a burst of crackles. Right now your body is firing thousands of invisible particles — with no disaster involved. Meet the becquerel: the unit that counts the pulse of the microworld, yet cannot tell you whether to be afraid.

12 min