Curie to Rutherford Conversion

Convert between Curie and Rutherford quickly and accurately.

Ci
Rd

How to Convert Curie to Rutherford

Conversion Formula

1 Ci = 37000 Rd
1 Rd = 0 Ci

Example

Convert 15 Ci to Rd:

15 Ci = 15 × 37000 Rd = 555000 Rd

Unit Information

Learn about the radiation activity units you're converting between

Curie

Ci

Definition

A unit of radioactivity equal to 3.7 × 10^10 becquerel, originally defined as the activity of 1 gram of radium-226.

History/Origin

Named after Marie Curie (1867-1934) and Pierre Curie (1859-1906), pioneers in the study of radioactivity.

Current Use

Still widely used in the United States, particularly in nuclear medicine and radiation therapy.

Multiplier

37000000000

Offset

0

Rutherford

Rd

Definition

A unit of radioactivity equal to 10^6 becquerel or 1 megabecquerel, named after Ernest Rutherford.

History/Origin

Named after Ernest Rutherford (1871-1937), the New Zealand physicist who made fundamental contributions to atomic physics.

Current Use

Historically used in nuclear physics, now largely replaced by the becquerel in most applications.

Multiplier

1000000

Offset

0

Curie to Rutherford Conversion Table

Curie [Ci] Rutherford [Rd]
1 Ci 37000 Rd
10 Ci 370000 Rd
25 Ci 925000 Rd
50 Ci 1850000 Rd
100 Ci 3700000 Rd
0 Ci 0E+0 Rd
-10 Ci -370000 Rd
-40 Ci -1480000 Rd