Ci to mCi
1 Ci (Ci) equals 1,000 mCi (mCi). Type a value into either box below for an instant two-way conversion. For other units, use the full unit converter.
Chinese version: 居里转毫居里
Conversion factor
1 Ci = 1,000 mCi
Reverse: 1 mCi = 0.001 Ci
Ci to mCi converter
Ci（Ci）
mCi（mCi）
Ci to mCi conversion table
| Ci | mCi | Detail |
|---|---|---|
| 0.001 | 1 | 0.001 Ci to mCi |
| 0.01 | 10 | 0.01 Ci to mCi |
| 0.1 | 100 | 0.1 Ci to mCi |
| 1 | 1,000 | 1 Ci to mCi |
| 10 | 10,000 | 10 Ci to mCi |
| 100 | 100,000 | 100 Ci to mCi |
How to convert
To convert Ci to mCi, multiply: mCi = Ci × 1,000
To convert mCi to Ci, divide: Ci = mCi ÷ 1,000 (equivalently × 0.001).
Example: 1 Ci × 1,000 = 1,000 mCi. The factor is derived from the international definition of each unit; results are shown to 4 significant figures.
Frequently asked questions
1 Ci = 1,000 mCi. The formula is: value in Ci × 1,000 = value in mCi. Use the converter above to convert any value instantly.
1 mCi = 0.001 Ci. To convert back, divide the mCi value by 1,000 (or multiply by 0.001).
mCi = Ci × 1,000; conversely Ci = mCi ÷ 1,000. For example, 1 Ci × 1,000 = 1,000 mCi. The factor comes from the international definition of the units.
More conversions
Disclaimer: conversion factors are derived from international unit definitions and results are for reference only. For trade settlement, engineering or legal documents, follow the contract or official metrology standards.