Radioactivity
µCitonCi
Convert microcuries (µCi) to nanocuries (nCi).
Factor1 µCi = 1000 nCi
Converter
µCi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
nCi
Rendered to 6 significant figures.
Formula
Formula
nCi = µCi × 1000
Multiply any value in microcuries by 1000 to obtain the value in nanocuries.
Worked example
Convert 1 µCi to nCi.
- 01Start with 1 µCi.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 nCi.
Result1 µCi = 1000 nCi
Conversion table
| µCi | nCi |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from µCi to nCi?
1 µCi equals 1000 nCi. To convert, multiply the value in microcuries by 1000.
How do I convert 1 µCi to nCi?
1 µCi = 1000 nCi. For any value, multiply by 1000.
How do I convert nCi back to µCi?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 nCi = 0.001 µCi.
When would I need to convert microcurie to nanocurie?
Radioactivity (activity) conversions between µCi and nCi are routine in health physics, nuclear medicine ordering, environmental monitoring, radiopharmacy and reactor/accelerator-source documentation. The becquerel (Bq) is the SI unit; the curie (Ci) is the legacy unit (1 Ci ≡ 3.7×10¹⁰ Bq exactly). This category is strictly activity (decays per second) — it does NOT cover absorbed dose (Gy, rad), dose equivalent (Sv, rem), exposure or dose rate, all of which are different physical quantities and live in separate categories.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).