Convert Rutherfords to Megacuries
Convert Rutherfords (Rd) to Megacuries (MCi) instantly and accurately.
Conversion Formula
MCi = Rd × 2.702702703e-11
About Rutherfords
The rutherford (Rd) equals exactly 10⁶ Bq = 1 MBq. Proposed by Ernest Rutherford and adopted at the 1946 Montreal Conference on Radioactivity as a convenient unit for large sources. Superseded by the MBq in SI but still encountered in older nuclear physics and reactor engineering literature. 1 Rd = 10⁶ Bq.
About Megacuries
The megacurie (MCi) equals 3.7 × 10¹⁶ Bq. Total radioactive inventory of a large nuclear power reactor core at shutdown is ~2000-10000 MCi; US atmospheric nuclear weapons tests released ~12000 MCi of ¹³¹I globally; high-level nuclear waste repositories are characterised in MCi. 1 MCi = 3.7 × 10¹⁶ Bq.
Quick Reference Table
| Rutherfords (Rd) | Megacuries (MCi) |
|---|---|
| 1 Rd | 2.703 × 10-11 MCi |
| 2 Rd | 5.405 × 10-11 MCi |
| 5 Rd | 1.351 × 10-10 MCi |
| 10 Rd | 2.703 × 10-10 MCi |
| 25 Rd | 6.757 × 10-10 MCi |
| 50 Rd | 1.351 × 10-9 MCi |
| 100 Rd | 2.703 × 10-9 MCi |