(Reference: Section 2.1.5)

Imperial Units and Système International (SI) Units

From Curie to Becquerel From Becquerel to Curie
Kilocurie (kCi) ≈ 37 terabecquerel (TBq) 1 terabecquerel (TBq) ≈ 27 curie (Ci)
Curie (Ci) ≈ 37 gigabecquerel (GBq) 1 gigabecquerel (GBq) ≈ 27 millicurie (mCi)
Millicurie (mCi) ≈ 37 megabecquerel (MBq) 1 megabecquerel(MBq) ≈ 27 microcurie (m Ci)
Microcurie (mCi) ≈ 37 kilobecquerel (kBq) 1 kilobecquerel (kBq) ≈ 27 nanocurie (nCi)
Nanocurie (nCi) ≈ 37 becquerel (Bq) 1 becquerel (Bq) ≈ 27 picocurie (pCi)
Picocurie (pCi) ≈ 37 millibecquerel (m(Bq))  
From Rem to Sievert From Sievert to Rem
Kilorem (krem) = 10 sievert (Sv) 1 sievert (Sv) = 100 rem (rem)
Rem (rem) = 10 millisievert (mSv) 1 millisievert (mSv) = 100 millirem (mrem)
Millirem (mrem) = 10 microsievert (mSv) 1 microsievert (mSv) = 100 microrem (mrem)
Microrem (mrem) = 10 nanosievert (nSv) 1 nanosievert (nSv) = 100 nanorem (nrem)
Prefixes
Tera (T) = x 10 12 Pico (p) = x 10 – 12
Giga (G) = x 10 9 Nano (n) = x 10 – 9
Mega (M) = x 10 6 Micro (m) = x 10 – 6
Kilo (k) = x 10 3 Milli (m) = x 10 – 3