# Why so many sources give different values for reciprocal conversions Curie and Becquerel?

1 Ci = 3.7 x 10^10 Bq or 37,000,000,000

1 Bq = 2.7 x 10^-11 Ci or 0.000000000027

1 Ci = 3.7 x 10^10 Bq or 37,000,000,000

1 Bq = 2.7 x 10^-11 Ci or 0.000000000027