* There are 1,000,000,000 nanograms in 1 gram. (1 g = 1,000,000,000 ng)

To convert 150 nanograms to grams:

1. Divide 150 ng by 1,000,000,000 ng/g:

150 ng / 1,000,000,000 ng/g = 0.00000015 g

Therefore, there are 0.00000015 grams in 150 nanograms.