From To T mT uT G
T 1 1000 1e+06 10000
mT 0.001 1 1000 10
uT 1e-06 0.001 1 0.01
G 0.0001 0.1 100 1

Each cell shows the factor to convert 1 unit of the row header into the column header.

Highlighted diagonal cells represent identity conversions (1:1).