6.3x10*-11kg to mg
2.84x10*6 us to s
6.93x 10*-2 mWto daW
3.8km to hm
0.49hm to g
4daW to dW
57mL to dL
305m to hm
125 cg to dag
9.4x10*4Mm to m
8.5x10*12fg to g
7.1x10*-11Gm to mm
2.9x10*-7 Ps to Ms
6.5x10*-12 um to mm
* meaning exponents.