Kilogram

\[\begin{aligned} y[tonne] &= 0.001x[Kilogram] \\ y[gram] &= 1000x \\ y[miligram] &= 1 \times 10^{6}x \\ y[microgram] &= 1 \times 10^{9}x \\ y[Imperial\ ton] &= 0.000984207x \\ y[US\ ton] &= 0.00110231x \\ y[pound] &= 2.20462x \\ y[ounce] &= 35.274x \end{aligned}\]