$1{\mkern 1mu} {\mkern 1mu}  = {\mkern 1mu} {\mkern 1mu} \frac{{2.54{\mkern 1mu} cm}}{{1{\mkern 1mu} {\mkern 1mu} inch}}{\mkern 1mu} {\mkern 1mu}  = {\mkern 1mu} {\mkern 1mu} \frac{{1{\mkern 1mu} {\mkern 1mu} inch}}{{2.54{\mkern 1mu} cm}}{\mkern 1mu} {\mkern 1mu} {\text{ }}\frac{{{\text{2}}.{\text{7}}{\mkern 1mu} {\text{g}}}}{{{\text{1}}\,{\text{c}}{\mkern 1mu} {{\text{m}}^{\text{3}}}}}{\mkern 1mu} {\mkern 1mu}  = {\mkern 1mu} {\mkern 1mu} \frac{{1{\mkern 1mu} c{m^3}}}{{2.7{\mkern 1mu} g}}$

અહીં, જરૂરી દળ (ગ્રામમાં)

$3.0$ ઇંચ $\times $ $4.0$ ઇંચ $\times $ $5.0$ ઇંચ $\times $ $ \times \frac{{2.54\,cm}}{{1\,inch}} \times \frac{{2.54\,cm}}{{1\,\,inch}} \times \frac{{2.54\,cm}}{{1\,\,inch}} \times \frac{{27\,g}}{{1\,c{m^3}}}\,\,\,\, = \,2.65 \times {10^4}$ ગ્રામ