Info of the metric with British equivalents

Linear Measure

1 millimeter (mm) = 0.039 inch
1 centimeter (cm) = 10 mm = 0.394 inch
1 decimeter (dm) = 10 cm = 3.94 inches
1 meter (m) = 100 cm = 1.094 yards
1 kilometer (km) = 1,000 m = 0.6214 mile

Weight

1 milligram (mg) = 0.015 grain
1 centigram (cg) = 10 mg = 0.154 grain
1 decigram (dg) = 100 mg = 1.5443 grains
1 gram (g) = 1,000 mg = 15.43 grains
1 decagram (dg) = 10 g = 5.64 drams
1 hectogram (hg) = 100 g = 3.527 ounces
1 kilogram (kg) = 1,000 g = 2.205 pounds
1 tonne (metric ton) = 1,000 kg = 0.984 (long) ton