Length    
1 centimeter (cm) 10 mm 0.3937 in
1 meter (m) 100 cm 1.0936 yrd
1 kilometer (km) 1000 m 0.6214 mile
     
1 inch (in)   2.54 cm
1 yard (yd) 36 in 0.9144 m
1 mile 1760 yd 1.6093 km

Surface or Area    
1 sq cm(cm2) 100 mm2 0.1550 in2
1 sq metre(m2) 10,000 cm2 1.1960yd2
1 sq km(km2) 100 ha 0.3861 mile2
     
1 sq in(in2)   6.4516 cm2
1 sq yard(yd2) 9 ft2 0.8361 m2
1 sq mile(mile2) 640 acres 2.59 km2

Volume Capacity    
1cu cm (cm3)   0.0610 in3
1 cu metre(m3) 1000 dm3 1.3080 yd3
1 litre(l) 1 dm3 0.2200 gal
1 hectolitre(hl) 100 l 21.997 gal
     
1 cu inch(in3)   16.387cm3
1 cu yard(yd3) 27 ft3 0.7646 m3
1 pint(pt) 20 fl oz 0.5683 L
1 gallon(gal) 8 pt 4.5461 L

Weight    
1 gram(g) 1000 mg 0.0353 oz
1 kilogram(kg) 1000 g 2.2046 lb
1 tonne(t) 1000 kg 0.9842 ton
     
1 ounce(oz) 437.5 grains 28.35 g
1 pound(ld) 16 oz 0.4536 kg
1 ton 20 cwt 1.016 t

Conversion Tables:

The central figure represent either of the two adjacent columns. Example:1 cm = 0.394 inch and 1 inch = 2.540 cm.

CM   Inches Meters   Yards Kms   Miles
2.540 1 0.394 0.914 1 1.094 1.609 1 0.621
5.080 2 0.787 1.829 2 2.187 3.219 2 1.243
7.620 3 1.181 2.743 3 3.281 4.828 3 1.864
10.160 4 1.575 3.658 4 4.374 6.437 4 2.485
12.700 5 1.969 4.572 5 5.468 8.047 5 3.107
15.240 6 2.362 5.486 6 6.561 9.656 6 3.728
17.780 7 2.756 6.401 7 7.655 11.266 7 4.350
20.320 8 3.15 7.315 8 8.748 12.875 8 4.971
22.860 9 3.543 8.230 9 9.842 14.485 9 5.593
25.400 10 3.937 9.144 10 10.935 16.094 10 6.214
27.940 11 4.331 - 11 - - 11 -
30.480 12 4.724 - 12 - - 12 -

Kgs   Pounds Litres   Gallons Hectares   Acres
0.113 1/4 0.551 - 1/4 - - 1/4 -
0.227 1/2 1.102 - 1/2 - - 1/2 -
0.454 1 1.181 4.546 1 0.220 0.405 1 2.471
0.907 2 1.575 9.092 2 0.440 0.809 2 4.942
1.361 3 6.614 13.638 3 0.660 1.214 3 7.413
1.814 4 8.818 18.184 4 0.880 1.619 4 9.884
2.268 5 11.023 22.730 5 1.100 2.024 5 12.355
2.721 6 13.228 27.276 6 1.320 2.428 6 14.826
3.175 7 15.432 31.822 7 1.540 2.833 7 17.297
3.629 8 17.637 36.368 8 1.760 3.238 8 19.768
4.082 9 19.842 40.914 9 1.980 3.642 9 22.239
4.536 10 22.046 45.460 10 2.200 4.047 10 24.711