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Linear Measures British
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1 statute mile (mi.) = 1, 760 yards 1 yard (yd) = 3 feet 1 foot (ft) = 12 inches 1 inch (in.) =1, 000 mils Metric: 1 kilometre (km) =1, 000 metres 1 metre (m) = 100 centimetres 1 centimetre (cm) =10 millimetres (mm)
Appendix В
Metric equivalents of British linear measures 1 mile = 1.609347 km 1 yard = 0.9144m = 91.44 cm = 914.4mm 1 foot = 0.3048 m = 30.48 cm = 304.8mm 1 inch = 0.0254 m = 2.54 cm = 25.4 mm Note: The decimal point placed after the unit and denoting tenths, hundreds etc. is in the Russian way of writing replaced by a comma.
British equivalents of metric linear measures lkm = 0.621370 mi. lm = 3.281 ft = 39.4 in. 1 cm = 0.033 ft = 0.394 in. lmm = 0.0394 in. Conversion Table. Conversion of inches expressed in decimal fractions into millimetres and vice versa
| IN. | MM | IN. | MM | IN. | MM | IN. | MM |
| 0.01 | 0.25 | 4.0 | 101.60 | 0.01 | 0.0004 | 4.0 | 0.1575 |
| 0.05 | 1.27 | 5.0 | 127.00 | 0.05 | 0.0020 | 5.0 | 0.1968 |
| 0.1 | 2.54 | 6.0 | 152.40 | 0.1 | 0.0039 | 6.0 | 0.2362 |
| 0.5 | 12.70 | 7.0 | 177.80 | 0.5 | 0.0197 | 7.0 | 0.2756 |
| 1.0 | 25.40 | 8.0 | 203.20 | 1.0 | 0.0394 | 8.0 | 0.3150 |
| 2.0 | 50.80 | 9.0 | 228.60 | 2.0 | 0.0787 | 9.0 | 0.3543 |
| 3.0 | 76.20 | 10.0 | 254.00 | 3.0 | 0.1181 | 10.0 | 0.3937 |
Example: 4.687 in. =? 4.0 in. = 101.6000 mm
SOLUTION 0.6 in. = 15.2400 mm
0.08 in. = 2.0320 mm 0.007 in. = 0.1778 mm 4.687in. = 1.19.0498mm
Conversion Table. Conversion of inches expressed in proper fractions into millimetres
| IN. | MM | IN. | MM | IN. | MM | IN. | MM |
| 25.4 | 1/32 | 0.794 | 1/64 | 0.397 | 33/64 | 13.097 | |
| 1/2 | 12.7 | 3/32 | 2.381 | 3/64 | 1.191 | 35/64 | 13.891 |
| 1/3 | 8.47 | 5/32 | 3.969 | 5/64 | 1.984 | 37/64 | 14.684 |
| 1/8 | 3.175 | 7/32 | 5.556 | 7/64 | 2.778 | 39/64 | 15, 478 |
| 3/8 | 9.525 | 9/32 | 7.144 | 9/64 | 3.572 | 41/64 | 16.272 |
| 5/8 | 15.875 | 11/32 | 8.731 | 11/64 | 4.366 | 43/64 | 17.066 |
| 7/8 | 22.225 | 13/32 | 10.319 | 13/64 | 5.159 | 45/64 | 17.857 |
| 1/16 | 1.588 | 15/32 | 11.906 | 15/64 | 5.953 | 47/64 | 18.653 |
| 3/16 | 4.762 | 17/32 | 13.494 | 17/64 | 6.747 | 49/64 | 19.447 |
| 5/16 | 7.938 | 19/32 | 15.081 | 19/64 | 7.541 | 51/64 | 20, 241 |
| 7/16 | 11.112 | 21/32 | 16.669 | 21/64 | 8.334 | 53/64 | 21.034 |
| 9/16 | 14.288 | 23/32 | 18.256 | 23/64 | 9.128 | 55/64 | 21.828 |
| 11/16 | 17.463 | 25/32 | 19.844 | 25/64 | 9.922 | 57/64 | 22.622 |
| 13/16 | 20.638 | 27/32 | 21.431 | 27/64 | 10.716 | 59/64 | 23.416 |
| 15/16 | 23.812 | 29/32 | 32.019 | 29/64 | 11.509 | 61/64 | 24.209 |
| 31/32 | 24.606 | 31/64 | 12.303 | 63/64 | 25.003 |
Example: 3 11/16 in. =? mm SOLUTION: 3 in. = 76.200 mm
11/16 in. = 17.463 mm 311/16 in. = 93.663 mm
Appendix В
Conversion Table. Conversion of feet into metres and vice versa
| FT | M | FT | M | M | FT | M | FT |
| 0.01 | 0.003 | 4.0 | 1.219 | 0.01 | 0.033 | 4.0 | 13.123 |
| 0.05 | 0.015 | 5.0 | 1.524 | 0.05 | 0.164 | 5.0 | 16.404 |
| 0.1 | 0.030 | 6.0 | 1.829 | 0.1 | 0.328 | 6.0 | 19.685 |
| 0.5 | 0.152 | 7.0 | 2.134 | 0.5 | 1.640 | 7.0 | 22.966 |
| 1.0 | 0.305 | 8.0 | 2.438 | 1.0 | 3.281 | 8.0 | 26.247 |
| 2.0 | 0.610 | 9.0 | 2.743 | 2.0 | 6.561 | 9.0 | 29.528 |
| 3.0 | 0.914 | 10.0 | 3.048 | 3.0 | 9.842 | 10.0 | 32.808 |
Square measures
British:
1 square mile (sq. mile) = 640 acres
1 acre =10 square chains
1 square chain =16 square rods
1 square rod (sq.rd) = 30.25 square yards
1 square yard = 9 square feet
1 square feet =144 square inches Metric:
1 square kilometre (km2) = 1, 000, 000 square metres (m2)
1 square metre = 10, 000 square centimetres (cm2)
I square centimetre =100 square millimetres (mm2) Metric equivalents of British square measures
1 sq. mile = 2.5899 km
1 acre = 4047.0 m2
lsq. yard = 0.836 m2
1 sq. foot = 0.0929 m2 = 929 cm2