# Metric conversion

When calculating measurements for geodesic domes your results are given with decimal points (divisible by 10), so it’s pretty easy to measure your struts with a metric ruler or a measuring tape

But if you are cutting struts in inches and your length ends with .687, how much is that? To find out, look up the decimal value and you’ll see the imperial value beside it. By the way .687 inches is 11/16th of an inch.

Fraction Decimal Fraction Decimal
1/64 .015625 33/64 .515625
1/32 .03125 17/32 .53125
3/64 .046875 35/64 .546875
1/16 .0625 9/16 .5625
5/64 .078125 37/64 .578125
3/32 .09375 19/32 .59375
7/64 .109375 39/64 .609375
1/8 .125 5/8 .625
9/64 .140625 41/64 .640625
5/32 .15625 21/32 .65625
11/64 .171875 43/64 .671875
3/16 .1875 11/16 .6875
13/64 .203125 45/64 .703125
7/32 .21875 23/32 .71875
15/64 .234375 47/64 .734375
1/4 .25 3/4 .75
17/64 .265625 49/64 .765625
9/32 .28125 25/32 .78125
19/64 .296875 51/64 .796875
5/16 .3125 13/16 .8125
21/64 .328125 53/64 .828125
11/32 .34375 27/32 .84375
23/64 .359375 55/64 .859375
3/8 .375 7/8 .875
25/64 .390625 57/64 .890625
13/32 .40625 29/32 .90625
27/64 .421875 59/64 .921875
7/16 .4375 15/16 .9375
29/64 .453125 61/64 .953125
15/32 .46875 31/32 .96875
31/64 .484375 63/64 .984375
1/2 .50 1 1.00

## Distance

Metric Imperial
1 millimetre [mm] 0.03937 in
1 centimetre [cm] 10 mm 0.3937 in
1 metre [m] 100 cm 1.0936 yd
1 kilometre [km] 1000 m 0.6214 mile
Imperial Metric
1 inch [in] 2.54 cm
1 foot [ft] 12 in 0.3048 m
1 yard [yd] 3 ft 0.9144 m
1 mile 1760 yd 1.6093 km
1 int nautical mile 2025.4 yd 1.853 km

## Area

Metric Imperial
1 sq cm [cm2] 100 mm2 0.1550 in2
1 sq m [m2] 10,000 cm2 1.1960 yd2
1 hectare [ha] 10,000 m2 2.4711 acres
1 sq km [km2] 100 ha 0.3861 mile2
Imperial Metric
1 sq inch [in2] 6.4516 cm2
1 sq foot [ft2] 144 in2 0.0929 m2
1 sq yd [yd2] 9 ft2 0.8361 m2
1 acre 4840 yd2 4046.9 m2
1 sq mile [mile2] 640 acres 2.59 km2

## Volume

Metric Imperial
1 cu cm [cm3] 0.0610 in3
1 cu decimetre [dm3] 1,000 cm3 0.0353 ft3
1 cu metre [m3] 1,000 dm3 1.3080 yd3
1 litre [l] 1 dm3 1.76 pt
1 hectolitre [hl] 100 l 21.997 gal
Imperial Metric
1 cu inch [in3] 16.387 cm3
1 cu foot [ft3] 1,728 in3 0.0283 m3
1 fluid ounce [fl oz] 28.413 ml
1 pint [pt] 20 fl oz 0.5683 l
1 gallon [gal] 8 pt 4.5461 l

## Mass (weight)

Metric Imperial
1 milligram [mg] 0.0154 grain
1 gram [g] 1,000 mg 0.0353 oz
1 kilogram [kg] 1,000 g 2.2046 lb
1 tonne [t] 1,000 kg 0.9842 ton
Imperial Metric
1 ounce [oz] 437.5 grain 28.35 g
1 pound [lb] 16 oz 0.4536 kg
1 stone 14 lb 6.3503 kg
1 long ton (uk) 20 cwt 1.016 t
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