254 surface Drilling

MARkeT MATeRiAl

This unit Times Equals

Lengthmm (millimetre)....................... x 0.001 (10-3)............= mcm (centimetre)........................ x 0.01.......................= mdm (decimetre)......................... x 0.1.........................= mkm (kilometre).......................... x 1 000 (103)............= min (inch)..................................... x 25.4.......................= mmft (feet)...................................... x 0.305.....................= myd (yard)................................... x 0.914.....................= mmile........................................... x 1609......................= m

PowerJ/s (joule/second) ..................... x 1 ............................= WNm/s (newton metre/second) .. x 1 ............................= WkW (kilowatts)........................... x 1 000....................= Whk (metric horse power).......... x 735.5.....................= Whp (horsepower UK, US)......... x 745.7.....................= Wft.lbf/s........................................ x 1.36.......................= WBtu/h.......................................... x 0.29.......................= W

Volumel (litre)........................................ x 0.001.....................= m3

ml (millilitre)............................. x 0.001.....................= ldm3 (cubic decimetre)............. x 1.0.........................= lcm3 (cubic decimetre).............. x 1.0.........................= mlmm3 (cubic millimetre) ........... x 0.001.....................= mlin3 (cubic inch).......................... x 16.39.....................= mlft3 (cubic feet)........................... x 28.316...................= lImperial gallon......................... x 4.546.....................= lUS gallon.................................. x 3.785.....................= lOunce (Imp. fluid oz)............... x 28.41.....................= mlOunce (US fluid oz).................. x 29.57.....................= mlPint (US liquid)......................... x 0.4732...................= lQuart (US liquid)...................... x 0.9463...................= lyd3 (cubic yard)........................ x 0.7646...................= m3

ForcekN (kilonewton)........................ x 1 000....................= Nkp (kilopond)............................ x 9.81.......................= Nkgf (kilogramme force)............ x 9.81.......................= NIbf (pound force)...................... x 4.45.......................= N

Torque (moment of force)kpm (kilopondmetre)............... x 9.81.......................= NmIbf in (poundforce inch) ..........x 0.11.......................= NmIbf ft (poundforce foot)............x 1.36.......................= Nm

Equals Divided This by unit

This unit Times Equals

Mass (commonly but incorrectly called weight)g (gramme)............................... x 0.001...................= kgt (tonnes, metric)...................... x 1 000..................= kggrain.......................................... x 0.0648.................= goz (ounce)................................. x 28.35...................= gozt (troy ounce)........................ x 31.10...................= glb (pound)................................. x 0.4536.................= kgton (long, US)........................... x 1 016...................= kgton (UK).................................... x 1 016...................= kgton (short)................................. x 907......................= kg

Speed (velocity)km/h (kilometre/hour).............. x 0.2777.................= m/sm/s (metre/sec)........................ x 3.6.......................= km/hmile/h........................................ x 0.45.....................= m/smile/h........................................ x 1.61.....................= km/hft/s (foot/second)...................... x 18.29...................= m/minft/min (foot/minute)................. x 0.3048.................= m/min

Frequencyblow/min................................... x 0.017...................= HzkHz (kiloHertz).......................... x 1 000..................= Hzrev/min...................................... x 0.01667...............= r/sdegree/second.......................... x 0.1667.................= r/min

Pressurebar............................................. x 100......................= kPabar............................................. x 100 000 (105)......= Pakp/cm2....................................... x 0.98.....................= baratm (atmosphere).................... x 1.01.....................= barpsi (pounds/in2)........................ x 6.895...................= kPapsi.............................................. x 0.06895...............= bar

Areamm2 (square mm).................... x 0.000001 (10-6)...= m2

cm2 (square cm)....................... x 0.0001 (10-4).......= m2

in2 (square inches)................... x 645......................= mm2

ft2 (square feet)......................... x 0.0929.................= m2

yd2 (square yard)...................... x 0.8361.................= m2

Acre .......................................... x 4 047...................= m2

Square mile.............................. x 2.590...................= km2

ha (hectare).............................. x 10 000................= m2

Equals Divided This by unit

Conversion table