___________________________



25.4                          .039 37

2.54                          .393 7

.304 8                       3.280 83

.914 4                       1.093 6

1.828 8                     .546 807

6

1.609 3                     .621 3

1.000 64                   .999 36

1.852                        .539 957

1.151 5                     .868 4









___________________________



645.16                      .001 550

6.451 6                     .155

.092 9                       10.764 2

.836 127                   1.195 99

404 7                        .000 247

.404 7                       2.470 9   





___________________________



28.35                        .0352

.453 6                       2.204 5

101 6                        .000 98

1.016                        .984 207

50.802 3                   508 02.304

___________________________



.568 261                   1.759 75

4.546                        .219 9

1.2                            .833

___________________________



16 387.1                   .000 061 023 7

16.387                      .061

.028 3                       35.3144

6.25                          .16

28.33                        .035

.764 555                   1.307 95

.004 546 09              219.969

3.785 4                     .2641

29.574                      .033 8

1.132 7                     ?

.000 568 261            ?

1000                         .001

1 728                        ?

40                             ?




___________________________



6.895                        .145

6.894 76                   .145 038

.0703                        14.22

.0680                        14.7

3.386 39                   .295 300

33.86                        .0295

100                           .01






___________________________

 

.238 9                       4.185 8

3.6                            .277 778

1.355 82                   .737 562

.042 140 1                23.7304

105.506                    .009 478 13

1.055 06                   .947 813

___________________________



16.018 5                   .062 428

27.679 9                   .036 127

1.328 94                   .752 479

___________________________

  

9.964 02                   .100 361

4.448 22                   .224 809

.138 255                   7.233 01

.138                          ?

___________________________

  

25.4                          .039 370 1

5.08                          .196 85

.005 1                       196.8

.304 8                       3.280 84

.682                          1.467

.447 040                   2.236 94

1.609 34                   .621 371

1.151 5                      .868

1.852                        .540

.5144 4                        ?

1.000 64                   .999 36

___________________________



.028 316 8                35.314 7

.004 546 09              219.969

4.546 09                   .219 969

.272 765                   3.666 16

.075 768 2                13.198 1

___________________________



745.7                        .001 341 02

1.355 82                   .737 561

___________________________



(°F-32) / 1.8             (°C x 1.8) + 32

___________________________





____________________________

   length

inch - mm   

in - cm    
                           
ft - m

yard - m 

fathom - m 

fathom - ft

mile - km  

naut. mile Brit - n mile Int

naut. M - km

naut. M - statute M  

-------------------------------------------
1 mile = 5280 ft
1 naut M = 6,076 ft
3 naut M = 1 League
1 cable = 1/10 M = 185.2 m
60 M = 1 degree
Earth's circumference = 24,856 M

____________________________

   area

in2 - mm2

in2 - cm2  

ft2 - m2   

yd2 - m2  

acre - m2   

acre - hectare  
                 
-------------------------------------------          
1 hectare = 10,000 m2
1 acre = 70 x 70 yards approx.

____________________________

  
mass

ounce - gramme  

lb - kg  

imp ton - kg  

ton - tonne  

cwt - kg  

____________________________

   capacity

pint - litre  

gal - litre  

gal - US gal  

____________________________

  
volume

in3 - mm3

in3 - cm3  

ft3 - m3                 

ft3 - gal  

ft3 - litre  

yd3 - m3  

gal - m3  

US gal - litre 

US fl oz - ml  

freight ton - m3  

pint - m3   

m3 - litre

ft3 - in3

freight ton - ft3    

-------------------------------------------
1 pint = 34.6 in3 approx.
1 cu ft of seawater weighs 64 lbs
____________________________

   pressure

lb/in2 - kpa  

lb/in2 - kN/m2    

lb/in2 - kg/cm2  

lb/in2 - atmosphere 

" Hg (inch mercury) - kN/m2          

inch mercury - mb  

mb - N/m2

-------------------------------------------
1 standard atmosphere =
101,325 N/m2, or 1,013.25 mb, or
760 mm mercury

____________________________

   energy

kj - kc   .

kWh - MJ  

ftlbf - J 

ftpdl - J  

therm - MJ 

Btu - kJ  

____________________________

   density

lb/ft3 - kg3  

lb/in3 - g/cm3  

ton/yd3 - t/m3  

____________________________

  
force

tonf - kN  

lbf - N  

poundal - N 

ft/lbs - kg/m    

____________________________

  
velocity

in/sec - mm/sec 

ft/min - mm/sec 

ft/min - m/sec 

ft/sec - m/sec   

ft/sec - mph  

mph - m/sec 

mph - kph  

knot - mph 

knot - kph  

knot - m/sec

knot (Brit.) - kn (Inter.)

____________________________

   volume flow rate


ft3 - m3  

gal/hr - m3/hr  

gal/hr - l/hr  

gal/min - m3/hr  

gal/min - l/sec  

____________________________

   power

hp - Watts  

ftlbf/s - W  

____________________________

   temperature

°F - °C 

____________________________

  
maths

Pi = 3.14 (or 3.14159265358979)




                    NOTES

These values are Imperial, i.e. UK measures, and therefore the volume measures are different to US values.

Please let me know if there are any errors in these conversion formulae; if I have made any typos in the factors; if you can fill in any missing factors; or if you can add any useful conversions (yes, yes, I've got megabecquerels to microjoules etc., I mean something of value in the marine environment).

                                                   
                      
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