Useful Conversion Data
LENGTH
| millimetre mm | metre m | inch in | foot ft | yard yd |
| 1100025.4
304.8 914.4 |
0.00110.0254
0.3048 0.9144 |
0.039439.37011
12 36 |
0.00333.28080.0833
1 3 |
0.00111.09360.0278
0.3333 1 |
VOLUME
| cubic metre m3 | cubic centimetre cm3 | litrel | cubic inchin3 | cubic footft3 | UK gallonUK gal | US gallon US gal |
| 10.000 0010.001
0.000 016 0.028 3 0.004 5 0.003 8 |
1 000 00011 000.028
16.3871 28 316.8 4 546.09 3 785.41 |
999.9720.000 999 71
0.016 4 28.316 1 4.546 3.785 3 |
61 023.70.061061.0255
1 1 728 277.419 231 |
35.314 70.000 035 30.035 3
0.000 58 1 0.160 5 0.133 7 |
219.9690.000 220.22
0.003 6 6.228 8 1 0.832 7 |
264.1720.000 260.264.2
0.004 3 7.480 5 1.201 1 |
VELOCITY
| metre per second m/s | foot per second ft/s | foot per minute ft/m | kilometre per hour km/h | mile per hour mile/h |
| 10.304818.288
0.2778 0.4470 |
3.2808160
0.9113 1.4667 |
0.05470.01671
0.0152 0.0245 |
3.61.097365.8368
1 1.6093 |
2.23690.681840.9091
0.6214 1 |
MASS
| kilogram Kg | pound lb | hundredweight cwt | ton net | UK ton | US short ton sh ton |
| 10.453650.8023
1000 1016.05 907.185 |
2.20461112
2204.62 2240 2000 |
0.01970.00891
19.6841 20 17.8571 |
0.0010.000 4540.050 8
1 1.016 1 0.907 2 |
0.000 980.000 4460.05
0.984 2 1 0.892 9 |
0.00110.00050.056
1.1023 1.12 1 |
MASS RATE OF FLOW
| kilogram per second kg/s | kilogram per hour kg/h | pound per hour lb/h | ton per hourUK ton/hr | tonne per day t/d |
| 10.000 2780.000 126
0.282 2 0.011 6 |
360010.4536
1016.05 41.6667 |
7936.642.20461
2240 91.8592 |
3.543 140.000 9840.000 446
1 0.041 01 |
86.40.024.0109
24.3852 1 |
VOLUMETRIC RATE OF FLOW
| litreper secondl/s | litre per minute l/min | cubic metre per hour m3/h | cubic foot per hour ft3/h | cubic foot per minute ft3/m | UK gallon per minute UK gal/min | US gallon per minute US gal/min | US barrel per dayUS barrel/d |
| 10.01670.2778
0.0079 0.4719 0.0758 0.0631 0.0018 |
60116.6666
0.4719 28.316 4.546 3.7853 0.1104 |
3.60010.06001
0.0283 1.6990 0.2728 0.2271 0.0066 |
127.1362.118935.3147
1 60 9.6326 8.0208 0.2339 |
2.11890.35320.5886
0.1067 1 0.1605 0.1337 0.0039 |
13.19860.223.6662
0.1038 6.2288 1 0.8327 0.0243 |
15.85080.26424.4029
0.1247 7.4805 1.201 1 0.0292 |
543.4569.0576150.956
4.2746 256.475 41.1754 34.2857 1 |
STANDARD GAS CONDITIONS AND MOLAR VOLUMES
NORMAL (eg nft3) – European and scientific work = 0°C and 1.0133 barMolar Volume 22.412m3/kgmol
STANDARD (eg std ft3) – British Gas Industry = 15.55°C and 1.016 barMolar Volume 24.112m3/kgmol
STANDARD (scf) – USA = 15.55°C and 1.0133 barMolar Volume 23.681m3/kgmol
PRESSURE AND LIQUID HEAD
|
bar *1 |
kilogram force per square centimetre kgf/cm2 *2 | pound force per square inchlbf/in2 *3 |
atm *4 |
foot of water
ft H2O *5 |
inch of water
in H2O |
metre of water
m H2O |
centimetre of mercury
cm Hg |
inch of mercury
in Hg |
millimetre of mercury
mm Hg *6 |
| 10.98070.0689
1.0133 0.0299 0.0025 0.0981 0.0133 0.0339 0.0013 |
1.019710.0703
1.0332 0.0305 0.0025 0.1000 0.0136 0.0345 0.0014 |
14.503814.22331
14.6959 0.4335 0.0361 1.422 0.1934 0.4911 0.0193 |
0.98690.98780.0609
1 0.0295 0.0025 0.0968 0.0132 0.0334 0.0013 |
33.455332.80842.3067
33.889 1 0.0833 3.2808 0.4461 1.133 0.446 |
401.463393.70127.68
406.782 12 1 39.3701 5.3524 13.5951 0.5352 |
10.1972100.7031
10.3323 0.3048 0.0254 1 0.136 0.3453 0.0136 |
75.006273.5565.1715
76.0 2.242 0.1868 7.3556 1 2.54 0.1 |
29.53028.9592.036
29.9213 0.8827 0.0734 2.896 0.3937 1 0.0394 |
750.062735.55951.715
760 22.4198 1.8683 73.356 10 25.4 1 |
*1 1 bar = 105N/m2
*2 Technical (metric) atmosphere (at)
*3 Often denoted non-technically as psi
*4 International standard atmosphere
*5 At density 1g/cm3*6 Also known as torr
PRESSURE STANDARDS
International standard atmosphere (1 atm)= 1.0332 bar= 1.0032 kgf/cm2= 14.6959 lbf/in2
Metric atmosphere (1 at)= 0.9807 bar= 1 kgf/cm2= 14.2233 lbf/in2
ata= at absolute
atu= at gauge
STANDARD CONDITIONS – stp or NTP= 1.0133 bar at 0°C = 14.6959 lbf/in2 at 0°C
DENSITY
| gram per millilitreg/ml | kilogram per cubic metrekg/m3 | pound per cubic footlb/ft3 | pound per cubic inchlb/in3 |
| 10.0010.016
27.6807 |
1 000116.02
27 679.9 |
62.4280.06241
1728 |
0.036 10.000 0360.000 58
1 |
HEAT FLOW RATE
| wattsW | calorie per secondcal/s | kilocalorie per hourkcal/h | British Thermal unit per hourBtu/h |
| 14.18681.163
0.2931 |
0.238810.2778
0.07 |
0.85983.61
0.252 |
3.412114.2863.9683
1 |
POWER
| wattW | kilogram force metre per secondkgf m/s | metric horse power | foot pound force per secondft lbf/s | horse powerhp |
| 19.8067735.499
1.3558 745.70 |
0.102175
0.1383 76.0402 |
0.001 360.013 331
0.001 84 0.013 9 |
0.73767.2330542.476
1 550.0 |
0.001 340.013 150.986 32
0.001 82 1 |