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Value conversion tables

Value conversion tables

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Tables of values for quick conversion from one unit to another.

Pressure unit ratio

bar mbar Pa kPa mPa kgf/mm2 kgf/cm2 phys.atm. mmHg m water column mm water column psi
1 bar 1 1000 100000 100 0,1 0,0101971 1,019716 0,986923 750,062 10,19716 10197,16 14,50377
1 mbar 0,001 1 100 0,1 0,001 0,0000101 0,001019 0,000986 0,750062 0,0101971 10,19716 0,0145037
1 Pa 0,00001 0,01 1 0,001 0,000001 0,0000001 0,000010 0,000009 0,007500 0,0010197 0,1019716 0,0001450
1 kPa 0,01 10 1000 1 0,001 0,0001019 0,010197 0,009869 7,50062 0,1019716 101,9716 0,1450377
1 MPa 10 10000 1000000 1000 1 0,1019716 10,19716 9,86923 7500,62 101,9716 101971,6 145,0377
1 kgf/mm² 98,0665 98066,5 9806650 9806,65 9,80665 1 100 96,7841 73555,9 1000 100000 1422,3344
1 kgf/cm² 0,98066 980,6 98066,5 98,0665 0,09806 0,01 1 0,967841 735,559 10 10000 14,223344
1 phys. atm. 1,01325 1013,2 101325 101,325 0,10132 0,010332 1,033227 1 760 10,33227 10332,27 14,6959
1 mmHg 0,00133 1,3332 133,322 0,13332 0,00013 0,000013 0,001359 0,001315 1 0,01360 13,60 0,019336
1 m of water column 0,09806 98,0665 9806,65 9,80665 0,00980 0,001 0,1 0,0967841 73,556 1 1000 1,4223274
1 mm of water column 0,00009 0,09806 9,80665 0,00980 0,000009 0,000001  0,0001 0,0000967 0,073556 0,001 1 0,0014223
1 psi 0,06894 68,9475 6894,75 6,89475 0,006894 0,0070307 0,070307 0,068046 51,71521 0,70307 703,07 1

Length unit ratio

Unit of
measurement		 Abbreviated
designation		 X-unit Angstrom Nanometer Micrometer Millimeter Centimeter Inch
X-unit Х 1 1.001·10-3 1.001·10-4 1.001·10-7 1.001·10-10 1.001·10-11 3.95·10-12
Angstrom Ǻ 0.998·103 1 39823 39913 40004 40035 3.937·10-9
Nanometer nm 0.998·104 10 1 39882 39974 40004 3.937·10-8
Micrometer (micron) microns 0.998·107 104 103 1 39882 39913 3.937·10-5
Millimeter mm 0.998·1010 107 106 103 1 39823 3.937·10-2
Centimeter cm 0.998·1011 108 107 104 10 1 0.3937
Inch Inch 0.254·1012 2.540·108 2.540·107 2.540·104 25.40 2.540 1
Foot foot 0.304·1013 3.048·109 3.048·108 3.048·105 3.048·102 30.48 12
meter m 0.998·1013 1010 10 106 103 102 39.37
Yard yard 0.913·1013 9.144·109 9.144·108 9.144·105 9.144·102 91.44 36
Kilometer km 0.998·1016 1013 1012 109 106 105 3.937·104
A land mile - 1.606·1016 1.609·1013 1.609·1012 1.609·109 1.609·106 1.609·105 6.336·104
A nautical mile - 1.849·1016 1.853·1013 1.853·1012 1.853·109 1.853·106 1.853·105 7.296·104
Light year - 9.441·1028 9.46 ·1025 9.46·1024 9.46·1021 9.46·1018 9.46·1017 3.724·1017

Temperature unit ratio

Comparison of temperature scales

Scale Designation Ice melting point Boiling point of water Interval
Celsius t, ºC 0 100 100
Absolute T, ºK 273.16 373.16 100
Rheaumur t, ºR 0 80 80
Fahrenheit t, ºF 32 212 180
Conversion formula: (T-273)ºK/5 = tºC/5 = tºR/4 = (t-32)ºF/9

Ratio of power units

Relationship between units of work and energy

Unit of
measurement		 Abbreviated
designation		 Erg Joule Kilogram-meter Watt-hour Calorie Liter-atmosphere Electron Volt
Erg erg 1 40004
1.02·10-8 2.778·10-11 2.388·10-8 9.869·10-10 6.242·1011
Joule J (w·s) 107 1 0.10197 2.778·10-4 0.23889 9.869·10-3 6.242·1018
Kilogram-meter kGm 9.807·107 2252331 1 2.724·10-3 557758 9.678·10-2 6.121·1019
Watt-hour wt· h 3.60·1010 3.60·103 3.671·102 1 8.60·102 35.527 2.25·1022
Calorie cl 4.187·107 4.1868 0.42685 1.163·10-3 1 4.131·10-2 2.613·1019
Liter- atmosphere l· atm 1.013·109 1.013·10-2 1.0333·10 2.815·10-2 24.206 1 6.325·1020
Electron Volt eV 1.61·10-12 1.602·10-19 1.634·10-20 4.450·10-23 3.828·10-20 1.581·10-21 1
Unit
of measurement 		Abbreviated
designation 		Erg per second Watt Kilogram- meter
per second 		Horsepower Horsepower
English 		Calories per
second
Erg per second erg/s 1 40004 1.0197·10-8 1.3596·10-10 1.3410·10-10 2.388·10-8
Watt Wt (J/s) 109 1 0.10197 1.3596·10-3 1.3410·10-8 2.388·10-1
A kilogram is a meter per
second 		kGm/s 9.8066·107 2252331 1 1.3333·10-2 1.3410·10-2 557758
Horsepower hp. 7.355·109 7.355·102 75 1 0.9863 175.67
Horsepower
English 		hp. 7.457·109 7.457·102 76 1.0139 1 178.11
Calories per second cl/s 4.1868·107 4.1868 0.42693 5.6924·10-3 5.6145·10-3 1

Mass unit ratio

Из kg ton foot UK cwt UK ton US cwt US ton
kg 1 0.001 2.20462 0.019684 0.000984 0.022046 0.001102
ton 1000 1 2204.62 19.6841 0.984207 22.0462 1.10231
foot 0.453592 0.000454 1 0.008929 0.000446 0.01 0.0005
Eng. cwt 50.8023 0.050802 112 1 0.05 01.dec 0.056
Eng. ton 1016.05 1.01605 2240 20 1 22.апр 01.дек
Amer. cwt 45.3592 0.045359 100 0.892857 0.044643 1 0.05
Amer. ton 907.185 0.907185 2000 17.8517 0.892857 20 1

Volume unit ratio

cм3 м3 liter
(in3) 		inch3 foot3 yard3 UK UK US US
sm3 1 - 0.001 0.061024 0.0000353 - 0.001760 0.00022 0.002113 0.000264
m3 - 1 1000 61023.7 35.3147 1.30795 1759.75 219.969 2113.38 264.172
liter (in3) 1000 0.001 1 61.0237 0.035315 0.001308 1.75975 0.219969 2.11338 0.264172
inch3 16.3871 - 0.016387 1 0.0005787 0.0000214 0.028837 0.003605 0.034632 0.004329
foot3 28316.8 0.028317 28.3168 1728 1 0.037037 49.8307 6.22883 59.8442 7.48052
yard3 764555 0.764555 764.555 46656 27 1 1345.429 168.1784 1615.793 201.974
UK 568.261 0.0005683 0.568261 34.6774 0.020068 0.000743 1 0.125 1.20095 0.150119
UK
gallion 		4546.09 0.0045461 4.54609 277.42 0.160544 0.005946 8 1 1525499 1.20095
US
pint 		473.176 0.0004732 0.473176 28.875 0.01671 0.000619 0.832674 0.104084 1 0.125
US
gallion 		3785.41 0.0037854 3.785411 231 0.133681 0.004951 6.661392 0.832674 8 1
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