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Note:  All weights and measures of water are based on a temperature of 60ºF.

Note:  Temperature of Water and Mercury is 68ºF and 32ºF respectively.

Liquid Weights and Measures

To Convert

To

Multiply by
Gallons Liters 3.7853
Gallons Cu. Inches 231
Gallons Cu. Feet 0.1337
Gallons Cu. Meters 0.00379
Gallons Lbs. of Water 8.339
Liters Gallons 0.26418
Liters Cu. Inches 61.025
Liters Cu. Feet 0.0353
Liters Cu. Meters 0.001
Liters Lbs. of Water 2.202
Cu. Inches Gallons 0.00433
Cu. Inches Liters 0.01639
Cu. Inches Cu. Feet 0.00058
Cu. Inches Cu. Meters 0.000016
Cu. Inches Lbs. of Water 0.0362
Cu. Feet Gallons 7.48052
Cu. Feet Liters 28.316
Cu. Feet Cu. Inches 1728
Cu. Feet Cu. Meters 0.0283
Cu. Feet Lbs. of Water 62.371
Cu. Meters Gallons 264.17
Cu. Meters Liters 999.972
Cu. Meters Cu. Inches 61023.74
Cu. Meters Cu. Feet 35.3145
Cu. Meters Lbs. of Water 2202.61
Lbs. of Water Gallons 0.11992
Lbs. of Water Liters 0.45419
Lbs. of Water Cu. Inches 27.643
Lbs. of Water Cu Feet 0.01603
Lbs. of Water Cu. Meters 0.000454

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Lineal Measures

To Convert To Multiply by
Inches mm 25.4
Inches cm 2.54
Inches Meters 0.0254
Feet cm 30.48
Feet Meters 0.3048
mm Inches 0.03937
mm Feet 0.00328
cm Inches 0.3937
cm Feet 0.03281
Meters Feet 3.28

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Area
To Convert To Multiply by
Sq. Inches Sq. Feet 0.006944
Sq. Inches Sq. cm 6.4516
Sq. Feet Sq. Inches 144
Sq. Feet Sq. cm 929.03
Sq. Feet Sq. Meters 0.0929
Sq. cm Sq. Inches 0.155
Sq. cm Sq. Feet 0.00108
Sq. cm Sq. Meters 0.0001
Sq. Meter Sq. Inches 1550
Sq. Meter Sq. Feet 10.76

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Conversions to Pressure and Head

To Convert To Multiply by
Lbs. per Sq. Inch Lbs. per Sq. Foot 144
Lbs. per Sq. Inch Atmospheres 0.06805
Lbs. per Sq. Inch Inches of Water 27.728
Lbs. per Sq. Inch Feet of Water 2.3106
Lbs. per Sq. Inch Inches of Mercury 2.03602
Lbs. per Sq. Inch mm of Mercury 51.715
Lbs. per Sq. Inch Bar 0.06895
Lbs. per Sq. Inch kg per Sq. cm 0.070307
Lbs. per Sq. Inch kg per Sq. M 703.070
Lbs. per Sq. Foot Lbs. per Sq. Inch 0.0069445
Lbs. per Sq. Foot Atmospheres 0.000473
Lbs. per Sq. Foot Inches of Water 0.1926
Lbs. per Sq. Foot Feet of Water 0.01605
Lbs. per Sq. Foot Inches of Mercury 0.014139
Lbs. per Sq. Foot mm of Mercury 0.35913
Lbs. per Sq. Foot Bar 0.000479
Lbs. per Sq. Foot kg per Sq. cm 0.000488
Lbs. per Sq. Foot kg per Sq. M 4.88241
Atmospheres Lbs. per Sq. Inch 14.696
Atmospheres Lbs. per Sq. Foot 2116.22
Atmospheres Inches of Water 407.484
Atmospheres Feet of Water 33.957
Atmospheres Inches of Mercury 29.921
Atmospheres mm of Mercury 760
Atmospheres Bar 1.01325
Atmospheres kg per Sq. cm 1.0332
Atmospheres kg per Sq. M 10332.27
Inches of Water Lbs. per Sq. Inch 0.03609
Inches of Water Lbs. per Sq. Foot 5.1972
Inches of Water Atmospheres 0.002454
Inches of Water Feet of Water 0.08333
Inches of Water Inches of Mercury 0.07343
Inches of Water mm of Mercury 1.8651
Inches of Water Bar 0.00249
Inches of Water kg per Sq. cm 0.00253
Inches of Water kg per Sq. M 25.375
Feet of Water Lbs. per Sq. Inch 0.432781
Feet of Water Lbs. per Sq. Foot 63.3205
Feet of Water Atmospheres 0.029449
Feet of Water Inches of Water 12
Feet of Water Inches of Mercury 0.88115
Feet of Water mm of Mercury 22.3813
Feet of Water Bar 0.029839
Feet of Water kg per Sq. cm 0.03043
Feet of Water kg per Sq. M 304.275
Inches of Mercury Lbs. per Sq. Inch 0.491154
Inches of Mercury Lbs. per Sq. Foot 70.7262
Inches of Mercury Atmospheres 0.033421
Inches of Mercury Inches of Water 13.6185
Inches of Mercury Feet of Water 1.1349
Inches of Mercury mm of Mercury 25.40005
Inches of Mercury Bar 0.033864
Inches of Mercury kg per Sq. cm 0.03453
Inches of Mercury kg per Sq. M 345.316
mm of Mercury Lbs. per Sq. Inch 0.019337
mm of Mercury Lbs. per Sq. Foot 2.7845
mm of Mercury Atmospheres 0.001316
mm of Mercury Inches of Water 0.53616
mm of Mercury Feet of Water 0.04468
mm of Mercury Inches of Mercury 0.03937
mm of Mercury Bar 0.00133
mm of Mercury kg per Sq. cm 0.00136
mm of Mercury kg per Sq. M 13.59509
kg. per Sq. cm Lbs. per Sq. Inch 14.2233
kg. per Sq. cm Lbs. per Sq. Foot 2048.155
kg. per Sq. cm Atmospheres 0.96784
kg. per Sq. cm Inches of Water 394.38
kg. per Sq. cm Feet of Water 32.865
kg. per Sq. cm Inches of Mercury 28.959
kg. per Sq. cm mm of Mercury 735.559
kg. per Sq. cm Bar 0.98067
kg. per Sq. cm kg per Sq. M 10000

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Temperature and Velocity
To Convert Fahrenheit to Celsius:  (ºF - 32) / 1.8
To Convert Celsius to Fahrenheit:  (1.8 x ºC) + 32
1 Foot per Second = 0.3048 Meters per second
1 Meter per second = 3.2808 Feet per second

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Saturated Steam Table
Press psig Temp. ºF Temp. ºC
0 212 100
1 215 102
3 219 104
5 227 108
8 235 113
10 239 115
15 250 121
20 259 126
25 267 130
30 274 134
35 281 138
40 287 142
45 292 145
50 298 148
55 303 150
60 307 153
65 312 155
70 316 158
75 320 160
80 324 162
Press psig Temp. ºF Temp. ºC
85 328 164
90 331 166
95 335 168
100 338 170
110 344 173
120 350 177
130 356 180
140 361 183
150 366 186
160 371 188
170 375 191
180 380 193
190 384 195
200 388 198
215 394 201
230 399 204
245 404 207
250 406 208
260 409 210
275 414 212
Press psig Temp. ºF Temp. ºC
290 419 215
300 422 217
320 428 220
340 433 223
360 438 226
380 443 229
400 448 231
420 453 234
440 457 236
460 462 239
480 466 241
500 470 243
520 474 246
540 478 248
560 482 250
580 485 252
600 489 254
620 492 256
640 496 258
660 499 259

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Pressure Units Cross Reference Chart

From\To

 Pa(Nm²) kPa MPa bar mbar mmH2O
Pa(Nm²)

1

 10^-3 10^-6 10^-6 10^-2 0.1020
kPa 10^3 1 10^-3 10^-2 10 102
MPa 10^6 10^3 1 10 10^4 1.020x10^5
bar 10^5 100 0.1 1 10^3 1.020x10^4
mbar 100 .01 10^4

10^3

 1 10.2
mmH2O 9.807 9.807x10^-3 9.807x10^-6 9.807x10^-5 9.807x10^-2 1
kg/cm² 9.807x10^4 98.07 0.0981 0.9807 980.7  10^4
atm 1.013x10^5 101.3 0.1013 1.013 1013 1.013x10^4
inHg 3.386x10^3 3.386 3.386x10^-3 0.0339 33.864 345.9
mmHg 133.3 0.1333 1.333x10^-4 1.333x10^-3 1.333 13.62
inH2O 249.1 0.2491 2.491x10^-4 2.491x10^-3 2.491 25.4
psi 6.895x10^3 6.895 6.895x10^-3 0.0689 68.948 704.3
From\To kg/cm² atm in Hg mm Hg in H2O psi
Pa(Nm²) 1.020x10^-5 9.869x10^-6 2.953x10^-4 7.501x10^-3 4.016x10^-3 1.451x10^-4
kPa 0.0102 9.869x10^-3 0.2953 7.501 4.016 0.14505
MPa 10.2 9.869 295.3 7501 4016 145.05
bar 1.020 0.9869 29.53 750.1 401.6 14.505
mbar 1.020x10^-3 9.869x10^-4 0.0295 0.7501 0.4016 0.0145
mmH2O

    10^4

 9.678x10^-5 2.891x10^-3 0.0734 0.0394 1.4224x10^-3
kg/cm² 1 0.9678 28.91 734.2 393.7 14.224
atm 1.033 1 29.922 760.1 406.7 14.68
in Hg 0.0346 0.0334 1 25.4 13.62 0.4912
mm Hg 1.362x10^-3 1.316x10^-3 0.0394 1 0.5362 0.0193
in H2O 2.54x10^-3 2.548x10^-3 0.0734 1.8650 1 0.0361
psi 0.0704 0.0680 2.036 51.71 27.73 1

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