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A Go to top of page
To Convert Into Multiply By
atmospheres Ton/sq inch 0.007348
atmospheres cms of mercury 76.0
atmospheres ft. of water (at 4C) 33.90
atmospheres in. of mercury (at 0C) 29.92
atmospheres kgs/sq cm 1.0333
atmospheres kgs/sq meter 10,332.
atmospheres pounds/sq in. 14.70
atmospheres tons/sq ft 1,058

B Go to top of page
To Convert Into Multiply By
bars atmospheres 0.9869
bars dynes/sq cm 1,000,000
bars kgs/sq meter 10,200
bars pounds/sq ft 2,089.
bars pounds/sq in. 14.50
Btu Liter-Atmosphere 10.409
Btu ergs 10,550,000,000
Btu foot-lbs 778.3
Btu gram-calories 252
Btu horsepower-hrs 0.0003931
Btu joules 1,054.8
Btu kilogram-calories 0.2520
Btu kilogram-meters 107.5
Btu kilowatt-hrs 0.0002928
Btu/hr foot-pounds/sec 0.2162
Btu/hr gram-cal/sec 0.0700
Btu/hr horsepower 0.0003929
Btu/hr watts 0.2931
Btu/min foot-pounds/sec 12.96
Btu/min horsepower 0.02356
Btu/min kilowatts 0.01757
Btu/min watts 17.57
Btu/sq ft/min watts/sq in. 0.1221
bushels liters 35.24

C Go to top of page
To Convert Into Multiply By
Calories, gram(mean) B.T.U. (mean) 0.00039685
centimeters feet 0.03281
centimeters inches 0.3937
centimeters kilometers 0.00001
centimeters meters 0.01
centimeters miles 0.000006214
centimeters millimeters 10
centimeters mills 393.7
centimeters yards 0.01094
centimeters-dynes cm-grams 0.0001020
centimeters-dynes meter-kgs 0.00000001020
centimeters-dynes pound-feet 0.00000007376
centimeters-grams cm-dynes 980.7
centimeters-grams meter-kgs 0.00001
centimeters-grams pound-feet 0.00007233
cubic centimeters cu feet 0.0003531
cubic centimeters cu inches 0.06102
cubic centimeters cu meters 0.000001
cubic centimeters cu yards 0.000001308
cubic centimeters gallons (U.S. liq.) 0.0002642
cubic centimeters liters 0.001
cubic centimeters pints (U.S. liq.) 0.002113
cubic centimeters quarts (U.S. liq.) 0.001057
cubic feet bushels (dry) 0.8036
cubic feet cu cms 28,320.0
cubic feet cu inches 1,728.0
cubic feet cu meters 0.02832
cubic feet cu yards 0.03704
cubic feet gallons (U.S. liq.) 7.48052
cubic feet liters 28.32
cubic feet pints (U.S. liq.) 59.84
cubic feet quarts (U.S. liq.) 29.92
cubic feet/min cu cms/sec 472.0
cubic feet/min gallons/sec 0.1247
cubic feet/min liters/sec 0.4720
cubic feet/min pounds of water/min 62.43
cubic feet/sec million gals/day 0.646317
cubic feet/sec gallons/min 448.831
cubic inches cu cms 16.39
cubic inches cu feet 0.0005787
cubic inches cu meters 0.00001639
cubic inches cu yards 0.00002143
cubic inches gallons (U.S. liq.) 0.004329
cubic inches liters 0.01639
cubic inches mil-feet 106,100
cubic inches pints (U.S. liq.) 0.03463
cubic inches quarts (U.S. liq.) 0.01732
cubic inches bushels (dry) 28.38
cubic meters cu cms 1,000,000
cubic meters cu feet 35.31
cubic meters cu inches 61,023
cubic meters cu yards 1.308
cubic meters gallons (U.S. liq.) 264.2
cubic meters liters 1,000
cubic meters pints (U.S. liq.) 2,113
cubic meters quarts (U.S. liq.) 1,057
cubic yards cu cms 764,600
cubic yards cu feet 27.0
cubic yards cu inches 46,656.0
cubic yards cu meters 0.7646
cubic yards gallons (U.S. liq.) 202.0
cubic yards liters 764.6
cubic yards pints (U.S. liq.) 1,615.9
cubic yards quarts (U.S. liq.) 807.9
cubic yards/min cubic ft/sec 0.45
cubic yards/min gallons/sec 3.367
cubic yards/min liters/sec 12.74

D Go to top of page
To Convert Into Multiply By
days seconds 86,400.0
drams grams 1.7718
drams grains 27.3437
drams ounces 0.0625
Dyne/sq cm Atmospheres 9.869 x 10-7
Dyne/sq cm Inch of Mercury at 0C 00C.00002953
Dyne/sq cm Inch of Water at 4C 0.0004015
dynes grams 0.001020
dynes joules/cm 0.0000001
dynes joules/meter (newtons) 0.00001
dynes kilograms 0.000001020
dynes poundals 0.00007233
dynes pounds 0.000002248

E Go to top of page
To Convert Into Multiply By
ergs Btu 9.480 x 10 E-11
ergs dyne-centimeters 1.0
ergs foot-pounds 0.000000007367
ergs gram-calories 0.00000002389
ergs gram-cms 0.001020
ergs horsepower-hrs 3.7250 x 10 E-14
ergs joules 0.0000001
ergs kg-calories 2.389 x 10 E-11
ergs kg-meters 0.00000001020
ergs kilowatt-hrs 0.2778 x 10 E-13
ergs watt-hours 0.2778 x 10 E-10

F Go to top of page
To Convert Into Multiply By
feet centimeters 30.48
feet kilometers 0.0003048
feet meters 0.3048
feet miles (naut.) 0.0001645
feet miles (stat.) 0.0001984
feet millimeters 304.8
feet mils 12,000
feet of water atmospheres 0.02950
feet of water in. of mercury 0.8826
feet of water kgs/sq cm 0.03048
feet of water kgs/sq meter 304.8
feet of water pounds/sq ft 62.43
feet of water pounds/sq in. 0.4335
feet/sec cms/sec 30.48
feet/sec kms/hr 1.097
feet/sec knots 0.5921
feet/sec meters/min 18.29
feet/sec miles/hr 0.6818
feet/sec miles/min 0.01136
foot-pounds Btu 0.001286
foot-pounds ergs 13,560,000
foot-pounds gram-calories 0.3238
foot-pounds hp-hrs .0000005050
foot-pounds joules 1.356
foot-pounds kg-calories 0.000324
foot-pounds kg-meters 0.1383
foot-pounds kilowatt-hrs 0.0000003766

G Go to top of page
To Convert Into Multiply By
gallons cu yards 0.004951
gallons liters 3.785
gallons (liq. Br. Imp.) gallons (U.S. liq.) 1.20095
gallons (U.S.) gallons (Imp.) 0.83267
gallons of water pounds of water 8.3453
gallons/min cu ft/sec 0.0002228
gallons/min liters/sec 0.06308
gallons/min cu ft/hr 8.0208
grams dynes 980.7
grams grains 15.43
grams joules/cm 0.00009807
grams joules/m (newtons) 0.009807
grams kilograms 0.001
grams milligrams 1,000.
grams ounces (avdp) 0.03527
grams ounces (troy) 0.03215
grams poundals 0.07093
grams pounds 0.002205
grams/cu cm pounds/cu ft 62.43
grams/cu cm pounds/cu in. 0.03613
grams/cu cm pounds/mil-foot 0.0000003405
grams/liter grains/gal 58.417
grams/liter pounds/1,000 gal 8.345
grams/liter pounds/cu ft 0.062427
grams/liter parts/million 1,000
gram-calories Btu 0.0039683
gram-calories ergs 41,868,000
gram-calories foot-pounds 3.0880
gram-calories horsepower-hrs 0.0000015596
gram-calories kilowatt-hrs 0.0000011630
gram-calories watt-hrs 0.0011630

H Go to top of page
To Convert Into Multiply By
horsepower foot-lbs/min 33,000
horsepower foot-lbs/sec 550
horsepower kg-calories/min 10/68
horsepower kilowatts 0.7457
horsepower watts 745.7
horsepower (boiler) Btu/hr 33.479
horsepower (boiler) kilowatts 9.803

I Go to top of page
To Convert Into Multiply By
inches centimeters 2.540
inches meters 0.002540
inches miles 0.00001578
inches millimeters 25.40
inches or mercury atmospheres 0.03342
inches of mercury feet of water 1.133
inches of mercury kgs/sq cm 0.03453
inches of mercury kgs/sq meter 345.3
inches of mercury pounds/sq ft. 70.73
inches of mercury pounds/sq in. 0.4912
inches of water (at 4C) atmospheres 0.002458
inches of water (at 4C) inches of mercury 0.07355
inches of water (at 4C) kgs/sq cm 0.002540
inches of water (at 4C) ounces/sq in. 0.5781
inches of water (at 4C) pounds/sq ft 5.204
inches of water (at 4C) pounds/sq in. 0.03613

J Go to top of page
To Convert Into Multiply By
joules Btu 0.0009480
joules ergs 10,000,000
joules foot-pounds 0.7376
joules kg-calories 0.0002389
joules kg-meters 0.1020
joules watt-hrs 0.0002778

K Go to top of page
To Convert Into Multiply By
kilograms grams 1,000.0
kilograms joules/cm 0.09807
kilograms joules/meter (newtons) 9.807
kilograms poundals 70.93
kilograms pounds 2.205
kilograms tons (long) 0.0009842
kilograms tons (short) 0.001102
kilograms/sq cm Dynes 980,665.
kilograms/sq cm atmospheres 0.9678
kilograms/sq cm feet of water 32.81
kilograms/sq cm inches of mercury 28.96
kilograms/sq cm pounds/sq ft 2,048.
kilograms/sq cm pounds/sq in 14.22
kilograms/sq meter atmospheres 0.00009678
kilograms/sq meter bars 0.00009807
kilograms/sq meter feet of water 0.003281
kilograms/sq meter inches of mercury 0.002896
kilograms/sq meter pounds/sq ft 0.2048
kilograms/sq in. pounds/sq in. 0.001422
kilogram-calories Btu 3.968
kilogram-calories foot-pounds 3,088.
kilogram-calories hp-hrs 0.001560
kilogram-calories joules 4,186.
kilogram-calories kg-meters 426.9
kilogram-calories kilojoules 4.186
kilogram-calories kilowatt-hrs 0.001163
kilogram meters Btu 0.009294
kilogram meters ergs 98,040,000
kilogram meters foot-pounds 7.233
kilogram meters joules 9.804
kilogram meters kg-calories 0.002342
kilogram meters kilowatt-hrs 0.000002723
kilometers feet 3,281.
kilometers inches 39,370
kilometers miles 0.6214
kilometers/hr cms/sec 27.78
kilometers/hr feet/min 54.68
kilometers/hr feet/sec 0.9113
kilometers/hr knots 0.5396
kilometers/hr meters/min 16.67
kilometers/hr miles/hr 0.6214
kilowatts Btu/min 56.92
kilowatts foot-lbs/min 44,260
kilowatts foot-lbs/sec 737.6
kilowatts horsepower 1.341
kilowatts kg-calories/min 14.34
kilowatts watts 1,000.0
kilowatt-hrs Btu 3,413.
kilowatt-hrs ergs 3.600 x 10 E13
kilowatt-hrs foot-lbs 2,655,000
kilowatt-hrs gram-calories 859,850.
kilowatt-hrs horsepower-hrs 1.341
kilowatt-hrs joules 3,600,000
kilowatt-hrs kg-calories 859.85
kilowatt-hrs kg-meters 3,671,000
kilowatt-hrs

pounds of water

(evaporated from & at 212F)

3.53
kilowatt-hrs

pounds of water

(raised from 62 to 212F)

22.75

L Go to top of page
To Convert Into Multiply By
liters bushels (U.S. dry) 0.02838
liters cu cm 1,000.0
liters cu feet 0.03531
liters cu inches 61.02
liters cu meters 0.001
liters cu yards 0.001308
liters gallons (U.S. liq.) 0.2642
liters pints (U.S. liq.) 2.113
liters quarts (U.S. liq.) 1.057
liters/min cu ft/sec 0.0005886
liters/min gals/sec 0.004403

M Go to top of page
To Convert Into Multiply By
meters centimeters 100
meters feet 3.281
meters inches 39.37
meters kilometers 0.001
meters miles (naut.) 0.0005396
meters miles (stat.) 0.0006214
meters millimeters 1,000
meters yards 1.094
meters varas 1.179
meters/min cms/sec 1.667
meters/min feet/min 3.281
meters/min feet/sec 0.05468
meters/min kms/hr 0.06
meters/min knots 0.03238
meters/min miles/hr 0.03728
meters/sec feet/min 196.8
meters/sec feet/sec 3.281
meters/sec kilometers/hr 3.6
meters/sec kilometers/min 0.06
meters/sec miles/hr 2.237
meters/sec miles/min 0.03728
miles (statute) centimeters 160,900
miles (statute) feet 5,280.
miles (statute) inches 63,360
miles (statute) kilometers 1.609
miles (statute) meters 1,609
miles (statute) miles (naut.) 0.868357
miles (statute) yards 1,760
miles/hr cms/sec 44.70
miles/hr feet/min 88.
miles/hr feet/sec 1.467
miles/hr kms/hr 1.609
miles/hr kms/min 0.02682
miles/hr knots 0.8684
miles/hr meters/min 26.82
miles/hr miles/min 0.1667
mil-feet cu inches 0.000009425
milliliters liters 0.001
millimeters centimeters 0.1
millimeters feet 0.003281
millimeters inches 0.03937
millimeters kilometers 0.000001
millimeters meters 0.001
millimeters miles 0.0000006214
millimeters mils 39.37
millimeters yards 0.001094
million gals/day cu ft/sec 1.54723

O Go to top of page
To Convert Into Multiply By
ounces drams 16.0
ounces grains 437.5
ounces grams 28.349527
ounces pounds 0.0625
ounces ounces(troy) 0.9115
ounces tons (long) 0.00002790
ounces tons (metric) 0.00002835
ounces (fluid) cu inches 1.805
ounces (fluid) liters 0.02957
ounces (troy) grains 480.0
ounces (troy) grams 31.103481
ounces (troy) ounces (avdp.) 1.09714
ounces (troy) pennyweights (troy) 20.0
ounces (troy) pounds (troy) 0.08333
ounces/sq. inch Dynes/sq cm 0.4309
ounces/sq in. pounds/sq in. 0.0625

P Go to top of page
To Convert Into Multiply By
parts/million grains/U.S. gal 0.0584
parts/million grains/Imp. gal 0.07016
parts/million pounds/million gal 8.345
pounds drams 256.
pounds dynes 444,823
pounds grains 7,000.
pounds grams 453.5924
pounds joules/cm 0.04448
pounds joules/meter (newtons) 4.448
pounds kilograms 0.4536
pounds ounces 16.0
pounds ounces (troy) 14.5833
pounds poundals 32.17
pounds pounds(troy) 1.21528
pounds tons (short) 0.0005
pounds (troy) grains 5,760.
pounds (troy) grams 373.24177
pounds (troy) ounces (avdp.) 13.1657
pounds (troy) ounces (troy) 12.0
pound-feet cm-dynes 0.0001356
pound-feet cm-grams 13,825.
pound-feet meter-kgs 0.1383
pounds/cu ft grams/cu cm 0.01602
pounds/cuff kgs/cu meter 16.02
pounds/cu ft pounds/cu in. 0.0005787
pounds/cu ft pounds/mil-foot 0.000000004456
pounds/cu in. kgs/cu cm 27.68
pounds/cu in. kgs/cu meter 27,680
pounds/cu in. pounds/cu ft 1,728.
pounds/cu in. pounds/mil-foot 0.000009425
pounds/sq ft atmospheres 0.0004725
pounds/sq ft feet of water 0.01602
pounds/sq ft inches of mercury 0.01414
pounds/sq ft kgs/sq meter 4.882
pounds/sq ft pounds/sq in. 0.006944
pounds/sq in. atmospheres 0.06804
pounds/sq in. feet of water 2.307
pounds/sq in. inches of mercury 2.036
pounds/sq in. kgs/sq meter 703.1
pounds/sq in. pounds/sq ft 144.0

Q Go to top of page
To Convert Into Multiply By
quarts (liq.) cu inches 57.75
quarts (liq.) cu meters 0.0009464
quarts (liq.) cu yards 0.001238
quarts (liq.) liters 0.9463

S Go to top of page
To Convert Into Multiply By
square centimeters circular mils 197,300
square centimeters sq feet 0.001076
square centimeters sq inches 0.1550
square centimeters sq meters 0.0001
square centimeters sq miles 386,100,000,000
square centimeters sq millimeters 100.0
square centimeters sq yards 0.0001196
square feet acres 0.00002296
square feet circular mils 183,300,000
square feet sq cms 929.0
square feet sq inches 144.0
square feet sq meters 0.09290
square feet sq miles 0.00000003587
square feet sq millimeters 92,900
square feet sq yards 0.1111
square inches circular mils 1,273,000
square inches sq cms 6.452
square inches sq feet 0.006944
square inches sq millimeters 645.2
square inches sq mils 1,000,000
square inches sq yards 0.0007716
square meters acres 0.0002471
square meters sq cms 10,000
square meters sq feet 10.76
square meters sq inches 1,550.
square meters sq miles 0.0000003861
square meters sq millimeters 1,000,000
square meters sq yards 1.196

T Go to top of page
To Convert Into Multiply By
temperature (C) +273 absolute temperature (C) 1.0
temperature (C) +17.78 temperature (F) 1.8
temperature (F) +460 absolute temperature (F) 1.0
temperature (F) -32 temperature (C) 5/9
tons of water/24 hrs gallons/min 0.16643
tons of water/24 hrs cu ft/hr 1.3349

W Go to top of page
To Convert Into Multiply By
watts Btu/hr 3.413
watts Btu/min 0.05688
watts ergs/sec 10,000,000
watts foot-pounds/min 44.27
watts foot-pounds/sec 0.7378
watts horsepower 0.001341
watts horsepower (metric) 0.001360
watts kg-calories/min 0.01433
watts kilowatts 0.001
watt-hours Btu 3.413
watt-hours ergs 36,000,000,000
watt-hours foot-pounds 2,656
watt-hours gram-calories 859.85
watt-hours horsepower-hrs 0.001341
watt-hours kilogram-calories 0.8598
watt-hours kilogram-meters 367.2
watt-hours kilowatt-hrs 0.001

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