|
|
CONVERSION FACTORS
Length
Surface
Volume
Discharge/Flow
Velocity
Weight, Mass
Pressure
Angular Distance
Power
Work
Hydrologic Equivalents
Length
|
Multiply
|
By
|
To Obtain
|
|
Miles
|
1.60935
|
Kilometers
|
|
1,760
|
Yards
|
|
5,280
|
Feet
|
|
63,360
|
Inches
|
|
Meters
|
0.00062137
|
Miles
|
|
1.0936
|
Yards
|
|
3.28088
|
Feet
|
|
39.37
|
Inches
|
|
100
|
Centimeters
|
|
0.001
|
Kilometers
|
|
Yards
|
0.9144
|
Meters
|
|
0.00056818
|
Miles
|
|
3
|
Feet
|
|
36
|
Inches
|
|
Feet
|
0.3048
|
Meters
|
|
0.00018939
|
Miles
|
|
0.33333
|
Yards
|
|
12
|
Inches
|
|
Inches
|
0.08333
|
Feet
|
|
0.027778
|
Yards
|
|
0.000015783
|
Miles
|
|
2.54
|
Centimeters
|
Surface
|
Multiply
|
By
|
To Obtain
|
|
Square Miles
|
4,014,489,600
|
Square inches
|
|
27,878,400
|
Square feet
|
|
3,097,600
|
Square yards
|
|
640
|
Acres
|
|
259
|
Hectares
|
|
Acres
|
0.0015625
|
Square miles
|
|
43,560
|
Square feet
|
|
4,840
|
Square yards
|
|
4,047
|
Square meters
|
|
0.404687
|
Hectares
|
|
Square yards
|
0.0000003228
|
Square miles
|
|
9
|
Square feet
|
|
1,296
|
Square inches
|
|
0.83613
|
Square meters
|
|
0.0002066
|
Acres
|
|
Square feet
|
0.0000003587
|
Square miles
|
|
0.11111
|
Square yards
|
|
144
|
Square inches
|
|
0.092903
|
Square meters
|
|
Square inches
|
0.0000000002491
|
Square miles
|
|
0.0007716
|
Square yards
|
|
0.006944
|
Square feet
|
|
6.45163
|
Square centimeters
|
|
0.0000001594
|
Acres
|
Volume
|
Multiply
|
By
|
To Obtain
|
|
Acre-feet
|
325,851
|
US Gallons
|
|
43,560
|
Cubic feet
|
|
1,613.3
|
Cubic yards
|
|
1,233.49
|
Cubic meters
|
|
Cubic yards
|
46,656
|
Cubic inches
|
|
27
|
Cubic feet
|
|
0.00061983
|
Acre-feet
|
|
0.76456
|
Cubic meters
|
|
Cubic feet
|
1,728
|
Cubic inches
|
|
7.4805
|
US gallons
|
|
0.000022957
|
Acre-feet
|
|
0.037037
|
Cubic yards
|
|
28.317
|
Liters
|
|
US Gallons
|
231
|
Cubic inches
|
|
0.13368
|
Cubic feet
|
|
0.00000307
|
Acre-feet
|
|
3.78543
|
Liters
|
|
Cubic inches
|
16.3872
|
Cubic centimeters
|
|
0.0005787
|
Cubic feet
|
|
0.004329
|
US Gallons
|
Discharge/Flow
|
Multiply
|
By
|
To Obtain
|
|
Cubic feet per second
|
448.8
|
US gallons per minute
|
|
60
|
Cubic feet per minute
|
|
3,600
|
Cubic feet per hour
|
|
86,400
|
Cubic feet per day
|
|
723.97
|
Acre-feet per year
|
|
1.984
|
Acre-feet per day
|
|
0.9917
|
Acre-inches per hour
|
|
50
|
Miner's inch in ID, KN, NB, SD, ND, NM, UT, WA
|
|
40
|
Miner's inch in AZ, MT, OR, NV, CA
|
|
38.4
|
Miner's inch in CO
|
|
0.028317
|
Cubic meters per second
|
|
1.699
|
Cubic meters per minute
|
|
101.941
|
Cubic meters per hour
|
|
2,446.58
|
Cubic meters per day
|
|
Million gallons per day
|
1.547
|
Cubic feet per second
|
|
3.07
|
Acre-feet per day
|
|
2.629
|
Cubic meters per minute
|
|
US gallons per minute
|
0.06309
|
Liters per second
|
|
3.7854
|
Liters per minute
|
Velocity
|
Multiply
|
By
|
To Obtain
|
|
Feet per second
|
0.68
|
Miles per hour
|
|
1.097
|
Kilometers per hour
|
|
30.48
|
Centimeters per second
|
|
Inches per hour
|
2.54
|
Centimeters per hour
|
|
Feet per year
|
0.3048
|
Meters per year
|
Weight, Mass
|
Multiply
|
By
|
To Obtain
|
|
Pounds, avoirdupois
|
0.4536
|
Kilograms
|
|
16
|
Ounces
|
|
7,000
|
Grains
|
|
1.215
|
Pounds, troy
|
|
Kilograms
|
1000
|
Grams
|
|
15,432
|
Grains
|
|
2.2046
|
Pounds, avoirdupois
|
|
Tons (2,000 pounds)
|
907.185
|
Kilograms
|
Pressure
|
Multiply
|
By
|
To Obtain
|
|
Atmosphere, at sea level
|
76
|
Centimeters of mercury
|
|
29.92
|
Inches of mercury
|
|
33.90
|
Feet of water
|
|
14.70
|
Pounds per square inch
|
|
Feet of water column (at 20° C)
|
2.246
|
Centimeters of mercury column
|
|
0.03041
|
Kilograms per square centimeter
|
|
0.4333
|
Pounds per square inch
|
Angular Distance
|
Multiply
|
By
|
To Obtain
|
|
Degrees
|
60
|
Minutes
|
|
3,600
|
Seconds
|
|
0.07145
|
Radians
|
Power
|
Multiply
|
By
|
To Obtain
|
|
Horsepower
|
33,000
|
Foot-pounds per minute
|
|
550
|
Foot-pounds per second
|
|
745.7
|
Watts
|
|
0.7457
|
Kilowatts
|
|
1.014
|
Horsepower (metric)
|
|
Horsepower (metric)
|
75
|
Kilogram-meters per second
|
Work
|
Multiply
|
By
|
To Obtain
|
|
British thermal units
|
778
|
Foot-pounds
|
|
1,055
|
Joules
|
Hydrologic Equivalents
1 cubic feet per second falling 8.81 feet = 1 horsepower
1 cubic feet per second falling 10.0 feet = 1.135 horsepower
1 cubic feet per second falling 11.0 feet = 1 horsepower at 80-percent efficiency
1 cubic feet per second flowing for 1 year will cover 1 square mile 1.131 feet, or 13.572 inches, deep
1 inch depth of water on 1 square mile = 2,323,200 cubic feet = 0.0737 cubic feet per second for 1 year
1 cu ft = 7.48 U.S. Gallons = 62.5 lbs.
1 cfs (cu. ft per sec) 450 GPM = 50 miners inches
for 1 hour = 1 acre inch
for 24 hrs= 1.983 acre feet
for 30 days = 59.5 acre feet
for 1 year = 724 acre feet
1 cfs = 646,317 gals. per day
200 cfs = 90,000 gal per minute
1,000,000 gals = 3.07 acre feet
1,000,000 gals. per day = 694.4 GPM = 1.55 cfs
1,000 GPM = 2.23 cfs + 4.42 Acre feet per day
10 cents per 1000 gals. = $32.59 per acre foot
1 acre foot supplies family of 5 for 1 year
|
|
|
|
