Environmental Engineering FOURTH EDITION

448 ENVIRONMENTAL ENGINEERING

Multiply BY To obtain

gallons
gallons
galldaylft2
gal/min

gallmin

gallmin

million gallday
million gallday
million gallday

grams

gallmin

gallmin/ft2

hectares

horsepower

inches

inches of mercury

inches of mercury

inches of water

joule
joule
joule
joule
joule

JIS

Jig

kilograms

kg

kgma

kgflh

wm3

wm3

kilometers

kmm

kilowatts

kwh

3.78 x 10-~

2.23 x 10-~

6.31 x 10-~

3.78

0.0407

0.063 1

0.227

2.42

43.8

3785

0.0438

2.2 x 10-~

2.47

0.745

2.54

0.49

3.38 x Id

249

0.239

0.738

1

0.430

1

9.48 x 10-~

2.78 x 10-7

2.2

0.893

2.2

0.0624

1.68

0.622

0.622

1.341

3600

1.1 x 10-~

m3

liters

m31daylm2

ft31S

literls

m3/h

m3/s

m3~m2

literds

m31day

m3/s

lb

acre

kW

cm

lblin.2

newton/m2

newton/m2

calorie

BtU

ft lb

kwh

newton meter

Btdb

watt

Ib ( mass)

tons

lblacre

Ibh

lblft3

lblyd3

mile

horsepower

kilojoule

mph

(continued)