30
DIMENSIONS (Feet and Inches)
TO CONVERT
TO
MULTIPLY BY
in ............................ mm .............. 25.4
in ............................ cm ................. 2.54
mm .......................... in ................... 0.03937
cm .......................... in ................... 0.3937
ft ............................. cm ............... 30.48
ft ............................. m ................... 0.3048
cm .......................... ft ................... 0.0328
m ............................ ft ................... 3.2808
STANDARD CONVERSIONS
One meter = 10 dm
one in. = 25.40 mm
One meter = 100 cm
one ft. = 304.80 mm
One meter = 1000 mm
AIR VELOCITY
TO CONVERT
TO
MULTIPLY BY
FPM ........................ m/s .................... 0.00508
m/s ......................... FPM ............... 196.85
AIR VOLUME
TO CONVERT
TO
MULTIPLY BY
CFM ........................ m3/sec .............. 0.000472
CFM ........................ m3/min ............... 0.02832
CFM ........................ m3/hr ................. 1.70
CFM ........................ Ltrs/sec ............. 0.472
m3/sec ................... CFM ............. 2118.88
m3/min .................... CFM ................. 35.31
m3/hr ...................... CFM ................... 0.5886
STATIC PRESSURE
TO CONVERT
TO
MULTIPLY BY
in. W.G .................... N/m2 .............. 248.84
N/m2 ....................... in. W.G. ............. 0.004
STANDARD CONVERSIONS
1.00" W.G. = 248.84
N/m2
or 248.84
Pascals (Pa)
or 2.49
Millibars
1.33" W.G. = 331 N/m2 or 331 Pa
1.50" W.G. = 373 N/m2 or 373 Pa
1.65" W.G. = 411 N/m2 or 411 Pa
1.70" W.G. = 423 N/m2 or 423 Pa
METRIC CONVERSION CHART
LEGEND
in.
=
inches
Pa.
=
Pascals
FPM
=
feet per minute
ft.
=
feet
U.S. gal.
=
U.S. gallon
m/s
=
meters per second
mm
=
milimeters
GPM
=
gallons per minute
in. W.G.
=
inches water gauge
cm
=
centimeters
L/s
=
liters per second
N
=
Newtons
dm
=
decimeters
Kpa
=
1000 Pascals
N/m2
=
Newtons per square meter
CFM
=
cubic feet per minute
psi
=
pounds per square inch
°
C.
=
degrees Celsius
m3/s
=
cubic meters per second
kg/m2
=
kilograms per square meter
BAR
=
one atmospheric pressure meter
L
=
Liters
°
F.
=
degrees Fahrenheit
(1000 millibars = 14.7 psi)
WATER FLOW/VOLUME
TO CONVERT
TO
MULTIPLY BY
U.S. ounce .............. Liters ................... .02958
U.S. gal ................... Liters ................. 3.785
Liters ...................... U.S. gal ............. 0.2642
GPM ....................... L/s ..................... 0.0631
L/s .......................... GPM ................ 15.850
STANDARD CONVERSIONS
one U.S. gal. ........... = ............... 3.785 Liters
one Liter ................. = ............... 0.2642 U.S. Gal.
one GPM/ft. ............ = ............... 0.063 L/s/ft.
or .............. 0.207 L/s/m
one U.S. gal. ........... = ............... 0.833 Imperial Gal.
one Imperial Gal. .... = ............... 4.546 Liters
WATER PRESSURE
TO CONVERT
TO
MULTIPLY BY
psi .......................... kg/m2 ............ 703.1
psi .......................... kg/cm2 .............. 0.0703
kg/m2 ..................... psi ..................... 0.0014
kg/cm2 ................... psi ................... 14.223
STANDARD CONVERSIONS
40 psi =
2.8 kg/cm2 80 psi =
5.6 kg/cm2
= 275.8 Kpa
= 551.6 Kpa
=
2.758 BAR
=
5.516 BAR
TEMPERATURE
TO CONVERT
TO
USE FORMULA
°
C ..........................
°
F ............
°
F = (
°
C • 1.8) + 32
°
F ..........................
°
C ...........
°
C = (
°
F - 32)
1.8
STANDARD CONVERSIONS
140
°
F. to 180
°
F. = 60
°
C. to 82
°
C.
WEIGHT
TO CONVERT
TO
MULTIPLY BY
lbs. ......................... N ....................... 4.448
lbs. ......................... kg ...................... 0.4536
N............................. lbs ..................... 0.2248
kg ........................... lbs ..................... 2.2046
PIPE SIZE
U.S. STANDARD
STANDARD METRIC
PIPE SIZES
EQUIVALENT PIPE SIZE
1/2" ................ = ...................... 15 mm
3/4" ................ = ...................... 20 mm
1" ........................ = ...................... 25 mm
1-1/4" .................. = ...................... 32 mm
1-1/2" .................. = ...................... 40 mm
2" ........................ = ...................... 50 mm
