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Conversions, Calculations
& Data
Temperature Conversion
| Fahrenheit
= 9/5Centigrade + 32
or |
Centigrade =
5/9(Fahrenheit - 32) |
|
|
C
15
20
25
30
35 |
F
59
68
77
86
95 |
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Water Hardness
1 German degree (dKH or dGH) = 17.9 ppm
degrees "General Hardness" (GH) = 0.056 ppm CaCO3
degrees "Carbonate Hardness/Alkalinity" (KH) = 0.056 ppm CaCO3
US/Metric Conversions
1 ppm = 1mg/L
1 ounce (oz) = 28.35 gm
1 pound (lb) = 16 oz = .4536 kg
1 Liter = 0.264 Gallon
1 Gallon = 3.89 Liter
1 Gallon = 231 cu inches (in^3)
| Gallons |
|
Liters |
| 5 1/2 |
= |
21.4 |
| 10 |
= |
38.9 |
| 20 |
= |
77.8 |
| 30 |
= |
116.7 |
| 45 |
= |
175 |
| 50 |
= |
194.5 |
| 75 |
= |
291.7 |
| 90 |
= |
350 |
| 120 |
= |
466.8 |
1 Meter = 39.4 inches
1 Inch = 2.54 cm
1 Foot = 12 inches = .3048 m
1 Yard = 36 inches = .9144 m
1 Mile = 1760 yards = 1.6093 km
1 square inch
(in^2) = 6.4516 cm^2
1 square foot (ft^2) = 144 in^2 = .093 m^2
1 cubic
inch (in^3) = 16.387 cm^3
1 cubic foot (ft^3) = 1728 in^3 = .028 m^3
Tank Size, Weight & Pressure
Calculations
NOTE 1: The weights used in this section are
approximate and to be used for
estimating only!!!
NOTE 2: The calculated
weights DO NOT include the additional weight of your
stand or interior
decorations! (ie. rocks, ornaments, gravel, etc.)
1 gallon of H2O = 8.6
lbs
Example:
30 Gallon tank => (36 x 12 x 16) = 6912 in^3
6912 in^3 /
231 in^3/Gallon = 29.92 Gallons of H2O
29.92 Gallons x 8.6 lbs/Gallon =
257.33 lbs of H2O
257.33 lbs of H2O + 43 lbs empty tank weight = 300.33
lbs full weight
| Tank Size |
Dimensions
(inches) (L
x W x H) |
Empty Weight
Glass Tank(lbs) |
Full Weight
(lbs) |
| 5 1/2 Gallon |
16 x 8 x 10 |
7 |
54.6 |
| 10 Gallon |
20 x 10 x 12 |
11 |
100.3 |
| 10 Hexagon |
14 x 12 x 18 |
12 |
124.6 |
| 20 High |
24 x 12 x 16 |
25 |
196.5 |
| 20 Hexagon |
18 x 16 x 20 |
23 |
237.4 |
| 30 Gallon |
36 x 12 x 16 |
43 |
300.3 |
| 45
Gallon |
36 x 12 x 23 |
66 |
435.9 |
| 50 Gallon |
36 x 19 x 19 |
100 |
583.8 |
| 60 Hexagon |
27 x 24 x 29 |
110 |
809.6 |
| 65 Gallon |
36 x 19 x 24 |
126 |
737 |
| 75 Gallon |
48 x 18 x 21 |
140 |
815.5 |
| 90 Gallon |
48 x 18 x 25 |
160 |
964 |
| 120 Gallon |
48 x 24 x 25 |
215 |
1287.2 |
| 150 Gallon |
72 x 18 x 28 |
338 |
1688.9 |
| 180 Gallon |
72 x 24 x 25 |
338 |
1946.3 |
The pressure at the bottom of the tank: (psi) = Total Weight / Tank bottom
area
(L x W).
Example:
30 Gallon tank => 36 in x 12 in = 432 in^2
psi =
300.3 lbs / 432in^2 =0.695 psi
0.695 psi x 144 in^2/foot^2 = 100 psf
NOTE
3:
Standard building code uses 75 psf loading on a single wood joist.
Therefore, in
the above example, you should actually place this tank
across 2 floor joists. Don't
forget the additional weight of your tank
stand, gravel, and interior decorations.
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