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Water Tank Size Calculator

Water Tank Size Calculator
Sectional and One Piece Tank Sizing Calculator
Calculate your water tank size in three steps!
1. Choose your capacity type and enter the volume in litres
2. If applicable, enter the available space you have (Not the tank size)
3. If applicable, enter any structural loading weight restrictions
(Please click on the ? symbols for explanations for each category)
Tank size output is available in three capacities, nominal capacity, actual capacity & actual useable capacity.
(Select the drop down arrow under capacity type).
The calculator is based on hot press IFB sectional and one piece tanks complete with float valve housing and up elbow overflow arrangement with 3” outlet.
(Please note actual and useable capacities are typical and for guidance purposes only)
Enter Water Tank Capacity
Litres
Capacity Type
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Max Length
Max Width
Max Height
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Weight Restriction
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Select Tank Type
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One Piece Tanks
Sectional Tanks
Increase Range of Tank Volume Capacity Results By
One Piece Tanks
Sorry, but we do not have a Sectional Tank that matches your calculation.
Maybe there is a solution we can help you with?.
Sectional Tanks
Sorry, but we do not have a Sectional Tank that matches your calculation.
Maybe there is a solution we can help you with?.
One Piece Tanks
Dimensions
Tank Capacities
Weight
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Standard
Tank
Drawing
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A
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Length
Width
Height
Nominal
Actual
Actual Useable
Dry Tank
Filled Tank
Sorry, but we do not have a One Piece Tank that matches your calculation.
Maybe there is a solution we can help you with?.
Sectional Tanks
Dimensions
Tank Capacities
Weight
Copy
Result
to
Clipboard
Download
Standard
Tank
Drawing
REQUEST
A
QUOTE
Length
Width
Height
Nominal
Actual
Actual Useable
Dry Tank
Filled Tank
Sorry, but we do not have a Sectional Tank that matches your calculation.
Maybe there is a solution we can help you with?
Have you considered a TIF Tank for further customisation?
Totally Internally Flanged tanks are fully customisable with less external space needed for installation, maximising the space available.
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UK Gallons to Litres
Conversion Table
UK Litres to Gallons
Conversion Table

What are the different capacity types?

Nominal Capacity

Volume of water when water tank is full to the brim

Actual Capacity

Water volume from the base of the tank to the overflow

Actual Useable Capacity

Water Volume from above the outlet to the overflow.

Nominal vs actual capacity illustration

In the conversion tables below, result figures for litres and gallons are rounded to a maximum of 5 decimal places (7 with smaller numbers) to give approximations.

UK Gallons to Litres Conversion Table
UK Gallons Litres
1 UK Gallon 4.54609 Litres
2 UK Gallons 9.09218 Litres
3 UK Gallons 13.63827 Litres
4 UK Gallons 18.18436 Litres
5 UK Gallons 22.73045 Litres
6 UK Gallons 27.27654 Litres
7 UK Gallons 31.82263 Litres
8 UK Gallons 36.36872 Litres
9 UK Gallons 40.91481 Litres
10 UK Gallons 45.4609 Litres
11 UK Gallons 50.00699 Litres
12 UK Gallons 54.55308 Litres
13 UK Gallons 59.09917 Litres
14 UK Gallons 63.64526 Litres
15 UK Gallons 68.19135 Litres
16 UK Gallons 72.73744 Litres
17 UK Gallons 77.28353 Litres
18 UK Gallons 81.82963 Litres
19 UK Gallons 86.37572 Litres
20 UK Gallons 90.92181 Litres
Litres to UK Gallons Conversion
Litres UK Gallons
1 Litre 0.21997 UK Gallons
2 Litres 0.43994 UK Gallons
3 Litres 0.65991 UK Gallons
4 Litres 0.87988 UK Gallons
5 Litres 1.09985 UK Gallons
6 Litres 1.31982 UK Gallons
7 Litres 1.53978 UK Gallons
8 Litres 1.75975 UK Gallons
9 Litres 1.97972 UK Gallons
10 Litres 2.19969 UK Gallons
11 Litres 2.41966 UK Gallons
12 Litres 2.63963 UK Gallons
13 Litres 2.8596 UK Gallons
14 Litres 3.07957 UK Gallons
15 Litres 3.29954 UK Gallons
16 Litres 3.51951 UK Gallons
17 Litres 3.73948 UK Gallons
18 Litres 3.95945 UK Gallons
19 Litres 4.17942 UK Gallons
20 Litres 4.39938 UK Gallons

Logic for Conversion

How many Litres are there in 1 UK Gallon?

There are 4.5460902819948 Litres in 1 UK Gallon. To convert from UK Gallons to Litres, multiply your figure by 4.5460902819948 (or divide by 0.21996923465436).

How many UK Gallons are there in 1 Litre?

There are 0.21996923465436 UK Gallons in 1 Litre. To convert from Litres to UK Gallons, multiply your figure by 0.21996923465436 (or divide by 4.5460902819948).

 

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