Water Tank Capacity
Litres, dimensions and demand check for overhead or underground tanks.
Inputs
Results
Enter your values, then press Calculate Now to evaluate the output.
Guide — Water Tank Capacity
The water tank calculator below follows standard Indian construction practice and the relevant IS-code conventions. Enter the site dimensions exactly as measured, press Calculate Now, then refine the quantities line by line in the live sheet before you export.
One cubic metre holds exactly 1000 litres, so tank capacity is simply length × width × liquid depth × 1000. Always quote the liquid depth, not the internal height, because 150–300 mm of freeboard is not usable storage.
CPHEEO recommends 135 litres per capita per day for a domestic connection with full flushing. Design for one day of overhead storage plus one to two days of underground sump storage in areas with intermittent supply.
A full tank is heavy: a 5000-litre overhead tank imposes five tonnes plus its own weight on the supporting structure, which must be checked in the column and beam design.
Treat every output as an indicative pre-tender estimate. Site conditions, wastage allowances, specification changes and local market rates all move the final figure, so validate against your drawings and approved rate analysis before procurement.
Master Measurement Sheet
| Sr. No. | Description | Unit | NOS 1 | NOS 2 | L | B | D | QTY | Action |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.000 |
Ratings & reviews
What engineers say about the Water Tank Capacity.
Leave a review
Sign in to rate this calculator. Reviews are published after moderation.
About the Water Tank Capacity
This tool is built for site engineers, quantity surveyors, contractors and property investors who need dependable numbers fast. Every input is reactive — changing a single field instantly recomputes the full output set, so you can run sensitivity checks on dimensions, grades and rates before committing to an estimate.
Keep unit consistency in mind: metric inputs (metres, square metres, cubic metres) produce metric outputs, with imperial and Indian trade units shown alongside where they are commonly used on site.