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Water Tank Calculator
Calculate water tank size based on family members with overhead & underground recommendations
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Indian standard: 135 L/person/day (IS 1172)
Daily Water Requirement
540 L
142.7 gallons / day
Overhead Tank (1-day)
750 L
Need: 540 L
Underground Tank (2-day)
1,500 L
Need: 1080 L
Standard Tank Sizes
500 L750 L (OH)1,000 L1,500 L (UG)2,000 L3,000 L5,000 L
Usage Breakdown (per person/day)
Drinking & Cooking: 10 L
Bathing: 55 L
Washing Clothes: 20 L
Cleaning / Utensils: 15 L
Toilet Flushing: 30 L
Other: 5 L
About Water Tank Calculator
Water Tank Calculator is a free online tool available on SabTools.in. Calculate water tank size based on family members with overhead & underground recommendations. This tool is completely free to use, requires no signup, and works instantly in your browser. Your data stays private as all calculations happen on your device.
How to use Water Tank Calculator?
- Enter the required values in the input fields above
- The results will be calculated automatically in real-time
- You can copy or share the results as needed
Why use SabTools.in?
- 100% free โ no signup, no limits, no hidden fees
- Lightning fast โ runs instantly in your browser
- Privacy first โ your data never leaves your device
- Mobile friendly โ works on any phone, tablet or computer
- Made for India โ Indian number formats, GST, EMI & more
Frequently Asked Questions
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