Choosing the right Water Storage Tank shouldn’t feel confusing, and it won’t after today. Most people have no idea how much water they actually use in a day, and that’s exactly why tanks run out too fast or end up oversized. The good news? A few simple calculations can help you pick the perfect tank size for your home, shop, or building. No technical language, no complicated math, just clear formulas, easy examples and practical tips so you never face a water shortage again. Let’s get started.
“The right water tank size doesn’t store more water, it stores peace of mind.”
A Simple Calculation for Choosing the Right Tank
Choosing the right water tank size is not difficult.You only need to understand how much water your home uses every day. In this blog, we will explain this in the simplest language, with easy formulas, clear examples, and helpful recommendations.
If you are planning to buy a strong, long-lasting tank, you can also explore TMT Plus water tanks for reliable options.
Why Tank Size Matters
A tank that is too small will run out of water often.A tank that is too large wastes space and money. So the goal is simple:
Choose a Water Storage Tank that stores enough water for one full day of use.
1. Daily Water Use Per Person
In most Indian homes, one person uses 135–150 liters of water per day.
his includes:
- Drinking & cooking
- Bathing
- Washing clothes
- Washing utensils
- Toilet flushing
- Cleaning
For easy calculation, let’s use:
Standard Value: 150 liters per person per day
2. Simple Formula to Calculate Tank Size
Formula:
Total Tank Size = Number of People × 150 liters
That’s it.
3. Real Life Examples
- Example 1: Family of 3
Total Tank Size = 3 × 150
= 450 liters
Recommended tank: 500 liters
- Example 2: Family of 4
Total Tank Size = 4 × 150
= 600 liters
Recommended tank: 750 liters
(Extra storage is always helpful) - Example 3: Joint Family (6 People)
Total Tank Size = 6 × 150
= 900 liters
Recommended tank: 1000 liters
- Example 4: Small Commercial Shop (2 people + cleaning)
Daily use = (2 × 150) + 100 extra
= 300 + 100
= 400 liters
Recommended tank: 500 liters
4. Do You Need Extra Capacity?
You may need a bigger tank if:
- Water supply comes only once a day
- You live in a top-floor apartment
- You have a garden
- You use a washing machine daily
- You want backup water for guests or emergencies
Add 10–20% extra capacity in these cases.
Formula for Extra Capacity:
Final Tank Size = (Number of People × 150) × 1.2
Example:
4 people → 600 liters
With 20% extra → 600 × 1.2 = 720 liters
So, 750-liter tank is ideal.
5. Choosing a Good Quality Tank
A good Water Storage Tank protects water from heat, germs, and contamination. Always choose tanks made from food-grade material, with UV protection and a strong multi-layer design.
Trusted brands follow strict Water Tank Manufacturing processes to ensure long-lasting strength, safety, and hygiene.
6. Still Need Help Choosing the Perfect Size?
If you want personalised help or expert advice, the TMT Plus team is ready to guide you. Contact us for reliable solutions and Water Storage Tank options engineered for long-term performance.
Contact us for expert guidance, reliable solutions, and products engineered for long-term performance. Visit us to explore quality-driven innovations, technical expertise, and performance-focused product solutions. Choosing the right water tank capacity isn’t just about storage, it’s about matching daily usage, household size, and future needs to ensure uninterrupted, efficient water supply without wastage.
Final Recommendation
For most homes:
- 3–4 people: 500–750 liters
- 5–6 people: 1000 liters
- 7+ people: 1500 liters
Choosing TMT Plus Water Storage Tank solutions ensures superior strength, hygienic water storage, UV-resistant material, and long-lasting durability. Designed for Indian conditions, they prevent leakage, resist weather damage and maintain water purity year after year,making them a smart, reliable investment for homes, buildings and industries alike.
