ट्याङ्कीमा कति पानी अट्छ?Measure the storage you have

पानी ट्याङ्कीमा कति लिटर अट्छ र कति दिन पुग्छ?How many litres does your water tank hold, and how many days will it last?

गोलो वा आयताकार ट्याङ्कीको भित्री नाप राख्नुहोस्। क्षमता, अहिले भएको पानी र घरमा पुग्ने दिनको अनुमान देखिन्छ।Enter the inside dimensions of a round or rectangular tank. See its capacity, water available now, and estimated household reserve days.

ट्याङ्की र घरको प्रयोगTank and household use

ट्याङ्कीको आकारTank shape

नापको एकाइDimension unit

भित्री लम्बाइInside length

भित्री चौडाइInside width

भित्री उचाइInside height

बाहिरी नापले tank wall को भाग पनि गन्छ। सकेसम्म भित्री नाप प्रयोग गर्नुहोस्।Outside dimensions include tank-wall thickness. Use inside measurements when possible.

अहिले भरिएकोCurrent fill level

घरका मानिसPeople in household

जनाpeople

एक जनाको दैनिक प्रयोगDaily use per person

L/day

100 L नमुना मात्र हो। Meter reading वा आफ्नै प्रयोग थाहा छ भने त्यसअनुसार बदल्नुहोस्।100 L is an example, not a universal household default. Replace it with your meter or observed use.

क्षमता र पुग्ने दिनCapacity and reserve

ट्याङ्कीको पूरा क्षमताFull tank capacity3,000 L3.00 m³

अहिले भएको पानीWater available now2,400 L

अनुमानित reserveEstimated reserve6.0 days

घरको दैनिक प्रयोगHousehold daily use400 L/day

पानीको हरेक 1 cmEach 1 cm of water depth30.0 L

यो अनुमान होThis is an estimate

ट्याङ्की गोलो वा सिधा आयताकार नभए, भित्ता बाक्लो भए, तलको पानी ननिस्किए वा दैनिक प्रयोग बदलिँदा नतिजा फरक पर्छ। यो structural, plumbing वा खानेपानी safety design होइन।Irregular shape, wall thickness, unusable bottom water, and changing daily use alter the result. This is not structural, plumbing, or drinking-water safety design.

हिसाब कसरी हुन्छ?How the calculation works

सबै नाप पहिले metre मा बदलिन्छ। 1 cubic metre मा 1,000 litre हुन्छ। पुग्ने दिन निकाल्न अहिले भएको पानीलाई घरको दैनिक प्रयोगले भाग गरिन्छ।All dimensions are first converted to metres. One cubic metre equals 1,000 litres. Reserve days divide the water available now by entered daily household use.

rectangular volume = inside length × inside width × inside height
round-cylinder volume = π × (inside diameter ÷ 2)² × inside height
capacity litres = volume in m³ × 1,000
available litres = capacity × current fill %
daily household use = people × entered litres/person/day
reserve days = available litres ÷ daily household use

Feet लाई exact 0.3048 m र centimetre लाई 0.01 m ले बदलिन्छ। ट्याङ्कीको तल पानी बाँकी रहन्छ भने fill level घटाएर conservative हिसाब गर्नुहोस्।Feet convert with the exact factor 0.3048 m and centimetres with 0.01 m. Reduce the fill level for a conservative estimate if some bottom water cannot be drawn.

नमुना हिसाबWorked example

भित्री नाप 2 m × 1.5 m × 1 m भएको आयताकार ट्याङ्की 80% भरिएको छ। घरमा 4 जना छन् र नमुनाका लागि एक जनाले दिनमा 100 L प्रयोग गरेको मानिएको छ।A rectangular tank has inside dimensions 2 m by 1.5 m by 1 m and is 80% full. The example household has four people using an illustrative 100 L per person each day.

2 × 1.5 × 1 = 3.00 m³पूरा volumefull volume

3.00 × 1,000 = 3,000 Lपूरा क्षमताfull capacity

3,000 × 80% = 2,400 Lअहिले भएको पानीwater available now

4 × 100 = 400 L/dayघरको दैनिक प्रयोगdaily household use

2,400 ÷ 400 = 6.0 daysअनुमानित reserveestimated reserve

स्रोत र मान्यताSources and assumptions

NIST, Circumference, Area and Volume, updated 18 May 2026 and checked 29 Aug 2026. NIST gives rectangular capacity as length × width × depth and cylinder volume as 0.7854 × diameter² × height.
NIST Guide to the SI, Appendix B.9, updated 18 Aug 2025 and checked 29 Aug 2026. It supports the length and volume unit conversions used here.
Nepal Urban Water Supply and Sanitation Project, Design Guidelines Version 4.0, checked 29 Aug 2026. The official guidance uses 100 litres/person/day for fully plumbed private connections and lower design values for some other service levels.
WHO, Domestic Water Quantity, Service Level and Health, second edition, checked 29 Aug 2026. WHO explains that household water quantity varies with accessibility, reliability, price, and the uses being met.

100 L/person/day planning example हो, तपाईंको घरको पक्का खपत होइन। Tank capacity का लागि भित्री नाप र reserve days का लागि meter वा आफ्नै दैनिक प्रयोग सबैभन्दा उपयोगी हुन्छ।The 100 L/person/day value is a planning example, not a claim about your home. Inside dimensions are best for tank capacity, while a meter or observed daily use is best for reserve days.