Water loss • Recurrence • Cost
Water Leakage & Tank Overflow Cost Calculator
For households, plumbers and maintenance teams: convert an observed leak or tank overflow into estimated water loss and user-entered variable cost.
Describe the water loss
Your estimate
Enter your observed measurement, recurrence and your own cost basis.
- Calculated flow
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- Loss per event
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- Variable cost/event
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- Loss per active day
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- Average/calendar day
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- 360-day planning year
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- Annual variable cost
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— per month • — per planning year
Formula and planning convention
Flow = observed volume ÷ observed time. Event loss = flow × active duration. Monthly loss = event loss × events/active day × active days. Annual loss = monthly loss × 12. This is a 30-day month and 360-day planning year.
Worked example
At 10 L/min for 5 minutes, twice daily for 30 days, loss is 3,000 L (3 kL) per month. At ₹30/kL, proportional variable cost is ₹90.
Cost exclusions
Excludes slab billing, fixed and sewer charges, taxes, penalties, repair cost, damage, electricity and minimum tanker orders.
Sources
Estimate water lost and monthly cost from leaks or tank overflow using measured flow, duration, frequency and local water or pumping cost.
What to enter
Use current, project-specific values for measured flow, duration, frequency and local water or pumping cost. Check every unit before calculating and compare like-for-like inputs. The template controls the actual fields and calculations; this supporting copy does not replace its labels, formulas or result logic.
How to use the result
Treat water loss and monthly cost as estimates. Actual loss and cost vary with changing flow, event duration, tariff, pumping efficiency and measurement accuracy.
Before making a decision
Verify source measurements, equipment specifications and operating conditions. Have a qualified professional review the final selection, safety and installation requirements before purchase, connection or construction.