Water Stress Calculator

Calculate the Water Stress Index to assess pressure on water resources from human activities.

Water Balance

Total Water Withdrawal (million m3/year)

Available Renewable Water (million m3/year)

Environmental Flow Requirement (%)

Water needed to maintain ecosystem health

Return Flow (%)

Seasonal & Groundwater

Seasonal Variation (%)

Groundwater Depletion Rate (mm/year)

Aquifer Area (km2)

Water Stress Index

62.5%

High Stress

Usable Water

800.0M m3

Environmental Flow

200.0M m3

Net Consumption

350.0M m3

Seasonal Stress

62.5%

Stress Level Scale

0%20%40%80%100%

Groundwater Impact

Annual Depletion Volume:

10,000,000 m3/year

About Water Stress

Water stress occurs when water demand exceeds available supply during certain periods or when poor quality restricts use. High stress (>40%) indicates unsustainable use patterns.

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

ðŸ“š

Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.