Free Water Demand Calculator
Estimate the daily water demand for a community based on population and per-capita consumption.
Average Daily Demand
2,000 m^3/day
Average Daily Demand vs Population Served
Municipal Water Demand Estimation
Water demand planning starts with population and per-capita consumption estimates.
Formulas
Average daily demand = Population x Per capita consumption
Peak day demand = Average x Peak day factor
Per-capita consumption includes domestic, commercial, industrial, and losses (unaccounted-for water). Peak factors account for seasonal and daily variation.
Example Calculation
A town of 10,000 people with 200 L/person/day consumption and 1.5 peak factor.
- 01Average daily = 10,000 x 200 = 2,000,000 L/day = 2000 m^3/day = 2.0 MLD
- 02Peak daily = 2000 x 1.5 = 3000 m^3/day
- 03Peak flow = 10000 x 200 x 1.5 / 86400 = 34.7 L/s
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