Online Tools

Rainwater Harvesting

Roof Drain Calculator	Infiltration Rate Calculator
Stormwater Management Calculator	Water Tank Volume Calculator

Water & Wastewater Engineering

Pipe Head Loss Calculator (Darcy-Weisbach Equation)	Water Demand Calculator
Tubewell discharge calculator (Trajectory Method)	Water Footprint Calculator
Activated Sludge Process (ASP) Calculator	Pump and Treat Calculator
Phytoremediation calculator

Climate Change

Car Carbon Footprint Calculator	Motorcycle Carbon Footprint Calculator
Air Emissions Calculator

Health and Lifestyle

Body Mass Index Calculator	Pool Salinity Calculator
Water Intake Calculator	Fuel Cost Calculator
LED Lighting Calculator	Plywood Calculator
Online Decibel Meter	Unit Convertor
Metal Weight Calculator

Earth and Space

Azimuth Calculator

Agriculture

Evapotranspiration Calculator (ETo)

Fertilizer Calculator