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The complete toolkit for water & irrigation engineering

One platform. Every calculation you reach for — from pump selection and pipe hydraulics to irrigation design, water treatment and aquaculture.

345
Engineering calculators
21
Disciplines covered
AS/NZS
Standards-aligned

A taste of what's inside

345 calculators, organised across 21 engineering disciplines.

Aquaculture53
RAS biofilters, aeration, ammonia & oxygen balance, tank turnover.
Pumps & Pump Stations33
Pump selection, NPSH, duty/standby, wet-well & VSD sizing.
Pipe Hydraulics32
Friction loss, pipe sizing, velocity, pressure & water hammer.
Irrigation — Field & Crop28
Crop water demand, ETo, scheduling & application rates.
Electrical Power & Cable23
Cable sizing (AS/NZS 3008), voltage drop, arc flash & protection.
Water Treatment23
Filtration, disinfection, dosing, membrane & RO design.
Irrigation Advanced Design20
Hydraulic zoning, mainline/submain & emitter uniformity.
Protected Cropping & Greenhouse19
Fogging, heating/cooling loads, ventilation & CO₂.
Stormwater & Drainage16
Rational method, detention, pipe & channel capacity.
Instrumentation & Control14
4–20 mA scaling, sensor ranging, loop & signal design.
Chemicals, Dosing & Chemistry12
Dose rates, compatibility, pH/alkalinity & LSI.
Tanks, Dams & Storage11
Volume, drawdown, turnover, freeboard & overflow.
Wastewater & Sewage10
Activated sludge, aeration, loading & pump stations.
Valves, PRVs & Backflow9
Valve & PRV sizing, air valves, surge & backflow.
Commercial, Energy & Lifecycle8
Energy use, lifecycle cost, efficiency & payback.
Filtration — Ag & Process8
Screen, media & disc filters, backwash & flux rates.
Ventilation & Safety7
Air change rates, gas dilution, extraction & safety.
Domestic Water & Pumps6
Household demand, pressure pumps, rainwater & tanks.
Solar & Off-Grid Power6
Solar pump sizing, battery & array, off-grid energy.
Swimming Pools5
Turnover, chemical balance, pump & filter sizing.
Conversions & Reference2
Engineering unit conversions & quick reference.
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