About this app
WATER & WASTE MANAGEMENT, part of MultiEducator's "Formulator" line, is the essential tool for any Water & Waste Management engineer or engineering student. This comprehensive application contains over 245 specialized engineering formulas covering all major areas of water and wastewater engineering, plus nearly 900 conversion formulas — over 1,100 formulas in total. Engineering categories include: Water Flow, Groundwater, Sewage Treatment, Pollution, Activated Sludge & Sludge Digestion, Water Supply, Facilities (Chemical Dosing, Distribution, Disinfection & Laboratory), Storm Runoff, Sewer Pipe, Waste (Gases, Liquid & Solid), River Pollution, Hydraulics (Hazen-Williams, Darcy-Weisbach, Bernoulli), Pumping (Horsepower, NPSH, Affinity Laws), Water Treatment (Chlorine Dosage, CT Values, Chemical Feed Rates, Filtration), and Wastewater Operations (BOD Loading, SVI, F/M Ratio, MCRT, Detention Time, Removal Efficiency). The app also includes conversion calculators for Area & Volume, Pressures, Linear Measure, Weights, Liquid Measures, Cubic Measures, BTU, Horsepower, Watts, Power, Hydraulic, HVAC, Flows, and over 460 Metric conversions — plus eight temperature scale converters. All formulas display results in both US and Metric units with a single toggle. Calculations can be saved, exported, and shared. Toggle between US and Metric units instantly. If you need a formula we haven't included, just email us and we'll add it in the next update.
Latest release
What’s New
Minor bug fix
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 10, 2026 · 4:14 PM Free
Screenshots
