About this app

Plutocalc is the most complete and popular calculator for water treatment, wastewater, hydraulics, environmental chemistry and unit conversions. Plutocalc calculations were carefully tuned to require minimal inputs and provide accurate results based in the latest advances of science.

Features:
- 103 solvers
- 2670+ different calculations
- Self explanatory diagrams
- Internal databases for chemicals and standards
- Results as you type
- Multiple languages: English, Portuguese and Spanish
- Calculate and convert from the search bar
- 100% offline

** Try Plutocalc+ for premium features and early updates**

Solver list:

Conversions
- Angle
- Area
- Conductivity and resistivity
- Density and concentration
- Energy
- Flow - mass
- Flow - volumetric
- Flux and rates
- Forces
- Hardness in water
- Length
- Mass
- Power
- Pressure
- Speed
- Temperature
- Time
- Volume

Geometry
- Buffer tank capacity
- Cylinder volume
- Cone volume
- Cube volume
- Circle properties (radius, diameter, perimeter and area)
- Horizontal cylindrical tank volume
- Triangle properties with sides/angles determination
- Municipal plants capacity
- Nominal pipe sizes and wall thickness
- Sieve sizes according
- Rainfall volume

Energy and power
- Head loss in pipes
- Open channels or partially filled pipes
- Orifice plates with incompressible fluids
- Parshall flumes flow measurement
- Rectangular flumes flow measurement
- Flow adjustment for dosing/metering pumps
- Pump power and energy consumption
- Blowers and compressors power and energy consumption
- Mixing velocity gradient
- Reynolds number and speed

Contaminants
- Boiler water quality and blowdown
- CO2 conductivity
- Periodic table of elements with oxidation states
- Ionic Balance
- TOC, COD and KMnO4 relations
- Langlier Saturation Index - LSI
- Ryznar Stability Index - RSI
- Silt Density Index - SDI
- Modified Fouling Index - MFI
- Sludge Volume Index - SVI

Solutions
- Chemical dosing flow, mass and concentrations
- Dry chemical dosing flow
- Chemical solutions density database
- Water properties (viscosity, density, pH, conductivity)
- Gases properties (density and molecular weight)
- Oxygen solubility in water
- Multiple streams blending
- Specific gravity, Baumé, Brix and API relations

Adsorption and Ion Exchange
- Sorption/Exchange capacity
- Empty Bed Contact Time and BV/h
- Ion Exchange regeneration
- Ion Exchange softener design

Filters and membranes
- Cylindrical filter rate and speed
- Microfiltration / Ultrafiltration comparison and normalization
- Reverse Osmosis membranes and datasheets comparison
- Reverse Osmosis plant normalization and performance
- RO / NF skid designer
- Membrane Recovery
- Normalized permeability
- Granular media head loss (sand, resins, anthracite, carbon and custom)
- Granular media backwash expansion rate

Reactions
- Equilibrium for Carbonates, Ammonia, Sulfates, Boron, Sulfides, Silica, Phosphates and Nitrous Acid
- Disinfection with Chlorine, Chlorine Dioxide, Chloramines and Ozone
- Disinfection with Chlorine for Giardia Cysts
- Disinfection with UV
- Iron oxidation and precipitation
- Manganese oxidation and precipitation
- Sludge from chemicals
- Food-to-microorganisms ratio - F/M
- Ultimate BOD
- pH correction dosage

Clarifiers
- Surface loading rate - circular
- Surface loading rate - rectangular
- Hydraulic retention time - HRT
- Solids retention time - SRT
- Solids loading rate
- Volumetric solids loading rate
- Return activated sludge recycle - RAS
- Discrete sedimentation
- Sludge concentration and mass
- Sludge age

Finance
- Ordinary annuity
- Annuity due
- Compound annual growth rate - CAGR
- Interest rate conversions
- Simple interest

NOTICE ABOUT PRIVACY: No user data will be collected or sent by Plutocalc.

New features

Version 15.1
- Fixed mg/L to lb/ft³ unit conversion in the chemical dosing calculator
- Fixed startup crash in Android 10 and 11
Version 15
- New! colorful diagrams for 35 solvers
- New! Notepad auto-save feature to keep data between sessions
- New! clipboard integration with the operating system
- Support for the latest Android versions
- Fixed: internal navigation system
- Improved translations, descriptions and texts

App Permissions

Allows applications to open network sockets.