Calculate pH, pOH, [H⁺], and [OH⁻]
Calculate pH, pOH, [H⁺], or [OH⁻] from any one value. Input concentration or ion activity to solve for missing variables. Automatically handles strong and weak acids/bases using provided Ka or Kb values.
Showing 101–120 of 1,000 ranked alternatives.
Desmos, Inc.
Calculate, graph, and explore math functions
Perform complex calculations with trigonometric, statistical, and combinatorial functions. Define and evaluate custom equations. Graph mathematical expressions and explore multiple variables. Save and reuse calculations for future use.
Nidal Fakhouri
Calculate in binary, hex, and decimal simultaneously
Convert numbers between binary, hexadecimal, and decimal bases. Display all three bases simultaneously. Switch input modes and see results in all bases. Perform arithmetic, logic, and bitwise operations. Support unsigned and 2’s complement numbers.
Oak Driven LLC
Calculate , volume, mass, or molecular weight
Calculate , solution volume, solute mass, or molecular weight by inputting three variables. The fourth is automatically computed. Units can be adjusted for solution volume, solute mass, or molecular weight. Purchase in- to save custom compounds.
树鑫 赖
Solve equations, explore elements, learn concepts
Solve problems by snapping photos or typing questions. Get instant solutions with detailed explanations. Explore the periodic table with interactive elements. Track progress with built-in quizzes and practice exercises.
KISSAPP, S.L.
Calculate, convert, and solve with ease
Offers seven-in-one functions including basic, scientific, and unit conversion tools for currency, distance, weight, time, and data. Switch between modes by rotating the device. View operation history on the screen. Use degree or radian settings.
Cider Software LLC
Convert units and currencies instantly
A and unit/currency with a clean interface. Convert between 500 units across 29 categories and 161 currencies. Customize colors and display selected units. Enter values to instantly convert between units.
Pixel Pioneers LLC
Solve problems instantly
Solve and science problems by scanning or uploading equations. Provide step-by-step solutions and explanations. Identify common mistakes and suggest improvements. Offer practice problems and track progress over time.
Holy Edwards
Solve problems and get instant feedback
Solve , chemistry, and other subject problems with step-by-step explanations. Ask questions and receive instant answers. Personalize learning with adaptive difficulty and progress tracking. Share solutions with classmates.
Wuhan Ananta Technology Co., Ltd.
Calculate, convert, solve, track
Perform calculations using a basic, scientific, currency, and units calculator. View calculation history, convert numbers to speech, and synchronize results across all calculator modes.
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TranCreative Software
Convert units, calculate, and edit templates
Convert units and currencies across hundreds of categories with real-time exchange rates updated every 6 hours. Calculate mortgages, loans, tips, and fuel consumption. Edit, create, or download customizable templates for various conversions.
Corey Smith
Calculate in decimal, hexadecimal, and binary
Calculate in decimal, hexadecimal, and binary bases. Switch between bases during equations and view real-time conversions. Display values in all three bases simultaneously. Perform arithmetic operations across different number systems.
TLA Systems Ltd.
Calculate with advanced scientific functions
Perform complex calculations with support for hexadecimal, octal, and binary. Use RPN mode and multi-line display. Access unit conversions, constants, and scientific notation. View a paper tape and use multiple undo/redo functions.
Greg Hewgill
Calculate complex numbers and matrices
Perform complex number calculations and trigonometric functions. Handle matrix operations and numerical root finding. Calculate integrals and statistical values including linear regression. Write and execute custom programs. No ads or in- purchases.
Euclidus Inc
Solve problems instantly
Solve problems with step-by-step solutions. Input equations for automatic solving and animated explanations. Access over 1,000 sample problems. Use scientific and graphing calculators. Track progress and review detailed solutions.
Wai Kwong Lee
Calculate with constants and memory
SFX- performs basic arithmetic operations and allows calculations with a fixed constant. It includes non-volatile and volatile memory storage. It supports fraction and percentage calculations, linear regression, and statistical functions.
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