Showing 81–100 of 1,000 ranked alternatives.
Pool and Spa Resources, LLC
Calculate chemicals accurately
Calculate chemical dosages for pools or hot tubs based on water volume and test results. Input pH, alkalinity, and sanitizer levels to determine treatment amounts. Export results and share with service professionals.
Ahmet Burak Albayrak
Convert units with precision
Convert units across , engineering, and everyday categories. Perform calculations with built-in formulas. Save frequently used conversions. Toggle dark mode. Switch between languages. Provide feedback for improvements.
Jian Yih Lee
Convert across length, area, mass, temperature,
Convert across categories including length, area, mass, temperature, volume, density, and flow rates. Switch between like km to miles or Celsius to Fahrenheit. Calculate torque and viscosity values. Export results and share conversions directly.
Atlas Educational Software
Elements, track progress, customize questions
Test your knowledge of chemical elements with customizable quizzes. Choose from three formats: find elements on the , multiple choice, or text input.
Rome Rock LLC
Convert units between metric and imperial systems
Convert units between metric and imperial systems including area, distance, speed, temperature, volume, time, weight, energy, and power. Calculate area, speed, distance, and volume with supported units. Switch between units quickly and accurately.
Harjot Singh
Convert units between categories with ease
Convert units across multiple categories including area, data, fuel-milage, length, power, pressure, speed, temperature, time, volume, and weight-mass. Switch between units with a single tap. View conversion results and history.
MigoApps, LLC
Test , learn facts, challenge others
Test your knowledge of chemical by guessing their names or atomic numbers. Learn element symbols, categories, and properties. Track progress and challenge yourself with increasing difficulty levels.
AGILE FLEX TECH SRL
Explore elements and conduct experiments
Explore chemical elements with detailed information and atom structure simulations. Conduct virtual chemistry experiments. Filter and search elements quickly. Download PDFs for each element. Access presentation galleries and movie clips.
Xiang Dong
, track progress, and master the periodic
The symbols, names, atomic numbers, and positions of all 118 through 78 levels and 36 challenges. Complete 9 modules covering element categories and a final module reviewing all . Track progress and reinforce knowledge with structured training.
Monte L Helm
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.
Jakub Klementewicz
Solve math problems step by step
Solve math problems step-by-step with detailed explanations. Input equations to see solutions. Learn algebra, functions, fractions, and graphs. Verify answers and track progress. Supports multiple math topics including linear and quadratic functions.
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.
博 彭
Look up element details instantly
Access element data including atomic number, weight, boiling point, density, molecular formulas, crystal structures, and electron energy levels. View a detailed with element characteristics and relationships.
Shanghai Mashang Yunxing Technology Co., Ltd.
Convert units, calculate formulas, solve equations
Offers basic and scientific functions for daily tasks and complex computations. It includes unit converters with 41 categories, allowing users to drag and sort units, switch base units, and perform accurate calculations.
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