CalculatorTray
Free online calculator collection
Collection of free online calculators for percentages, compound interest, unit conversion and more. For everyday life, studies and work.
About CalculatorTray
CalculatorTray is a collection of free online calculators for various use cases. From percentage calculations to compound interest to unit conversion, you will find the right calculator for everyday life, studies or work.
How It Works
You select the appropriate calculator from the overview. Then you enter your values and the result is immediately calculated and displayed.
Some calculators additionally show charts, tables or step by step explanations. The compound interest calculator for example shows a table with wealth growth per year.
Use Cases
Students use the math calculators for practice problems and exam preparation.
For financial planning, users calculate compound interest, loan installments or savings plan results.
In everyday life, percentage and tip calculators are the most used tools.
Health conscious users calculate BMI, calorie consumption or ideal weight.
Engineers and technicians use the unit converter for quick conversions between metric and imperial units.
Technologies
Built with HTML, CSS and JavaScript. All calculations take place on the client side. Monetization through Google AdSense.
Privacy
No inputs are stored or transmitted. All calculations run locally in the browser.
Calculation
Pick calculator
Enter values
Result
CalculatorTray Architecture
All calculators run locally in the browser. No input is stored or sent.
Hover or focus elements for details
Legend
- User
- Local in browser