Calculator: All-in-One Tools

Calculator & Unit Converter is an all-in-one calculation app that combines a powerful scientific calculator with 19 practical tools for everyday life — from converting units and currencies to planning loans and savings. CALCULATOR • Basic and scientific keypad: trigonometry, logarithm, power, root, factorial • Real-time result preview while you type • Edit your expression at any position with full cursor support • Undo your recent steps, copy expression or result with one tap • Calculation history with notes, lock to protect important records • Degree / Radian angle modes CONVERTERS • Unit Converter: length, weight, area, volume, temperature, speed and more • Currency Converter: 150+ currencies with up-to-date exchange rates • Size Converter: clothing and shoe sizes across regions • Hexadecimal: convert between decimal, binary, octal and hexadecimal • World Time: compare time across cities and time zones DATE & TIME • Date Difference and Time Difference calculators • Age Calculator: exact age in years, months and days FINANCE • Loan Calculator with full amortization schedule • Savings Calculator with compound interest • Sales Tax, Discount, Tip and Unit Price comparison • Percentage and Fuel Cost calculators HEALTH & STUDY • Health Calculator: BMI and daily calorie estimates • Ovulation Calculator with period calendar and gentle reminders • GPA Calculator for your courses and credits PERSONALIZATION • 50+ color themes: light, dark and seasonal styles • Custom background from your photo gallery • Adjustable number format and decimal digits • Available in 60 languages MORE • History is saved per tool so you can revisit past results • Mark your favorite tools for quick access • Works offline — only currency rates need an internet connection • Built-in user guide for every tool Note: The Ovulation Calculator provides estimates for reference only. It is not a medical device and should not be used as a contraception method or a substitute for professional medical advice. We'd love to hear your feedback. If you have questions or suggestions, contact us at [email protected]

- New tool: Proportion — enter any 3 values to find the fourth, in direct or inverse proportion. - Optimized app layout and behavior for a better user experience. - Improved performance and stability. Thank you for using our app! We are constantly working hard to improve our app and release updates regularly.