Scientific calculator with unit, currency converter and 19 everyday tools
Calculator: All-in-One Tools — description
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 storevn.feedback@gmail.com
Latest version
Version
1.5.0
Update
Jul 15, 2026
Package ID
com.storevn.all.in.one.calculator
What's new
Jul 15, 2026
- Optimize app layout and behavior for better using experience. - Improved performance and stability. Thank you for using our app! We are constantly working hard to improve our app and releasing updates regularly.