About this App
? All-in-One Calculator – Smart, Scientific & Financial Tools in One App!
Looking for the best free calculator app for Android? Whether you're a student solving complex math problems, a business owner calculating taxes, or someone who needs quick daily calculations, All-in-One Calculator has you covered. It includes powerful tools like basic calculator, scientific calculator, GST calculator, EMI calculator, currency converter, and many more – all in one easy-to-use app!
No matter whether you want a calculator for Samsung, a calculator for Xiaomi or for other devices, our app ensures faster speed, better performance and more abundant modes as your must-have offline calculator tool.
? Calculator Tools Included:
? Simple Calculator – Easy, Fast & Reliable
The Simple Calculator is perfect for your everyday needs. It’s designed for fast and accurate basic math operations like addition, subtraction, multiplication, and division.
- Large buttons and clean UI for easy input
- Perfect for students, professionals, and daily users
- Works offline with instant results
- Optimized for simple calculator for Android, basic calculator app, and free calculator offline
? Scientific Calculator – Solve Complex Equations
Take your math to the next level with our powerful Scientific Calculator.
- Supports advanced functions: Trigonometry (sin, cos, tan), Logarithmic, Exponential, Roots, and Powers
- Use parentheses, fractions, and constants like π and e
- View and reuse up to 100 past calculations in history mode
- Best for school, college, engineering, or scientific research
? GST Calculator – Flexible & Accurate Tax Calculation
Make tax calculation effortless with our professional GST Calculator.
- Calculate GST with options for inclusive and exclusive GST
- Easily change and set your own custom GST rate (3%, 5%, 12%, 18%, 28% – or any value)
- Instantly calculate CGST, SGST, and IGST
- Ideal for business owners, shopkeepers, and finance professionals
? Financial & Business Calculators:
✅ EMI Calculator – Plan your monthly EMIs for all types of loans
✅ SIP Calculator – Estimate your mutual fund returns
✅ FD Calculator – Calculate interest and maturity value
✅ RD Calculator – Plan your recurring deposits with precision
✅ Loan Eligibility Calculator – Know how much you’re eligible to borrow
✅ Compare Loan Calculator – Compare two loans side-by-side for smart decisions
? Smart Converter Tools:
? Currency Converter – Convert 135+ currencies with live exchange rates
? Unit Converter – Length, weight, temperature, volume & more
?️ Discount Calculator – Get final price after discount instantly
? Percentage Calculator – Calculate % increase, decrease, ratios, and more
? Extra Smart Features:
? Calculator History – Review, copy, or reuse previous calculations
? Save Results – Store important calculations and GPA scores
? GPA Calculator – Track your academic performance with GPA tracking
? Offline Support – Use major functions without internet
? Customizable Layout – Choose your preferred look and feel
? Works on all Android devices – Samsung, Xiaomi, OnePlus, Vivo, Realme, and more
? Why Choose This Calculator App?
✔️ Combines 15+ calculators and converters in one app
✔️ Lightweight, fast, and secure with no extra permissions
✔️ Great for school, college, business, shopping, and banking
✔️ No need for multiple apps – your complete calculator toolkit is here!
✔️ Perfect for those searching for:
? Download All-in-One Calculator today – the smartest way to calculate, convert, and solve math on your Android phone!
