Smart Calculator & Converter

Smart Calculator & Converter is a fast, modern calculator for everyday math, scientific calculations, unit conversions and useful financial calculations — all in one simple app.

Whether you need to calculate a quick percentage, solve a scientific expression, convert kilometers to miles, check an EMI, estimate SIP returns or review an old calculation, Smart Calculator & Converter keeps everything together.

CALCULATOR

• Basic calculator for addition, subtraction, multiplication and division
• Percentage calculations
• Decimals and negative numbers
• Parentheses and operator precedence
• Calculation expressions with instant results
• Copy and paste results
• Backspace and clear controls
• Calculation history
• Continue calculating from previous results
• Large, easy-to-use calculator buttons

SCIENTIFIC CALCULATOR

Switch to scientific mode for advanced calculations.

• sin, cos and tan
• Inverse trigonometric functions
• log and ln
• Square root
• Powers and exponents
• Factorial
• π and e
• 1/x
• Parentheses
• Absolute value
• Degree and radian modes

CALCULATOR HISTORY

Never lose an important calculation.

Your calculations can be saved locally so you can:

• Review previous calculations
• Tap a calculation to use it again
• Copy previous results
• Delete individual calculations
• Clear calculation history
• Search your calculation history
• Organize calculator and converter activity

UNIT CONVERTER

Quickly convert common units without opening another app.

• Length
• Area
• Weight and mass
• Temperature
• Time
• Speed
• Volume
• Data
• Number systems

Convert values such as kilometers to miles, kilograms to pounds, Celsius to Fahrenheit, liters to gallons and more.

CURRENCY CONVERTER

Convert currencies using updated exchange rates when available.

• INR
• USD
• EUR
• GBP
• JPY
• AUD
• CAD
• CHF
• CNY
• AED
• SGD

Exchange-rate data can be cached for use when an internet connection is unavailable.

FINANCIAL CALCULATORS

Useful tools for everyday financial planning.

EMI Calculator
Calculate monthly loan EMI, total interest and total payment.

SIP Calculator
Estimate investment value, invested amount and potential returns.

FD Calculator
Calculate estimated maturity amount and interest earned.

Percentage Calculator
Calculate percentages, percentage increase and percentage decrease.

Discount Calculator
Calculate discount amount and final price.

More financial tools can be added in future updates.

NUMBER SYSTEM CONVERTER

Convert between:

• Decimal
• Binary
• Octal
• Hexadecimal

Perfect for students, developers and anyone working with different number systems.

MODERN DESIGN

Designed with a clean Material 3 interface for a comfortable Android experience.

• Light theme
• Dark theme
• System theme
• Responsive phone and tablet layouts
• Large touch targets
• Smooth animations
• Optional haptic feedback
• Accessible interface

PRIVATE AND PRACTICAL

Normal calculations work without an internet connection.

Calculation history is stored locally on your device. Internet access is only needed for features such as updating currency exchange rates.

MADE FOR EVERYDAY CALCULATIONS

Use Smart Calculator & Converter for:

• Daily calculations
• Shopping and budgeting
• School and college math
• Scientific calculations
• Unit conversions
• Currency conversions
• Loan and EMI calculations
• SIP and investment estimates
• Percentage calculations
• Discount calculations
• Quick financial planning

One simple app for the numbers you work with every day.

Note: Financial calculator results are estimates for informational purposes and should be independently verified before making financial decisions. Currency exchange rates may change and should be checked against current rates when accuracy is important.

Recent changes:
- Fix some issue and design improve