스마트 계산기 : 세금·대출·환율

We have gathered all the calculations you need for your daily life and work into a single app. Calculate quickly and accurately with just one smart calculator, without the need for complex formulas or switching between multiple apps.

■ General / Scientific Calculator

It supports not only basic arithmetic operations but also scientific calculations such as trigonometric functions, logarithms, and squares and square roots. Entered amounts are automatically displayed with commas for thousands, making them easy to read.

■ Unit & Exchange Rate Conversion

Provides conversion for everyday units such as length, weight, area, and temperature, as well as currency conversion based on real-time exchange rates.

■ Camera Amount Recognition (OCR)

Point your camera at overseas price tags or amounts on the screen, and it will automatically recognize them and convert them into Korean Won.

■ Value Added Tax / Customs Duty Calculation

Easily calculate supply prices and VAT, and check customs duties and VAT in advance when making direct overseas purchases.

■ Calculation of Net Annual Salary

It accurately calculates your net monthly income by reflecting the four major insurances (National Pension, Health Insurance, Long-term Care Insurance, and Employment Insurance), as well as income tax (simplified tax table method) and local income tax. Annual rates are automatically applied.

■ Loan Interest Calculation

You can compare monthly payments and total interest at a glance for both equal principal and interest repayment methods.

■ D-Day · Lunar Calendar Conversion

It calculates the days remaining until your anniversary and supports conversion between the Gregorian and Lunar calendars. You can check your D-Day instantly via the home screen widget.

■ Ad Removal Subscription

The app offers all features for free and displays ads. You can remove ads via a subscription if you wish.

Perform all your necessary calculations conveniently in one place — join the Smart Calculator.