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Calculators

Calculators

Use our accurate and reliable calculators for free.

Compound Interest Calculator

Calculate how much your investment will grow with compound interest.

Car Loan Calculator

Calculate monthly payments based on price, down payment, and interest rate.

Jeonse vs Rent Calculator

Compare opportunity cost of Jeonse deposit with monthly rent.

Fund Returns Calculator

Project future wealth with initial investment and monthly contributions.

Capital Gains Tax Calculator

Calculate property transfer tax with long-term holding deductions.

Inheritance Tax Calculator

Calculate inheritance tax with spouse and child deductions.

Net Worth Calculator

Enter assets and debts to see your net worth and growth projection.

Calorie Calculator

Calculate your daily calorie needs using the Mifflin-St Jeor equation.

Loan Prepayment Fee Calculator

Calculate the prepayment penalty for paying off your loan early.

BMI Calculator

Calculate your Body Mass Index (BMI) to check your health status.

D-Day Calculator

Calculate the days remaining until a specific date.

QR Code Generator

Convert URLs, text, WiFi info and more into QR codes.

Password Generator

Generate strong and secure random passwords.

Unit Converter

Convert length, weight, temperature, area, volume and more.

Free Online Calculator Collection

Smart Tools Hub offers a variety of free calculators for daily life and financial management. All calculators use expert-verified formulas to ensure accurate results and can be used by anyone without registration.

Finance Calculators

Compound Interest Calculator: Predict long-term investment returns and calculate doubling time with the Rule of 72.
Prepayment Fee Calculator: Calculate early loan repayment fees using fixed or sliding scale methods.

Health Calculators

Calorie Calculator: Calculate BMR and TDEE using the Mifflin-St Jeor equation.

💡All calculation results are for reference only. Please consult professionals for actual financial or health decisions.