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Calculate interest rates, monthly payments, and total loan costs

Calculate Body Mass Index, BMR/TDEE, body composition analysis and golden ratio

Base converter (Dec/Hex/Bin/Oct), combinatorics (n!, C, P) and matrix calculations (determinant, inverse, multiply) - all in one tool

Calculate income tax, social insurance and net salary across multiple countries

Generate detailed payment schedules for mortgages and car loans with principal and interest breakdown

Calculate investment growth with compound interest, FIRE planning, financial goals, regular contributions and inflation adjustment

Convert currencies with real-time exchange rates for 30+ popular currencies

Calculate present value, future value, periodic payment, interest rate and number of periods