Accurate calculations for finance, engineering, lifestyle, and creative tasks. All calculators use precise formulas and separate units.
Calculate investment growth with compound interest and monthly contributions.
Calculate monthly payments, total interest, and amortization schedule.
Convert between hourly, monthly, and annual salary with accurate calculations.
Convert between different units of measurement with separate unit categories.
Calculate voltage, current, and resistance in series and parallel circuits.
Balance chemical equations and calculate molar masses.
Adjust recipe ingredients and cooking times for different serving sizes.
Calculate daily calorie needs and macronutrient requirements.
Find optimal wake times based on sleep cycles (90-minute cycles).
Check color contrast ratios for WCAG accessibility compliance.
Calculate password entropy and estimate cracking time.
Calculate Flesch-Kincaid and Gunning Fog readability scores.