Calc9

Determine your body type (ectomorph, mesomorph, endomorph) with our comprehensive calculator.

Basic calculator for everyday arithmetic operations. Clean interface with keyboard support.

Advanced calculator with trigonometric, logarithmic, and scientific functions. Full keyboard shortcuts.

Calculate your Body Mass Index and understand your weight status with healthy range recommendations.

Calculate your daily calorie needs based on activity level and goals for weight management.

Calculate concrete volume and weight for construction projects with waste estimation.

Calculate Certificate of Deposit earnings with compound interest and detailed breakdown.

Convert between days, weeks, months, and years. Perfect for project planning and time calculations.

Convert between storage units: bytes, KB, MB, GB, TB and binary equivalents (KiB, MiB, GiB).

Optimize your sleep schedule with science-based calculations for bedtime and wake-up times.

Convert numbers between different bases: binary, octal, decimal, hexadecimal, and custom bases.

Calculate your exact age in years, months, days, hours, minutes, and seconds with zodiac sign.

Calculate time differences, add or subtract time intervals, and work with various time formats.

Calculate date differences, add or subtract time periods, and work with business days.

Convert between real size and scale size with different ratios. Perfect for architects and model makers.

Calculate real distances from map measurements. Essential for navigation and geographic planning.

Calculate screen PPI (Pixels Per Inch) and DPI for displays, smartphones, tablets, monitors, and TVs.

Professional bandwidth calculator with unit conversion, download time estimation, website bandwidth planning, and network speed reference.

Calculate potential federal tax savings under the No Tax on Overtime provision for 2025-2028. Estimate deductions on overtime premium pay.

Calculate your time and a half overtime pay with our easy-to-use calculator. Enter your regular hourly rate and overtime hours to get instant results.

Convert your annual salary to hourly rate. Calculate your hourly wage based on your annual salary, weekly hours, and working weeks per year.

Convert your hourly wage to annual salary. Calculate your yearly earnings based on your hourly rate, weekly hours, and working weeks per year.

Calculate your overtime pay including time and a half (1.5x) and double time (2x) rates. Perfect for tracking complex overtime scenarios.

Calculate mortgage payments, interest rates, and amortization schedules. Professional home loan calculator with PMI, taxes, and payment strategies.