Calculators

Percentage Calculator

Calculate discounts, markups, percentage shifts and ratios instantly.

Rule of Three Calculator

Solve direct and inverse proportions with step-by-step clarity.

BMI Calculator

Evaluate Body Mass Index with official WHO classifications, ideal weight range and health advice.

Date & Age Calculator

Count exact days, weeks, months and years between two calendar dates.

Business Days Calculator

Calculate business days (Monday to Friday) between dates, excluding weekends and custom holidays.

Time & Duration Calculator

Add durations, calculate difference between times and work shift tracking.

Simple & Compound Interest

Simulate investment returns, compound balance growth and monthly timeline.

Unit Converter

Convert length, weight, temperature, area, volume, speed and digital data storage units.

Currency Converter

Convert amounts between currencies using up-to-date real-time exchange rates.

Number Base Converter

Convert numbers between Binary, Octal, Decimal, and Hexadecimal instantly.

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice-versa.

Chmod Calculator (Linux)

Calculate octal and symbolic file permissions for Linux.