All Tools

Calculate percentages instantly. Find percentage of a number, increase/decrease, and difference.

Convert between units of length, weight, temperature, area, volume, speed, and time.

Free online scientific calculator with trigonometry, logarithms, and advanced math functions.

Convert numbers between binary, octal, decimal, and hexadecimal bases instantly.

Calculate and solve ratios and proportions. Find missing values in A:B = C:D equations.

Calculate monthly loan payments, total interest, and view amortization schedule. Works for mortgages, car loans, and personal loans.

Calculate compound interest with regular contributions. See your investment grow with yearly breakdown and visual chart.

Calculate VAT/tax amounts. Add or remove VAT with country presets. Supports bulk calculation for multiple amounts.

Solve linear (ax + b = c) and quadratic (ax² + bx + c = 0) equations with step-by-step solutions.

Perform matrix operations: add, subtract, multiply, determinant, transpose, and inverse for 2x2 and 3x3 matrices.

Calculate statistics from a data set: mean, median, mode, range, variance, standard deviation, min, and max.

Calculate your exact age in years, months, days, hours, and minutes. Find the age between any two dates. Free online age calculator, no signup required.

Calculate your Body Mass Index (BMI) instantly. Supports metric and imperial units. Get your BMI category and healthy weight range. Free, no signup needed.

Free online Pomodoro timer with 25-minute work sessions and 5-minute breaks. Customizable intervals, sound alerts, and session tracking. No signup required.

Check current time in any city worldwide and convert between time zones instantly. Perfect for remote teams and scheduling. Free, no signup required.

Calculate the tip amount, total bill, and per-person share instantly. Supports custom tip percentages and bill splitting. Free online tip calculator.

Calculate aspect ratios from pixel dimensions, or find width/height from a ratio. Includes common presets.