Calculators

Random Number Generator

Generate random numbers online, free, within a custom range — one or many at once.

Dice Roller

Roll virtual dice online, free — choose how many dice and how many sides.

Coin Flip

Flip a virtual coin online, free — heads or tails, instantly, with a running tally.

Aspect Ratio Calculator

Calculate aspect ratio online, free — find a ratio, or resize keeping the same proportions.

Fraction Calculator

Calculate fractions online, free — add, subtract, multiply, or divide with simplified results.

Ratio Calculator

Simplify ratios and find equivalent ratios online, free.

Average Calculator

Calculate the mean, median, and mode of a set of numbers online, free.

Prime Number Calculator

Check if a number is prime, or list primes up to a limit, online, free.

Square Root Calculator

Calculate the square root and cube root of any number online, free.

Exponent Calculator

Calculate a number raised to a power online, free.

LCM & GCD Calculator

Calculate the LCM (Least Common Multiple) and GCD (Greatest Common Divisor) of numbers online, free.

Compound Interest Calculator

Calculate compound interest online, free — see your investment grow with annual, monthly, or daily compounding.

Simple Interest Calculator

Calculate simple interest online, free, on any principal amount.

SIP Calculator

Calculate SIP returns online, free — see how monthly investments grow over time.

ROI Calculator

Calculate ROI (Return on Investment) online, free.

Profit Margin Calculator

Calculate profit margin and markup percentage online, free.

Discount Calculator

Calculate discount amount and final sale price online, free.

GST / VAT Calculator

Calculate GST or VAT online, free — add or remove tax from a price.

Tip Calculator

Calculate tip amount and split the bill online, free.

World Clock

See the current time in Pakistan, UK, USA, and other major time zones online, free, updated live.

Stopwatch

Free online stopwatch with lap timing.

Countdown Timer

Free online countdown timer — set hours, minutes, and seconds, get alerted when time is up.

Days Until Date

Count down the days until any future date online, free.

Unix Timestamp Converter

Convert Unix timestamp to date, or date to Unix timestamp, online, free.

Working Days Calculator

Calculate working days between two dates online, free, excluding weekends.

Week Number Calculator

Find the ISO week number for any date online, free.

Scientific Calculator

Free online scientific calculator with trigonometry, logarithms, powers, and roots.

Percentage Calculator

Calculate percentages online, free — find what X% of a number is, or what percentage one number is of another.

Age Calculator

Calculate your exact age in years, months, and days online, free, based on your date of birth.

BMI Calculator

Calculate your Body Mass Index (BMI) online, free, from your height and weight. A general health screening indicator.

Unit Converter

Convert between units of length, weight, and temperature online, free. Fast, accurate conversions.

Date Difference Calculator

Calculate the number of days, months, or years between two dates online, free.

Loan / EMI Calculator

Calculate your loan EMI (monthly installment) online, free. Enter loan amount, interest rate, and tenure.