Calculate percentage of a number

Add or subtract percentage from a number

Calculate percentage of a percentage

Calculate percent increase or decrease

Advanced math with trig and logarithms

Add, subtract, multiply, divide fractions

Calculate mean, median, mode and statistics

Generate random numbers or pick items

Calculate factorial (n!) of any number

Find Least Common Multiple with steps

Square root, cube root, and nth root

Calculate powers with step-by-step solutions

Find prime factors with division method

Check if a number is prime

Find Highest Common Factor with steps

Convert between Roman and Arabic numerals

Calculate area, perimeter, volume for 2D & 3D shapes

Calculate right triangle sides using a² + b² = c²

Calculate nPr and nCr with step-by-step solutions

Generate Fibonacci numbers with golden ratio

Calculate compound interest with contributions

Calculate simple interest on principal

Compare simple and compound interest

Calculate sale prices and savings

Compound annual growth rate

Calculate loan payments and amortization

Project your investment growth over time

Plan how much to save for your goals

Calculate purchasing power over time

Plan your retirement savings

Calculate debt payoff time and cost

Add or remove GST/VAT from prices

Calculate profit margins and markups

Track and calculate subscription costs

Calculate tips and split bills

Compare renting versus buying a home

Calculate SIP returns with step-up and inflation

Calculate lumpsum returns with inflation adjustment

Calculate monthly auto loan payments

Calculate exact age in years, months, days

Calculate days between two dates

Days until birthday with zodiac sign

Compare times across multiple time zones

Calculate your baby's due date

Calculate your Body Mass Index

Get your TDEE, BMR, and macros

Calculate body fat percentage

Calculate trip fuel costs and gas mileage

Estimate power costs by appliance usage

Calculate seed, mulch, fertilizer needs

Scale recipe ingredients up or down

Find your perfect ring size

Convert US, UK, EU shoe sizes

Convert length, weight, temperature, and more

Resize dimensions proportionally

Convert images between JPEG, PNG, WebP, AVIF

Test your typing speed in WPM and accuracy

Calculate area for rooms, flooring, and more