Free Online Calculator & Tools

Fast, accurate, and mobile-friendly tools for everyday calculations. No registration required, completely free to use.

Popular Tools

Basic Calculator

Scientific calculator with memory functions and history

Random Number Generator

Generate random numbers for games, lottery, or any purpose

BMI Calculator

Calculate your Body Mass Index quickly and easily

Word Counter

Count words, characters, sentences and analyze your text

BMR & TDEE Calculator

Calculate your daily calorie needs for weight goals

Body Fat Calculator

Calculate body fat percentage using Navy method and BMI

TDEE Calculator

Calculate your Total Daily Energy Expenditure for fitness goals

Pregnancy Calculator

Calculate your due date and track pregnancy milestones

Ovulation Calculator

Track your fertile window and optimize conception timing

QR Code Generator

Create custom QR codes for text, URLs, WiFi, and contact info

Password Generator

Generate secure passwords with customizable options

Color Picker

Pick colors, convert formats, and generate palettes

Age Calculator

Calculate your exact age in years, months, days, and more

Tool Categories

Math Tools

Calculators for basic and advanced mathematical operations

Financial Tools

Mortgage, loan, and investment calculators

Health Tools

BMI, calorie, and fitness calculators

Text Tools

Word counters, text analyzers and writing utilities

Design Tools

Color pickers, palette generators and design utilities

Date Tools

Date calculators, age calculators and time utilities