Number Tools

Easily convert volume measurements between milliliters, liters, cups, ounces, pints, quarts, gallons and cubic meters. Accurate, instant conversions for cooking, science & more.

Calculate vote percentages for candidates in elections. Enter vote counts via JSON or simple text to get accurate percentage results against total valid votes.

Calculate and convert between wavelength, frequency, and photon energy with support for multiple units. Perfect for physics, chemistry, and engineering applications.

Free online weight and mass conversion calculator. Instantly convert between kilograms, pounds, grams, ounces, stones, and other units with our React-based tool.

Free online weight conversion tool. Instantly convert between kilograms, pounds, ounces, grams, and stones. Simple, accurate unit converter for all your weight calculation needs.

Calculate wind chill temperature using the official NOAA/NWS formula. Convert air temperature and wind speed to accurate wind chill values with unit handling.

Solve word problems automatically! Enter any math word problem and get instant solutions with step-by-step explanations for addition, subtraction, multiplication, division, percentages, and more.

Convert written number words like 'twenty-five thousand' to numeric values (25000) instantly. Free online tool for quick and accurate text-to-number conversion.

Free online physics work calculator. Compute work using force, distance, and angle inputs. Supports international number formatting with instant results and error handling.

Free online work hours calculator that parses time ranges and computes daily and total work minutes. Supports HH:MM, HH.MM, or whole-hour inputs with comma or semicolon separators.

Calculate Yu-Gi-Oh! life points by parsing text commands for damage, healing, and special effects. Perfect for duelists to track LP changes during gameplay.

Calculate nCr combinations and binomial coefficients using BigInt for extremely large values. Handles non-negative integers with input validation and displays results instantly.

Convert numbers between different number systems

Generate random numbers within a specified range

Convert between Celsius, Fahrenheit, and Kelvin

Plot mathematical equations and functions on an interactive 2D coordinate system

Convert between Unix timestamps and human-readable dates

Render LaTeX mathematical equations and formulas with live preview

Perform matrix arithmetic operations including addition, multiplication, determinant, and inverse

Perform arithmetic operations with complex numbers including addition, multiplication, and more

Perform arithmetic operations with arbitrarily large integers beyond JavaScript limits

Convert Unix timestamps to human-readable dates and vice versa

Convert roman numerals to standard Arabic numbers and back

Check if a given number is prime

Generate all primes within a range

Calculate n! for any integer

Find greatest common divisor and least common multiple

Compute remainder from integer division

Show which numbers divide evenly into a given number

Display multiplication tables for any number

Generate Fibonacci numbers up to N or max value

Roll N dice with customizable sides

Random heads/tails generator

Solve "X is what % of Y" or "Find X% of Y"

Convert between fractions, decimals, and percentages

Reduce ratios to simplest form

Compute arithmetic mean for a list of numbers

Find the middle number in a sorted dataset

Find the most frequent value(s) in a dataset

Find the difference between max and min values

Compute population/sample standard deviation

Calculate variance for a dataset

Standardize a value relative to mean and standard deviation

Compute x^y for integers and decimals

Compute square root, cube root, or n-th root

Compute logs in any base

Convert between standard numbers and scientific notation

Round numbers up, down, or to N decimal places

Round or format numbers to N significant figures

Simplify fractions to lowest terms