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Number Calculators

Number calculators: percentages, fractions, prime numbers, Pi digits, unit converters (bits, bytes, KB, MB, GB). Free math tools online.

Download digits of Pi

Download digits of Pi from 1000 to 1 billion

Scientific Calculator with Memory & History

Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89

Prime Numbers List

List of all Prime Numbers - how many Prime numbers are between

Roman Numerals Converter

Roman numerals to decimal number conversion

Numbers to Roman Numerals

Decimal numbers to Roman numerals conversion

Decimal to Binary Converter

Decimal numbers to Binary conversion

Binary to Decimal Converter

Binary numbers to Decimal conversion

Bits to Bytes

Convert Bits to Bytes

Bytes to Bits

Convert Bytes to Bits

Bytes to Kilobytes

Convert Bytes to Kilobytes

Kilobytes to Bytes

Convert Kilobytes to Bytes

Kilobytes to Megabytes

Convert Kilobytes to Megabytes

Megabytes to Kilobytes

Convert Megabytes to Kilobytes

Megabytes to Gigabytes

Convert Megabytes to Gigabytes

Gigabytes to Megabytes

Convert Gigabytes to Megabytes

Gigabytes to Terabytes

Convert Gigabytes to Terabytes

Terabytes to Gigabytes

Convert Terabytes to Gigabytes

Decimal to hex converter

Decimal numbers to Hexadecimal conversion

Hex to Decimal

Hexadecimal numbers to Decimal conversion

Number Facts & Properties

All information about a specific number (spelling, factors, prime check, binary, hexadecimal, QR Code, Barcode and more)

Is a Number Prime

Find out whether a given number is Prime or not

Long Division Calculator

Step-by-step long division with detailed explanation

Fraction to Percent

What percentage one number is of another? Convert fraction into a percentage

Percent of Number

Calculate percent of a number

Percent off of a Number

Calculate the discounted price

Percent More than a Number

Calculate percentage increase

Percentage Difference Calculator

Calculate percentage difference between two numbers

Decimal to Percent Converter

Convert Decimals to Percentages

Percent to Decimal Converter

Convert Percents to Decimal

Percent to Fraction Converter

Convert Percents to Fraction

Percent to Probability Converter

Convert Percents to "1 in X" Probability Chance

Greatest Common Factor

Find the Greatest Common Factor (GCF) of two numbers

Least Common Multiple

Find the Least Common Multiple (LCM) of two numbers

Prime Factorization

Prime Factorization Calculator

Factors of a Number

List all Factors and Factor Pairs of a Number

Square Root Calculator

Calculate the square root of any number

Fraction to Decimal Converter

Convert Fraction to Decimal

Fraction Simplifier Calculator

Simplify Fraction to its Lowest Terms

Fraction to Mixed Number Converter

Convert an Improper Fraction to a Mixed Number

Fraction Comparison Calculator

Compare two fractions and find out which is larger

Decimal to Fraction Converter

Convert Decimal to Fraction

Pi Digit Explorer

Discover any digit of pi

Pi Sequence Finder

Discover Your Numbers in Pi - Phone Numbers, Birthdays etc...

First Digits of Pi

Pi up to a specified number of digits

Last Results

Factors of 320.75 as a fraction — decimal to fraction conversionSequence 67 in Pi — Found 101 TimesWhat is 3/8 as a percent?Factors of 25What is 26/30 as a percent?0.375 as a fraction — decimal to fraction conversionWhat is 1/3 as a percent?What is 10 percent of 100?What is 17/20 as a percent?0.8 as a fraction — decimal to fraction conversionFactors of 48What is 2/3 as a percent?5 in binary0.2% as a 1 in X probability0.01% as a 1 in X probabilityFactors of 63What is 1/6 as a percent?What is 5/6 as a percent?Number 2500000 FactsWhat is 5/8 as a percent?What is Roman Numeral XXXVI as a DecimalList of first 500 digits of PiFactors of 50What is 20/40 as a percent?What is 5/7 as a percent?What is 20 percent of 5000?What is 5 percent of 20000?8 in binaryFactors of 56What is Roman Numeral XXXI as a Decimal10 in binaryWhat is 12/15 as a percent?What is 6 percent of 1000?4.5 as a fraction — decimal to fraction conversion0.1 as a fraction — decimal to fraction conversionWhat is 10 percent of 1000?What is 3/5 as a percent?9.3 as a fraction — decimal to fraction conversion0.05% as a 1 in X probability3/8 as a decimalWhat is 3 percent of 25000?Factors of 423% as a 1 in X probabilityWhat is 1 percent of 500000?0.3 as a fraction — decimal to fraction conversionWhat is 22/25 as a percent?What is 20 percent of 500?6.3 as a fraction — decimal to fraction conversionWhat is 20 percent of 50000?List of first 50 digits of PiWhat is 13 percent of 100?List of first 1,000,000 digits of PiWhat is 20% off 100?List of first 100,000,000 digits of PiWhat is 30 percent of 4000?