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Date Calculators

Add or Subtract Date

Convert date units

Days Between Two Dates

Days until Date

Days until Holiday

Seconds converter

What Day of the Week is a day

How many days are in month

Add or Subtract Time


Number Calculators

Calculator Online

Prime Numbers List

Roman Numerals Converter

Numbers to Roman Numerals

Number to Binary

Binary Number Converter

Decimal to hex converter

Hex to Decimal

About a number

Is number a Prime

Fraction to Percent

Percent of Number

Greatest Common Factor

Prime Factorization

Factors of a Number

Fraction to Decimal Converter

Decimal to Fraction Converter


Temperature Converters

Celsius to Fahrenheit

Fahrenheit to Celsius


Length Calculators

Centimeters to Inches

Inches to Centimeters

Millimeters to Inches

Inches to Millimeters

Meters to Inches

Inches to Meters

Feet to Inches

Inches to Feet

Centimeters to Feet

Feet to Centimeters

Millimeters to Feet

Feet to Millimeters

Meters to Feet

Feet to Meters


Various Calculators

What is My Zodiac Sign?