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Math & Science Calculators
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Date & Time Calculators
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Work & Productivity Calculators
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Converters
Length Converter
Convert between different units of length
Weight Converter
Convert between different units of weight
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
Speed Converter
Convert between different units of speed
Volume Converter
Convert between different units of volume
Angle Converter
Convert between degrees, radians, and gradians
Energy Converter
Convert between different units of energy
Pressure Converter
Convert between different units of pressure
Data Storage Converter
Convert between bytes, KB, MB, GB, TB
Cooking Unit Converter
Convert cooking measurements and units
Fuel Economy Converter
Convert between MPG, L/100km, and other fuel units
Clothing Size Converter
Convert clothing sizes between different regions
Shoe Size Converter
Convert shoe sizes between different regions
Date & Time
Date Calculator
Calculate days between dates and add/subtract days
Age Calculator
Calculate age in years, months, and days
Days Until Calculator
Calculate days until a specific date
Countdown Timer
Set and manage countdown timers
Financial
Mortgage Calculator
Calculate mortgage payments and amortization
Compound Interest Calculator
Calculate compound interest growth
Simple Interest Calculator
Calculate simple interest
Amortization Calculator
Calculate loan amortization schedule
Credit Card Payoff Calculator
Calculate credit card payoff time
Retirement Calculator
Calculate retirement savings needs
Retirement Countdown Calculator
Calculate time until retirement
Salary Calculator
Calculate salary conversions and taxes
Discount Calculator
Calculate discounts and sale prices
Tip Calculator
Calculate tips and split bills
Health & Fitness
BMI Calculator
Calculate Body Mass Index
Body Fat Calculator
Calculate body fat percentage
Ideal Weight Calculator
Calculate your ideal weight
Calorie Intake Calculator
Calculate daily calorie needs
Calories Burned Calculator
Calculate calories burned during activities
Macronutrient Calculator
Calculate macro ratios for your diet
Protein Calculator
Calculate daily protein requirements
Water Intake Calculator
Calculate daily water intake needs
Sleep Calculator
Calculate optimal sleep and wake times
BAC Calculator
Calculate blood alcohol content
Pregnancy Calculator
Calculate pregnancy due date and milestones
Conception Calculator
Calculate conception date and fertility window
Insulin Calculator
Calculate insulin dosage requirements
Cat Age Calculator
Convert cat years to human years
Math & Science
Percentage Calculator
Calculate percentages and percentage changes
Fraction Calculator
Calculate with fractions
Binary Calculator
Calculate with binary numbers
GCD Calculator
Calculate Greatest Common Divisor
LCM Calculator
Calculate Least Common Multiple
Factor Calculator
Find factors of numbers
Root Calculator
Calculate square roots and nth roots
Rounding Calculator
Round numbers to specified decimal places
Other
Paint Calculator
Calculate paint needed for rooms
Work & Productivity
Time Card Calculator
Track work hours and calculate earnings
Commute Calculator
Analyze commute time and productivity impact
Task Duration Estimator
Estimate time needed for tasks
Work Productivity
Track and analyze work productivity

Pregnancy Due Date Calculator

Get an accurate estimate of your due date and track important pregnancy milestones

Enter Your Date

First Day of Last Period

Calculation Method

Select how you want to calculate your due date

Last Period

Standard method using your last menstrual period

Conception

Calculate from known conception date

IVF Transfer

Based on embryo transfer date

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Age Calculator

Calculate exact age and time between any two dates

Date Calculator

Calculate duration between dates and add/subtract time periods