All Calculators

Designed for everyday use, our intuitive calculators turn numbers into powerful tools for insight and discovery. Whether simplifying tasks, revealing patterns, or uncovering meaningful data, let these practical solutions become an essential part of your daily life.

BMI Calculator

The Body Mass Index (BMI) calculator evaluates the BMI for both children and adults, categorizing the results based on standards established by WHO and CDC. It offers an easy-to-use tool for determining body weight status relative to height.

Calorie Calculator

This calorie calculator helps you determine your daily calorie needs to maintain your weight, lose it, or gain it, while also providing insights into how different types of calories impact your body.

Ideal Weight Calculator

This free ideal weight calculator uses renowned equations to estimate a healthy weight range tailored to your age, gender, and height.

TDEE Calculator

The TDEE calculator accurately estimates the calories you burn each day by factoring in your BMR along with various personal attributes.

Loan Calculator

A free loan calculator simplifies planning your repayments by calculating the monthly payment, total interest, and amortization schedule for various types of loans, including conventional, deferred payment loans, and bonds.

EMI Calculator

Use an EMI calculator to manage loans efficiently. Determine your EMIs, total interest, and evaluate affordability to make smart financial choices and save money.

Compound Interest Calculator

A compound interest calculator that applies the formula (A = P(1 + r/n)nt) to illustrate how compound interest influences money growth over time.

Retirement Calculator

A retirement savings calculator that applies the formula FV = PV (1 + R)ⁿ to assist users in planning for retirement and estimating their retirement income.

Percentage Calculator Tool

This calculator simplifies percentages by finding a percent of a number, calculating percentage changes, and determining quantities from given percentages.

Velocity Calculator Tool

This free online velocity calculator determines the final velocity (v), initial velocity (u), acceleration (a), or time (t) using the velocity formula. You can calculate the final velocity (v) with the equation v = u + at.

Number Generator Tool

The random number generator creates a set of numbers based on user preferences like range, duplicates, and sorting.

Random Number Generator Tool

Generate truly random numbers with our versatile random number generator. Whether you need a single number or a set of unique or duplicate values, our tool offers precision, flexibility, and customizable options for gaming, simulations, security, and more.

Annealing Temperature Calculator

Instantly calculate the optimal annealing temperature for PCR and other molecular biology experiments with our accurate and easy-to-use Annealing Temperature Calculator.

Atom Calculator

Calculate atomic number, mass number, protons, neutrons, or electrons with ease using our Atom Calculator — a fast and accurate tool for exploring atomic structure in chemistry and physics.

Age Calculator

An online age calculator tool computes age by measuring the passage of time, taking into account years, days, hours, minutes, and seconds.

Date Calculator

Accurately calculate the difference between dates or add and subtract days with ease using our free date calculator. Customize calculations with options to include or exclude weekends and holidays for precise planning.

Days Calculator

Easily calculate the number of days between any two dates with our free days calculator. Customize your results by including or excluding weekends and holidays for accurate planning and scheduling.

DEC

Time to Decimal Calculator

Time to decimal calculator can convert the time format from hh:mm:ss to decimal hours, minutes, and seconds. Learn to convert hours to decimal form.

Unit Converter

This free online tool helps you quickly convert units for length, temperature, area, volume, weight, time and many more.

Fuel Cost Calculator

Calculate fuel expenses effortlessly with this free fuel cost calculator, which estimates trip costs based on fuel efficiency, distance, and fuel price across multiple measurement units.

h r V

Cylinder Volume Calculator

Calculate the volume and surface area of a cylinder effortlessly with this versatile cylinder volume calculator. Instantly find lateral, base, and top surface areas for accurate measurements.

m ft

Meters to Feet Calculator

Effortlessly convert meters to feet and inches with our precise meters to feet calculator. Customize decimal rounding or display results in fractional inches for accurate measurements.

GPA Calculator

Calculate your GPA effortlessly with this GPA calculator, which supports both letter and numerical grades while factoring in course credits. Get instant results and a detailed GPA report to track your academic performance.

Concrete Calculator

Use our free concrete calculator to accurately estimate concrete volume, cost, and materials for slabs, footings, stairs, patios, and foundations—perfect for DIY homeowners and contractors planning construction projects.

Dice Roller

Experience instant and fair virtual dice rolls with our online dice roller—perfect for games, teaching, decision-making, and more, powered by reliable random number generation.

F&I

Feet and Inches Calculator

Quickly add, subtract, multiply, or divide feet and inches with this easy-to-use measurement calculator.

Grade Calculator

Easily calculate your current and final grades with our smart grade calculator — perfect for students tracking academic performance and planning for success.

Height Calculator

This free height calculator predicts a child's future adult height using scientific growth models, while also allowing easy conversion between feet, inches, and centimeters.

Height Converter

Quickly convert height between feet, inches, and centimeters with our easy-to-use height converter tool.

Roofing Calculator

Quickly estimate roof area, materials, and costs with our free roofing calculator. Ideal for homeowners and contractors planning shingle needs, labor, and project timelines.

Work Hours Calculator

Easily track and calculate total work hours with our user-friendly Work Hours Calculator—featuring options for break deductions, time rounding, and military time support to ensure accurate weekly hour tracking.

Hours Calculator

Easily calculate total hours worked with this free online hour calculator—perfect for tracking employee time, managing shifts, and simplifying payroll calculations.

Hours and Minutes Calculator

Quickly calculate hours and minutes with this easy-to-use online time calculator—perfect for tracking work hours, time duration, or adding up daily schedules in just a few clicks.

Time Calculator

Easily calculate time differences or totals with this free online time calculator. Add or subtract days, hours, minutes, and seconds, and explore useful insights into time measurement and conversions.

Time Duration Calculator

Easily calculate the time between two dates or clock times with our accurate time duration calculator — ideal for tracking hours worked, managing schedules, and planning projects efficiently.

Anniversary Calculator

Easily calculate your relationship or wedding anniversary with our accurate anniversary calculator—track how long you've been together, see upcoming milestones, and discover traditional gift ideas for each year of celebration.

Age Difference Calculator

Easily calculate the age gap between two individuals with this accurate age difference calculator. Discover helpful insights on age gaps in relationships and how to interpret age comparisons effectively.

Stopwatch

Track time accurately for workouts, tasks, events, and more with our user-friendly online stopwatch—perfect for precision, productivity, and performance.

8 Hour Shift Calculator

Easily calculate 8-hour work shifts with our free 8 Hour Shift Calculator. Plan employee schedules, manage work hours, and optimize daily shift timing in seconds.

BC → AD

BC to AD Calculator

Easily calculate the year difference between BC and AD with our BC to AD Calculator. Learn the meanings of BC, AD, BCE, and CE, and find out how many years ago any historical date occurred.

Baby Age Calculator

Discover how to calculate your baby's age by months and track how old they’ll be at future dates with our easy-to-use Baby Age Calculator — ideal for planning milestones and growth tracking.

Add Timer Calculator

Easily add hours, minutes, and seconds with this smart Add Timer Calculator—perfect for tracking work hours, combining multiple time durations, and simplifying time management tasks.