Calculators

A hub for chronological age and birthday tools.

Calculates age from date of birth in years, months, and days.

Find your exact age and see a live countdown to your next birthday.

A quick age finder to determine how old someone is from their birth date.

Quickly estimate age by only entering the year of birth.

A hub for all our finance, investment, and loan calculators.

Estimate your monthly mortgage payment with PITI.

Estimate your monthly car payment and total loan cost.

Estimate how much life insurance coverage you really need.

Estimate how much money you need to save for retirement.

Find out how much you need to save to reach your goal.

Calculate how long it will take to pay off a loan.

A hub for retirement planning and Social Security tools.

Find your Full Retirement Age (FRA) for Social Security benefits.

A hub for all health, fitness, and scientific calculators.

Estimates body’s biological age based on health/lifestyle inputs.

Find out your body’s metabolic age based on your BMR.

Find your ideal heart rate zones for exercise (fat burn, cardio, peak).

Get daily protein, carb, and fat intake recommendations.

Calculate your Body Mass Index to assess your weight status.

Estimate your Basal Metabolic Rate (calories burned at rest).

Estimate your body fat percentage using the U.S. Navy method.

Estimate your pregnancy week, due date, and conception date.

Predict your baby's due date from LMP, conception, or IVF.

Predict your fertile window and ovulation day.

Calculates pregnancy gestational age from last menstrual period or due date.

Calculate your baby's age in weeks, months, and days.

A hub for all our mathematical and scientific calculators.

An online scientific calculator with advanced functions.

A versatile tool for all types of percentage calculations.

Calculate the volume of common 3D shapes like spheres, cubes, and cylinders.

A hub for pet age, legal estimators, and more.

Find out how old your dog is in human years based on size.

Find out how old your cat is in human years.

Estimate legal filing deadlines for common claims.

Get a simple estimate of potential child support payments.