Your Ultimate Calculator Hub

Test Grade Calculator

Calculate your test score percentage and letter grade instantly

GPA Calculator

Calculate your Grade Point Average and track your academic progress

IELTS Score Calculator

Calculate your overall IELTS band score from section scores

College GPA Calculator

Calculate your college cumulative GPA and project future academic standing

Grade Calculator

Calculate your weighted average, final grade, and what you need to pass

Semester Grade Calculator

Calculate your semester grade using weighted averages for coursework, exams, and projects

ACT Score Calculator

Calculate your ACT composite score from section scores

Body Shape Calculator

Discover your body shape type based on your measurements

Italian Suit Size Calculator

Convert your measurements to Italian suit sizes

Bra Size Calculator

Find your perfect bra size with accurate underbust and bust measurements

Belt Size Calculator

Find your perfect belt size based on waist measurement

Car Loan Calculator

Calculate your monthly car payment, total interest, and loan cost

Compound Interest Calculator

Calculate how your money grows with compound interest over time

Annuity Payout Calculator

Calculate your periodic income from an annuity investment

CTC Calculator

Calculate your take-home salary from Cost to Company (CTC) with detailed breakdown

Credit Card Payoff Calculator

Calculate how long it will take to pay off your credit card and how much interest you'll pay

CPM Calculator

Calculate Cost Per Mille (Cost Per Thousand Impressions) for your advertising campaigns

Labor Cost Calculator

Calculate total employee labor costs including wages, benefits, taxes, and overhead burden rates

Exit Rate Calculator

Calculate Exit Rate for web pages to understand where visitors leave your site

CD Calculator

Calculate Certificate of Deposit returns and compare CD rates to maximize your earnings

Gender Pay Gap Calculator

Calculate and analyze the pay difference between men and women in your organization or dataset

Inflation Calculator

Calculate how inflation affects the value of your money over time

Jensen's Alpha Calculator

Measure portfolio performance against expected returns using the Capital Asset Pricing Model (CAPM)

IRR Calculator

Calculate the Internal Rate of Return for your investments and projects

CPA Calculator

Calculate Cost Per Acquisition (Cost Per Conversion) for your marketing campaigns

Marriage Tax Calculator

Calculate how marriage affects your taxes - discover if you'll face a marriage penalty or bonus

Calories Burned Sleeping Calculator

Calculate how many calories you burn while sleeping based on your weight and sleep duration.

Army Body Fat Calculator

Calculate your body fat percentage using official U.S. Army ABCP tape test methods

Calories Burned Dancing Calculator

Calculate how many calories you burn while dancing based on dance style, duration, and body weight.

Body Fat Calculator

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

Calories Burned Rock Climbing Calculator

Calculate how many calories you burn during rock climbing, bouldering, and mountaineering activities.

Calories Burned Standing Calculator

Calculate how many calories you burn while standing based on your weight, duration, and activity type.

Ovulation Calculator

Predict your fertile window and ovulation date to maximize your chances of conception

Overweight Calculator

Check if you're overweight based on BMI and get personalized health insights

Calories Burned Yoga Calculator

Calculate how many calories you burn during different yoga practices based on style and intensity.

Pregnancy Conception Calculator

Estimate when conception occurred based on your due date or last menstrual period

Lean Body Mass Calculator

Calculate your lean body mass using validated formulas (Boer, Hume, James)

Steps to Calories Calculator

Calculate how many calories you burn based on your daily step count and personal metrics.

Calories Burned Rowing Calculator

Calculate how many calories you burn during rowing workouts on ergometers and rowing machines.

Calories Burned Calculator

Calculate how many calories you burn during various physical activities based on MET values.

Pregnancy Weight Gain Calculator

Calculate your recommended weight gain during pregnancy based on IOM guidelines

Attitude Number Calculator

Discover your Attitude Number (Sun Number) from your birth date to reveal how others perceive you

Numerology Name Calculator

Discover your Expression, Soul Urge, and Personality numbers using Pythagorean or Chaldean numerology systems

Celtic Tree Zodiac Calculator

Discover your Celtic Tree sign based on your birth date and explore its ancient meaning, personality traits, and spiritual symbolism

Personality Number Calculator

Discover your Personality Number from the consonants in your name to reveal how others perceive you

Quilt Binding Calculator

Calculate how much fabric you need for quilt binding strips

Toilet Paper Usage Calculator

Calculate how long your toilet paper supply will last and plan your purchases

Dog Years to Human Years Calculator

Convert your dog's age to human years using the scientifically accurate formula or size-based calculations

Hebrew Birthday Calculator

Convert your Gregorian birthday to the Hebrew calendar and find your Hebrew date of birth

Cat Years to Human Years Calculator

Convert your cat's age to human years using the AAHA-AAFP feline life stage guidelines

Standard Deviation Calculator

Calculate population and sample standard deviation with detailed statistics

Derivative Calculator

Calculate derivatives and find the slope of functions at any point

Convolution Calculator

Calculate the discrete convolution of two sequences with step-by-step visualization

Complex Number Calculator

Perform arithmetic operations on complex numbers with step-by-step solutions and polar form conversion

Change of Base Calculator

Convert logarithms from one base to another using the change of base formula

Goals Against Average Calculator

Calculate GAA for hockey goalies using goals allowed and minutes played

Gamma Function Calculator

Calculate the gamma function Γ(z) for real numbers with step-by-step solutions

Arc Length Calculator

Calculate the arc length, radius, or central angle of a circular arc

Average Rate of Change Calculator

Calculate the average rate of change between two points on a function

Direct Variation Calculator

Calculate the constant of variation and solve direct variation equations (y = kx)

Antilog Calculator

Calculate antilogarithms (inverse logarithms) with any base including base 10 and natural antilog

Central Limit Theorem Calculator

Calculate standard error of the mean and sampling distribution probabilities with step-by-step solutions

Calculus Calculator

Calculate derivatives, integrals, limits, and solve calculus problems step-by-step

Binomial Coefficient Calculator

Calculate C(n,k) combinations with step-by-step solutions and Pascal's Triangle visualization

Arithmetic Sequence Calculator

Calculate n-th term, sum, and generate sequence terms for arithmetic progressions

Drive Time Calculator

Calculate how long your road trip will take based on distance and average speed

Boat Gas Mileage Calculator

Calculate your boat's fuel consumption in gallons per hour (GPH) and miles per gallon based on engine horsepower and speed

Boat Travel Time Calculator

Calculate how long your boat trip will take based on distance and speed in knots or mph

0-60 MPH Calculator

Calculate vehicle acceleration time, G-force, and performance metrics

Nautical Mile Calculator

Convert between nautical miles, statute miles, and kilometers with speed and time calculations

Latitude Longitude Distance Calculator

Calculate the distance between two GPS coordinates using the Haversine formula

Fuel Cost Calculator

Calculate your trip fuel costs based on distance, fuel efficiency, and gas prices

Electricity Cost Calculator

Calculate your electricity usage and estimate your energy bills

Employee Tenure Calculator

Calculate how long employees have been with your company in years, months, and days

Day of the Week Calculator

Find out what day of the week any date falls on - past, present, or future

Resistor Calculator

Calculate resistor values from color bands and vice versa

AC to DC Power Conversion Calculator

Convert AC voltage, current, and power to DC equivalents with efficiency considerations

Electrical Power Calculator

Calculate power, current, voltage, and resistance using electrical formulas

Work Hours Calculator

Calculate total work hours, weekly summaries, and project time tracking

Teer Calculator

Analyze Shillong Teer numbers, calculate house and ending digits, and explore dream number interpretations

Time Card Calculator

Calculate work hours, overtime, and total pay from your time entries

Ohm's Law Calculator

Calculate voltage, current, resistance, and power using Ohm's Law formulas

Asphalt Calculator

Calculate the amount of asphalt needed for your paving project in tons

Age Calculator

Calculate your exact age in years, months, days, weeks, hours, minutes, and seconds

Time Duration Calculator

Calculate the exact time duration between two dates, times, or datetime values