Advanced Calculation Made Simple
Jumbo Calculator offers free, easy-to-use tools for all your calculation needs—covering finance, math, academics, dates, and health tracking. Our specialized calculators deliver instant and accurate results to simplify complex tasks. Whether you’re managing budgets, solving equations, or tracking fitness goals like BMI and calories, our tools help you save time. All calculators are completely free and accessible on any device. Discover the perfect calculator for any task and make calculations effortless!
Financial Calculators
Powerful tools to help you make informed financial decisions
Percentage Calculator
Calculate percentages, increases, decreases, and differences between values.
Use CalculatorMortgage Calculator
Estimate your monthly mortgage payments with taxes, insurance and PMI.
Use CalculatorCompound Interest Calculator
Calculate how your money can grow with compound interest.
Use CalculatorMortgage Payoff Calculator
Calculate how extra payments can reduce your mortgage term.
Use CalculatorHouse Affordability Calculator
Determine how much house you can afford based on your income.
Use CalculatorDebt-to-Income Ratio Calculator
Calculate your DTI ratio to assess your financial health.
Use CalculatorAcademic Calculators
Tools to help students with their academic needs
Final Grade Calculator
Determine what score you need on your final to reach your target grade.
Use CalculatorWeighted Grade Calculator
Calculate your weighted average based on different assignment categories.
Use CalculatorCGPA to Percentage Converter
Convert your Cumulative GPA to percentage based on your institution's scale.
Use ConverterStudy Hours Calculator
Plan your study schedule based on exam dates and material coverage.
Use CalculatorAssignment Score Calculator
Calculate your assignment scores and overall impact on your grade.
Use CalculatorScholarship Eligibility Calculator
Check your eligibility for scholarships based on academic performance.
Use CalculatorGrade Improvement Calculator
Calculate how much you need to improve to reach your target grade.
Use CalculatorCredit Hour Calculator
Calculate credit hours needed to reach graduation requirements.
Use CalculatorMath Calculators
Advanced mathematical calculation tools
Scientific Calculator
Advanced calculator with trigonometric, logarithmic, and exponential functions.
Use CalculatorFraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Use CalculatorPercent Error Calculator
Calculate the percentage error between observed and true values.
Use CalculatorUtility Tools
Helpful tools for everyday tasks
Heart Rate Calculator
Calculate your target heart rate zones for optimal exercise intensity.
Use CalculatorDate & Time Calculators
Tools to help you calculate and manage dates and times
Age Calculator
Calculate exact age in years, months, and days based on birth date and current date.
Use CalculatorDate Calculator
Add or subtract days, weeks, months, or years from any date to find future or past dates.
Use CalculatorTime Calculator
Add or subtract time durations, convert between time units, and calculate time differences.
Use CalculatorHours Calculator
Calculate total hours worked, time between hours, or convert hours to other time units.
Use CalculatorCountdown Timer
Create countdowns to important events with days, hours, minutes, and seconds remaining.
Use TimerMeeting Planner
Find the best meeting time across different time zones for participants worldwide.
Use PlannerDay of the Week Calculator
Determine what day of the week a particular date falls on (past or future).
Use CalculatorBusiness Days Calculator
Calculate the number of working days between two dates, excluding weekends and holidays.
Use CalculatorLeap Year Checker
Check if a year is a leap year and learn about leap year rules and calculations.
Use CheckerTime Card Calculator
Calculate work hours, overtime and total pay from clock-in/out times.
Use CalculatorPregnancy Due Date Calculator
Estimate due date based on last menstrual period or conception date.
Use CalculatorTenure Calculator
Calculate length of service between two dates (years, months, days).
Use Calculator90 Day Calculator
Add or subtract 90 days from any date — useful for trials and deadlines.
Use CalculatorWeek Number Calculator
Find ISO week numbers for dates or get the date range for a given week number.
Use Calculator100 Day Calculator
Add or subtract 100 days from a date for planning milestones and challenges.
Use CalculatorBirthday Calculator
Calculate age, days until next birthday, and day-of-week you were born.
Use Calculator