Finance
Compound Interest Calculator
Project investment growth with compounding and regular contributions.
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All calculators
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All calculators
Search, filter, and sort the complete Calcora directory.
Finance
Loan Calculator
Estimate periodic loan payments, total repayment, and interest.
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Mortgage Calculator
Estimate monthly mortgage payments and optional housing costs.
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Savings Calculator
Forecast savings with recurring deposits and a fixed return.
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Salary Calculator
Convert hourly, weekly, monthly, and annual gross pay.
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ROI Calculator
Measure investment return in money and percentage terms.
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Currency Converter
Convert currencies with optional daily rates or your own rate.
Open calculatorShopping & Daily Life
Discount Calculator
Calculate savings and final price with one or two discounts.
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Profit Margin Calculator
Calculate profit, margin, and markup from cost and price.
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Retirement Calculator
Project retirement savings from age, contributions, and return.
Open calculatorAge, Date & Time
Age Calculator
Find an exact age in years, months, days, and total days.
Open calculatorAge, Date & Time
Date Difference Calculator
Count days, weeks, months, and years between two dates.
Open calculatorAge, Date & Time
Countdown Calculator
Count down days, hours, minutes, and seconds to a date.
Open calculatorAge, Date & Time
Time Duration Calculator
Calculate hours and minutes between two times, even overnight.
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Time Zone Converter
Convert a date and time between IANA time zones.
Open calculatorHealth & Fitness
BMI Calculator
Calculate adult body mass index and its standard category.
Open calculatorHealth & Fitness
Calorie Calculator
Estimate daily calorie needs using Mifflin-St Jeor.
Open calculatorHealth & Fitness
Body Fat Calculator
Estimate body fat with the U.S. Navy circumference method.
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Water Intake Calculator
Estimate a general daily fluid guideline from weight and activity.
Open calculatorHealth & Fitness
Sleep Calculator
Suggest bedtimes or wake times around approximate sleep cycles.
Open calculatorHealth & Fitness
Pregnancy Due Date Calculator
Estimate a due date from the last menstrual period.
Open calculatorHealth & Fitness
Heart Rate Calculator
Estimate maximum heart rate and exercise target ranges.
Open calculatorMathematics
Percentage Calculator
Calculate percentages, changes, and percentage differences.
Open calculatorMathematics
Scientific Calculator
Evaluate arithmetic, powers, roots, logs, and trigonometry safely.
Open calculatorMathematics
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions.
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Area Calculator
Calculate areas of squares, rectangles, triangles, circles, and trapezoids.
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Volume Calculator
Calculate volumes of cubes, prisms, cylinders, cones, and spheres.
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Quadratic Equation Calculator
Solve quadratic and linear equations, including complex roots.
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Statistics Calculator
Calculate mean, median, mode, range, and standard deviation.
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Ratio Calculator
Simplify ratios, find equivalents, and solve missing values.
Open calculatorEducation
GPA Calculator
Calculate weighted GPA from courses, grades, and credits.
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Final Grade Calculator
Find the score needed on remaining assessments.
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Attendance Calculator
Calculate attendance percentage and remaining allowed absences.
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Study Time Calculator
Turn workload and available days into a simple study schedule.
Open calculatorShopping & Daily Life
Tip Calculator
Calculate tip, total bill, and each person's share.
Open calculatorShopping & Daily Life
Sales Tax and VAT Calculator
Add tax to a net price or extract it from a gross price.
Open calculatorShopping & Daily Life
Length Converter
Convert metric and imperial length units accurately.
Open calculatorShopping & Daily Life
Weight Converter
Convert milligrams, grams, kilograms, tonnes, ounces, and pounds.
Open calculatorShopping & Daily Life
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin, including negatives.
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Fuel Cost Calculator
Estimate fuel needed and trip cost in metric or imperial units.
Open calculatorBusiness & Home
Break-Even Calculator
Find the sales volume and revenue needed to cover costs.
Open calculatorBusiness & Home
Selling Price Calculator
Set a price from cost and a target margin or markup.
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Paint Calculator
Estimate paint needed for walls, openings, and multiple coats.
Open calculatorBusiness & Home
Concrete Calculator
Estimate concrete volume for slabs, columns, and cylindrical forms.
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Electricity Cost Calculator
Estimate appliance energy use and electricity cost.
Open calculatorSpecialized Tools
Inflation Calculator
Project future prices or compare purchasing power using your rate.
Open calculatorSpecialized Tools
EV Charging Cost Calculator
Estimate charging energy and cost including efficiency losses.
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Zakat Calculator
Estimate zakat from net eligible assets and a provided nisab.
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Freelance Income Calculator
Estimate freelance gross income, expenses, and net income.
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Unit Price Calculator
Compare two products by price per unit of quantity.
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