CLEARFUNDA CALCULATORS

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Simple tools for everyday questions, money, school and life. No confusing menus. No account needed.

Popular searches: PercentageAgeLoanBMI

✓ Easy to use   ✓ Works on mobile   ✓ Clear explanations

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General, Date & TimeAges, dates, everyday numbers and time planning.Finance & SavingsLoans, interest, savings, budgeting and future planning.Health & FitnessUseful health and activity estimators.Math & StatisticsEquations, percentages, statistics and geometry.Science & EngineeringPractical science and engineering formulas.Construction & HomeMaterials, paint, flooring and home projects.Business & E-commerceCosts, margins, growth and business planning.Education & StudentsGrades, scores and study calculations.Technology & DigitalData, networks, screens and digital tools.Cooking, Travel & AutomotiveTrips, food quantities and everyday travel costs.Country Tax & FinanceLocal tax, salary, pensions and housing rules.

Categories show our expansion roadmap. Calculator counts only reflect published, working tools.

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Popular calculators

Quick access to our most useful working tools.

Percentage CalculatorFind a percentage of any number. Type a percentage and a number to get an instant result.Age CalculatorEnter a birth date and an as-of date for a calendar-accurate age.Compound Interest CalculatorSee how your starting balance and regular monthly savings may grow over time.Loan Payment CalculatorUnderstand a fixed-rate loan payment before borrowing.BMI CalculatorGet your body mass index using kilograms and centimetres.Discount CalculatorSee exactly how much you save and what you pay after a percentage discount.Date Difference CalculatorPick two dates to find the number of days between them.Grade Percentage CalculatorEnter marks earned and total marks to find your score percentage.
LOCAL GUIDES

Calculators by country

Explore local VAT/GST and financial estimate tools across ten countries.

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United StatesIndiaUnited KingdomCanadaAustraliaGermanyFranceChinaSouth AfricaUnited Arab Emirates

Each country offers consumption-tax tools plus financial planning estimates. Statutory personal income-tax calculations are not yet included.

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Answers you can understand

Every working calculator puts the calculation first, with large form controls, readable results, formulas, worked examples and frequently asked questions. Our guides explain assumptions and limitations rather than hiding them.

Made for all ages

We use clear labels and simple language so that young learners, adults and older visitors can use the tools comfortably on mobile, tablet or desktop.

Accuracy comes before quantity

We are expanding toward a larger calculator library, but only tested, functioning calculators are counted as available. Tax tools will identify the relevant country and tax year and cite official rules.

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