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Browse every completed calculator, converter, game and information page available on KALQ.
Calculator collections
All CalculatorsBrowse every completed KALQ calculator and tool.Finance CalculatorsSavings, compound growth, retirement, credit, APR, salary, payroll and tipping tools.Health CalculatorsBMI, ideal-weight and pregnancy timeline tools.Date & Time CalculatorsAge, birthday milestones and calendar date differences.Math CalculatorsPercentages and polynomial roots.ConvertersNumber forms, measurement units and currencies.Education CalculatorsGPA and chemistry reference tools.GamesMental arithmetic and Soroban practice.
Finance
Retirement Savings CalculatorProject retirement savings, compare a spending goal and estimate required contributions.Salary Increase CalculatorCalculate a new gross salary and compare the increase across common pay periods.Salary Payroll CalculatorEstimate gross pay, deductions, net pay, employer cost and payroll projections.Savings CalculatorEstimate how current savings and recurring deposits may grow with a stated APY.Compound Interest CalculatorProject compound growth from a starting balance and regular monthly contributions.Credit Card Payoff CalculatorEstimate a credit card debt-free date, total interest, total repayment and savings from an extra monthly payment.APR CalculatorEstimate a fixed-rate loan APR, monthly payment, fee impact and total borrowing cost.Tip CalculatorCalculate a tip, final bill and equal amount per person.
Mathematics
Percentage CalculatorSolve common percentage relationships with formulas, steps and a printable report.Percentage Conversion CalculatorConvert fractions, decimals, percentages and ratios in five focused modes.Unit ConverterConvert 75 everyday, engineering, digital, electrical, thermal, chemistry and radiation measurements.Currency Converter & Comparison CalculatorConvert currencies with a disclosed benchmark rate and compare provider rates, fees and final amounts received.Polynomial Root Finder CalculatorFind real and complex polynomial roots with steps, a graph and verification.
Health
Age CalculatorCalculate exact age, birthday progress, upcoming milestones and a detailed printable profile.Date Difference CalculatorCalculate the exact calendar distance between two dates in years, months, weeks and days with holiday analysis, a visual timeline and a printable report.BMI CalculatorCalculate body mass index with age-appropriate interpretation for adults, children and teenagers.Ideal Weight CalculatorCompare established height-based reference formulas and a BMI-based healthy-weight range.Pregnancy Due Date CalculatorEstimate a due date, pregnancy week, trimester and key timeline milestones.
Education
Converters
Games
Legal and information pages
About KALQRead the KALQ about kalq page.ContactRead the KALQ contact page.Privacy PolicyRead the KALQ privacy policy page.Terms of UseRead the KALQ terms of use page.DisclaimerRead the KALQ disclaimer page.Cookie PolicyRead the KALQ cookie policy page.Calculator MethodologyRead the KALQ calculator methodology page.Frequently Asked QuestionsRead the KALQ frequently asked questions page.