16 working tools
Calculators tools
Accurate calculators for finance, health, math and daily decisions.
- Percentages, ratios and averages
- Loans, interest, tax and discounts
- Health and planning estimates
16browser-based toolsNo account required
Percentage CalculatorCalculate a percentage of any number.Percentage Change CalculatorMeasure the percentage increase or decrease between values.BMI CalculatorCalculate body mass index from height and weight.BMR CalculatorEstimate daily basal metabolic rate.Loan Payment CalculatorEstimate a fixed monthly loan payment.Compound Interest CalculatorProject investment growth with compound interest.Simple Interest CalculatorCalculate simple interest and final balance.Discount CalculatorFind sale price and savings after a discount.Sales Tax CalculatorAdd or extract sales tax from a price.Tip CalculatorSplit a bill with a chosen tip percentage.Average CalculatorFind the mean, median, minimum and maximum.Ratio CalculatorSimplify a two-number ratio.Fraction CalculatorAdd, subtract, multiply or divide two fractions.Scientific CalculatorEvaluate a safe mathematical expression.GPA CalculatorCalculate weighted GPA from grades and credits.Break-even CalculatorFind the units required to cover fixed costs.
About this collection
Practical calculators tools, without the clutter.
A calculator is most useful when its assumptions are visible. This collection covers everyday maths, personal estimates and planning questions with straightforward inputs and readable results.
Use the result as a practical estimate, then check important financial, health or business decisions against the original figures and advice from a qualified professional where appropriate.
Worth checking: Results are estimates based on the values entered. Rates, fees, medical context and local rules may change the real-world answer.