CALCULATORS
Calculators
Free calculators for percentages, money, dates, statistics, health estimates and everyday maths.
COMMON TASKS
- Percentages, prices and finance
- Dates, time and everyday maths
- Statistics and health estimates
Percentage CalculatorFind a percentage, percentage change or original value.Age CalculatorCalculate exact age from a date of birth.Discount CalculatorCalculate sale price, original price, discount rate and savings.Average CalculatorFind mean, median, sum, count, minimum and maximum.Tip CalculatorCalculate a tip, total bill and split per person.BMI CalculatorEstimate body mass index from height and weight.Date Difference CalculatorCount calendar, business and weekend days between two dates.Time Duration CalculatorFind elapsed hours and minutes between two times.Fraction CalculatorAdd, subtract, multiply or divide fractions.Ratio CalculatorSimplify a ratio and view its decimal value.Loan CalculatorEstimate monthly payments, total cost and interest.Compound Interest CalculatorProject savings growth with monthly contributions.Simple Interest CalculatorCalculate interest without compounding.Sales Tax CalculatorAdd sales tax to a price or extract it from a total.VAT CalculatorAdd VAT or extract VAT from a gross amount.Profit Margin CalculatorCalculate profit and margin from cost and revenue.Markup CalculatorCalculate markup from cost and selling price.Speed CalculatorCalculate speed, distance or time with common units.Pace CalculatorCalculate running pace from time and distance.Fuel Cost CalculatorEstimate fuel used and trip cost.Mortgage CalculatorEstimate monthly mortgage payments and total interest.Savings Goal CalculatorEstimate the monthly saving needed to reach a goal.Salary to Hourly CalculatorConvert annual salary to hourly, daily and monthly pay.Hourly to Salary CalculatorConvert hourly pay to weekly, monthly and annual income.Overtime Pay CalculatorCalculate regular, overtime and total gross pay.Break-even CalculatorFind the sales volume needed to cover fixed costs.ROI CalculatorCalculate return on investment and net gain.CAGR CalculatorCalculate compound annual growth rate.Percentage Difference CalculatorCompare two values without choosing an original value.Grade CalculatorCalculate a weighted course grade.GPA CalculatorCalculate a credit-weighted grade point average.Probability CalculatorCalculate simple event probability and odds.Combinations and Permutations CalculatorCalculate nCr combinations and nPr permutations.Standard Deviation CalculatorCalculate mean, variance and standard deviation.Median CalculatorFind the median and sorted number list.Mode CalculatorFind the most frequent number or numbers.GCD CalculatorFind the greatest common divisor of two integers.LCM CalculatorFind the least common multiple of two integers.Prime Number CheckerCheck whether a whole number is prime.Square Root CalculatorCalculate square roots and identify perfect squares.Scientific Notation ConverterConvert ordinary numbers to scientific notation and back.Body Fat CalculatorEstimate adult body fat percentage from measurements.Ideal Weight CalculatorView several adult ideal-weight formula estimates.Calorie CalculatorEstimate daily calories from age, size and activity.Water Intake CalculatorEstimate a simple daily water target from body weight.