Calculators
Browse free, browser-based Calculators. Use them instantly with no account.
Age Calculator
Calculate age in complete years, months, and days between two dates.
CalculatorsAspect Ratio Calculator
Calculate proportional image and video dimensions.
CalculatorsBusiness Days Calculator
Count weekdays between dates with optional holiday exclusions.
CalculatorsCompound Interest Calculator
Estimate investment growth with regular monthly contributions.
CalculatorsCoordinate Distance Calculator
Calculate distance, midpoint, direction, and angles between 2D or 3D points.
CalculatorsDate Difference Calculator
Calculate calendar years, months, days, total days, weeks, and weekdays between two dates.
CalculatorsDiscount Calculator
Calculate savings, discounted price, and optional tax.
CalculatorsElectricity Cost Calculator
Estimate appliance energy use and electricity cost.
CalculatorsFraction Calculator
Add, subtract, multiply, or divide fractions and simplify the result.
CalculatorsGreatest Common Divisor and LCM Calculator
Find the greatest common divisor and least common multiple of several integers.
CalculatorsLoan Payment Calculator
Estimate monthly loan payments, total interest, and payoff time.
CalculatorsMatrix Calculator
Add, subtract, multiply, transpose, and invert matrices with configurable dimensions.
CalculatorsPercentage Calculator
Calculate a percentage of any number instantly with a simple browser-based calculator.
CalculatorsPrime Factorization Calculator
Break a whole number into prime factors and count its divisors.
CalculatorsPrint Size and DPI Calculator
Estimate print dimensions from image pixels and target DPI.
CalculatorsRandom Number Generator
Generate configurable random integers or decimal numbers.
CalculatorsRatio Calculator
Simplify ratios and calculate equivalent proportional values.
CalculatorsRunning Pace Calculator
Calculate pace per kilometer, pace per mile, and average speed.
CalculatorsSales Tax Calculator
Add sales tax to a price or extract tax from an inclusive price.
CalculatorsScreen PPI Calculator
Calculate display pixel density, pixel pitch, and physical dimensions.
CalculatorsStatistics Calculator
Calculate count, sum, mean, median, mode, range, and standard deviation.
CalculatorsTemperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin.
CalculatorsTip Calculator
Calculate a tip, total bill, and per-person amount.
CalculatorsUnit Converter
Convert common length, weight, and volume units with one flexible calculator.