Calculator Tools Tools

Calculate Body Mass Index.

Calculate percentages, increases, decreases.

Calculate exact age in years, months, days.

Convert numbers into English words.

Convert numbers to Roman numerals.

Check if a number is prime.

Compute n! for any positive integer.

Generate the Fibonacci sequence.

Greatest common divisor of two numbers.

Least common multiple of two numbers.

Solve ax² + bx + c = 0.

Mean, median, sum, and count of numbers.

Simplify A:B ratios automatically.

Find X% of any number instantly.

Compute what percent X is of Y.

Compute percent increase or decrease.

Compute experimental percent error.

Compute the square root of a number.

Compute the cube root of a number.

Compute base raised to an exponent.

Compute log of a number in any base.

Compute the exponential function e^x.

Calculate the mean of a list of numbers.

Calculate the median of a list of numbers.

Find the most frequent values in a list.

Calculate your basal metabolic rate (Mifflin-St Jeor).

Compute daily calorie needs from BMR.

Compute GPA from grades and credit hours.

Estimate paint litres for a wall area.

Compute the geometric mean of a list of numbers.

Compute the population variance of numbers.

Compute the standard deviation of a dataset.

Compute any percentile of a number list.

Convert numbers between any base from 2 to 36.

Compute A mod B for any two integers.

Get the absolute value of any number.

Round numbers to any decimal precision.

Convert numbers to scientific (E-notation).

Convert degrees to radians instantly.

Convert Roman numerals back to integers.

Compute the nth root of any number.

Compute log base 10 of any number.

Compute log base 2 of any number.

Compute the natural log of any number.

Compute sine, cosine, and tangent of an angle.

Compute inverse trig functions in degrees.

Compute sinh, cosh, and tanh of any value.

Compute the hypotenuse from two legs.

Compute the area of a triangle from base and height.

Compute area and circumference of a circle.

Compute the volume and surface area of a sphere.

Compute the volume of a cylinder.

Compute the volume of a cone.

Compute area and perimeter of a rectangle.

Compute the area of a trapezoid.

Compute the area of an ellipse.

Compute the area of a regular polygon.

Compute the distance between two 2D points.

Compute the distance between two 3D points.

Compute the slope of a line between two points.

Compute the midpoint between two points.

Compute the magnitude of any-dimensional vector.

Compute the dot product of two vectors.

Compute the cross product of two 3D vectors.

Compute the determinant of a 2×2 matrix.

Format numbers per any locale (1,234.56).

Add commas as thousands separators.

Reverse the digit order of any number.

Sum every digit of a number.

Count digits in a number.

Check if an integer is even or odd.

Detect the sign of any number.

Check if a number is a perfect square.

Check if a number is a perfect cube.

Check if a number is a power of two.

Convert numbers to 1st, 2nd, 3rd format.

Round any number up to the next integer.

Round any number down to the previous integer.

Sum a comma- or space-separated list of numbers.

Multiply a list of numbers together.

Find the smallest number in a list.

Find the largest number in a list.

Compute the range (max − min) of a list.

Sort numbers in ascending order.

Sort numbers in descending order.

Convert a 0–1 decimal to a percentage.

Convert a percentage to a 0–1 decimal.

Add two fractions and simplify the result.

Subtract two fractions and simplify the result.

Multiply two fractions and simplify.

Divide two fractions and simplify.

Convert any fraction to its decimal value.

Convert a decimal to its simplest fraction.

Convert a mixed number to an improper fraction.

Convert an improper fraction to a mixed number.

Estimate AdSense revenue.

Compute aspect ratio dimensions.

Estimate body-fat % (U.S. Navy).

Plain calculator: evaluate an expression.

Estimate daily calories (Mifflin).

Compound interest calculator.

Compute concrete volume.

Compute a 95% confidence interval (mean ± 1.96·SE).

Compute CPM, CPC, revenue.

Compute days between two dates.

Straight-line depreciation calculator.

Add, subtract, multiply, divide fractions.

Compute fuel cost for a trip.

Compute GCD and LCM of two numbers.

Compute weighted grade.

Compute GST inclusive/exclusive amount.

Convert hourly wage to weekly/yearly.

Investment growth calculator.

Estimate monthly lease payment.

Compute profit margin %.

Compute selling price from cost + markup %.

Compute running pace.

Compute paint litres for a wall area.

Estimate paycheck after tax.

Estimate PayPal fees on an amount.

Compute total/unit price.

Check if a number is prime.

Compute simple probability.

Evaluate scientific expressions.

Split a bill between N people.

Compute tax on an amount.

Compute tiles needed for an area.

Compute price per unit.

Show whitespace characters explicitly.