# Online Calculator

## Education

### Mathematics

- Triangle
- Area
- Volume and surface area
- Plane geometry
- Space geometry
- Inscribed and circumscribed
- Trigonometric functions (Deg)
- Trigonometric functions (Rad)
- Hyperbolic functions
- Logarithm, exponential
- Complex number
- Equation
- Progression
- Permutation and combination
- Regression
- Various probability
- Computing Pi
- Others

## Professional

### Probability Function

- Normal distribution
- Logarithmic normal distribution
- Bivariate normal distribution
- Chi-square distribution
- Student's t-distribution
- F-distribution
- Noncentral chi-square distribution
- Noncentral t-distribution
- Noncentral F-distribution
- Exponential distribution
- Uniform distribution
- Weibull distribution
- Gamma distribution
- Beta distribution
- Laplace distribution
- Cauchy distribution
- Logistic distribution
- von Mises distribution
- Pareto distribution
- Lévy distribution
- Poisson distribution
- Binomial distribution
- Negative binomial distribution
- Geometric distribution
- Hypergeometric distribution
- Studentized range distribution

### Special Function

- Gamma function
- Beta function
- Zeta function
- Bessel function
- Spherical bessel function
- Airy function
- Kelvin function
- Struve function
- Error function
- Legendre function
- Bernoulli number
- Stirling number
- Fibonacci sequence
- Double factorial
- Pochhammer function
- Brillouin function
- Activation function
- Exponential integral
- Fresnel integral
- Elliptic integral
- Elliptic function
- Orthogonal polynomial
- Hypergeometric function

## FAQ

## What's New

**Jul 16, 2021**

The new calculator is now available.

Data Transfer Speed

Data Transfer Time

**Jun 18, 2021**

The new calculator is now available.

Viscosity conversion

Torque Conversion

**Jun 11, 2021**

The new calculator is now available.

Rodeo Calorie

Rope jumping Calorie

Rowing Calorie

Yoga Calorie

**May 28, 2021**

The new calculator is now available.

12 zodiac constellations

Addition and subtraction of hours and minutes

Your age in seconds

**May 7, 2021**

The new calculator is now available.

Leaky ReLU

Leaky ReLU (chart)

**Sep 25, 2020**

The new calculator is now available.

Track and field Calorie

Rock climbing Calorie

**Sep 11, 2020**

The new calculator is now available.

Rollerblading Calorie

Softball Calorie

Boxing Calorie

**Sep 9, 2020**

The new calculator is now available.

Golf Calorie

Horseback riding Calorie

Volleyball Calorie

Football Calorie

Hockey Calorie

**May 22, 2020**

The new calculator is now available.

Modular Multiplicative Inverse

**Apr 9, 2020**

The new calculator is now available.

Infinite geometric series

**Feb 10, 2020**

The new calculators are now available.

Random Integers

Normal distribution random number

Logarithmic normal distribution random number

Gamma distribution random number

Chi-square distribution random number

Student's t-distribution random number

Day of Week (Every year)

**Jan 23, 2020**

The new calculators are now available.

Tennis Calorie

Cross country skiing Calorie

**Jan 21, 2020**

The new calculators are now available.

Basketball Calorie

Climbing Calorie

**Jan 7, 2020**

The new calculator is now available.

Matrix power

**Oct 8, 2019**

The new calculators are now available.

Lévy distribution

Lévy distribution (chart)

Lévy distribution (percentile)

**Sep 30, 2019**

We have updated our privacy notice.**Sep 4, 2019**

The new calculators are now available.

Total Daily Energy Expenditure (TDEE)

**Jul 17, 2019**

The new calculators are now available.

Volume of a equilateral triangular prism

Height of a equilateral triangular prism

Volume of a regular hexagonal prism

Height of a regular hexagonal prism

**Jul 1, 2019**

Up to 130 digits can be specified in Advanced Cal.**Jun 7, 2019**

The new calculator is now available.

Linear inequality

**Jun 4, 2019**

The new calculator is now available.

Cyclic Date

**May 30, 2019**

The new calculator is now available.

Data Transfer Rate Conversion

**Apr 19, 2019**

The new calculator is now available.

Volumetric Flow Rate Conversion

**Apr 16, 2019**

The new calculators are now available.

Ratio Conversion

Metric prefix Conversion

**Apr 8, 2019**

The new calculator is now available.

Japanese Holidays

**Jan 24, 2019**

The new calculator is now available.

Euler's method(2nd-derivative)

**Jan 22, 2019**

The new calculators are now available.

Runge-Kutta method (2nd-order,2nd-derivative)

Runge-Kutta method (4th-order,2nd-derivative)

**Jan 21, 2019**

The new calculator is now available.

Fuel Consumption Conversion

**Jan 11, 2019**

The new calculator is now available.

Projection (duration, height and distance) (chart)

**Dec 14, 2018**

The new calculator is now available.

Remainder Calculator

**Dec 13, 2018**

The new calculator is now available.

Density Conversion

**Nov 5, 2018**

The new calculators are now available.

tanh(x) function

Derivative tanh(x) function

Second Derivative tanh(x) function

tanh(x) function (chart)

**Sep 28, 2018**

The new calculator is now available.

Volume of an elliptic cylinder

**Sep 20, 2018**

The new calculators are now available.

Volume of an elliptic cone

Volume of an elliptic truncated cone

**Sep 12, 2018**

We have updated our privacy notice.**Sep 7, 2018**

The new calculators are now available.

New coordinates by 3D rotation of points

ReLU

ReLU (chart)**Aug 31, 2018**

The new calculator is now available.

How many days until ~ ?

**Aug 27, 2018**

The new calculator is now available.

Google maps area

**Jul 27, 2018**

The new calculators are now available.

Leap year checker

Leap year generator**Jul 19, 2018**

The new functions are now available on the Advanced Cal.

random_f()

random_f(a,b)

random_i(a,b)

**Jul 17, 2018**

The new calculators are now available.

Pareto distribution

Pareto distribution (chart)

Pareto distribution (percentile)

Generalized Pareto distribution

Generalized Pareto distribution (chart)

Generalized Pareto distribution (percentile)

**May 30, 2018**

The new calculators are now available.

Convert Date & Time to Unix timestamp

Convert Unix timestamp to Date & Time

**Apr 13, 2018**

The new calculators are now available.

Softsign function

Softplus function

Derivative Softsign function

Derivative Softplus function

Softsign function (chart)

Softplus function (chart)

**Mar 19, 2018**

The number of digits on the Advanced Cal can be specified up to 102 digits on a trial basis.

**Feb 13, 2018**

The new calculators are now available.

Studentized range distribution

Studentized range distribution (percentile)

**Feb 8, 2018**

We have made it easy to use formula editors.

**Jan 25, 2018**

The new calculator is now available.

Softmax function

**Jan 19, 2018**

New functions, "Summation" and "Production" (Sigma and Pi Symbol) are now available on the

Advanced Cal.

**Jan 12, 2018**

The new calculators are now available.

Sigmoid function

Derivative Sigmoid function

Second Derivative Sigmoid function

Sigmoid function (chart)

Hadamard product