•   Economic Order Quantity and Total Cost eoq

  Economic Order Quantity and Total Cost

•   Facility Location Optimization - Facility to Customer facility_opt

  Facility Location Optimization - Facility to Customer

•   Calculate Inventory Level invlevel

  Calculate inventory level as stock is issued, ordered and received

•   Calculate Purchase Cost purcost

  Calculate Purchase Cost

•   Source Destination Mesh sd_mesh

  Source Destination Mesh

•   Source Transit Destination Mesh std_mesh

  Source Transit Destination Mesh

•   Transportation Optimization - Plant to Customer transport_opt

  Transportation Optimization - Plant to Customer

•   Transshipment Optimization - Plant -> Distribution Center -> Customer transship_opt

  Transshipment Optimization - Plant -> Distribution Center -> Customer

•   Broken Link Checker broken_links

  Broken Link Checker

•   Keyword Extractor keywords

  The lower the score, the more relevant the keyword is

•   Measure Page Size of Web Pages pgsize

  Measure Page Size of Web Pages

•   Measure SEO Score of a web page seo_score

  Measure SEO Score of a web page

•   Generate Word Cloud word_cloud

  Generate Word Cloud

•   Word Frequency Analysis word_freq

  Word Frequency Analysis

•   Extract all URLs from a Webpage xurls

  Extract all URLs from a Webpage

•   Estimate Brick, Cement and Sand for Brickwork brickwork

  Estimate Brick, Cement and Sand for Brickwork

•   Estimate Gravel, Cement and Sand for Plain Cement Concrete work ccwork

  Estimate Gravel, Cement and Sand for Plain Cement Concrete work

•   Estimate Cement and Sand for Plaster work plaster

  Estimate Cement and Sand for Plaster work

•   Irregular Land Area, Coordinates Known irg_land

  Irregular Land Area, Coordinates Known

•   Irregular Land Area by Triangulation irg_land2

  Irregular Land Area by Triangulation

•   Irregular Land Area from Image irg_landimg

  Irregular Land Area from Image

•   Rectangular Land Area rectland

  Rectangular Land Area

Amortization Schedule Calculation

Bond Pricing

Compound Interest Rate without Periodic Payment

Compound Interest Rate Conversion

Compound Interest Rate with Periodic Payment

Finance Calculator Helper

Future Value (FV) of a Principal and Periodic Payment

Periodic Payment for a Future Cash

Interest for Periodic Balance

Modified Internal Rate of Return (IRRM)

Internal Rate of Return (IRR)

Periodic Payment for a Loan

Number of Periodic Payments

Net Present Value (NPV) of Future Cashflows

Portfolio Optimization

Periodic Payment

Project Ranking based on Cashflows

Present Value (PV) of a Future Cash and Periodic Payment

•   Butterfly Curve butterfly

  Plot the parametric equations: x=sin(t)*(exp(cos(t))-2*cos(4*t)-(sin(t/12))**5) and y=cos(t)*(exp(cos(t))-2*cos(4*t)-(sin(t/12))**5) for 0<=t<=12*pi

•   Hypotrochoid Curve 1 hypo1

  Plot the parametric equations: x=(R-r)*cos(t)+d*cos((R-r)*t/r) and y=(R-r)*sin(t)-d*sin((R-r)*t/r) for R=6, r=4 and d=1

•   Hypotrochoid Curve 2 hypo2

  Plot the parametric equations: x=(R-r)*cos(t)+d*cos((R-r)*t/r) and y=(R-r)*sin(t)-d*sin((R-r)*t/r) for R=7, r=4 and d=1

•   Hypotrochoid Curve 3 hypo3

  Plot the parametric equations: x=(R-r)*cos(t)+d*cos((R-r)*t/r) and y=(R-r)*sin(t)-d*sin((R-r)*t/r) for R=8, r=3 and d=2

•   Hypotrochoid Curve 4 hypo4

  Plot the parametric equations: x=(R-r)*cos(t)+d*cos((R-r)*t/r) and y=(R-r)*sin(t)-d*sin((R-r)*t/r) for R=7, r=4 and d=2

•   Hypotrochoid Curve 5 hypo5

  Plot the parametric equations: x=(R-r)*cos(t)+d*cos((R-r)*t/r) and y=(R-r)*sin(t)-d*sin((R-r)*t/r) for R=15, r=14 and d=1

•   Lissajous Curve lissa

  Plot the parametric equations: x=a cos(3t) and y=b sin(2t)

•   Spiral Curve spiral

  Spiral Curve

Generate ASCII art from an image

Calculates the Steps to reach Kaprekar's constant (6174)

Calculate Profile of an Integer Number

•   Area Chart area_chart

  Area Chart

•   Simple Bar Chart bar_chart

  Simple Bar Chart

•   Simple Box Chart box_chart

  Simple Box Chart

•   Bubble Chart bubble_chart

  Bubble Chart

•   Chord Diagram chord_diagram

  Chord Diagram

•   3D Contour Chart contour3d_chart

  3D Contour Chart

•   Dendrogram Chart dendrogram_chart

  Dendrogram Chart

•   Error Bar Chart errorbar_chart

  Error Bar Chart

•   Plot Multiple Equations fx2

  Plot Multiple Equations

•   Gantt Chart gantt_chart

  Gantt Chart

•   Simple Heatmap Chart heatmap_chart

  Simple Heatmap Chart

•   Simple Histogram histogram

  Simple Histogram

•   Simple Double Line Chart line2_chart

  Simple Double Line Chart

•   3D Line Chart line3d_chart

  3D Line Chart

•   Simple Line Chart line_chart

  Simple Line Chart

•   Simple Network Diagram or 2D Mesh mesh

  Simple Network Diagram or 2D Mesh

•   3D Mesh Plot mesh3d_chart

  3D Mesh Plot

•   Parametric Equation pareq

  Parametric Equation

•   Simple Pareto Chart pareto_chart

  Simple Pareto Chart

•   Simple Pie Chart based on Tabular Data pie2_chart

  Simple Pie Chart based on Tabular Data

•   Simple Pie Chart pie_chart

  Simple Pie Chart

•   Polar Chart polar_chart

  Polar Chart

•   QQ Plot qqplot_chart

  QQ Plot

•   Quadrant Chart quadrant_chart

  Quadrant Chart

•   Simple Radar Chart radar_chart

  Simple Radar Chart

•   Sankey Diagram sankey_chart

  Sankey Diagram

•   3D Scatter Chart scatter3d_chart

  3D Scatter Chart

•   Simple Scatter Chart scatter_chart

  Simple Scatter Chart

•   Simple Stack Chart stack_chart

  Simple Stack Chart

•   Streamgraph streamgraph

  Streamgraph

•   3D Surface Chart surface3d_chart

  3D Surface Chart

•   3D Surface Chart with Error surface3d_error_chart

  3D Surface Chart with Error

•   3D Surface Contour Chart surface_contour3d_chart

  3D Surface Contour Chart

•   Simple Violin Chart violin_chart

  Simple Violin Chart

•   Waterfall Chart waterfall_chart

  Waterfall Chart

•   CSV Editor csv_editor

  CSV Editor

•   CSV Reader csv_reader

  CSV Reader

•   File Reader file_reader

  File Reader

•   HTML Reader html_reader

  HTML Reader

•   Mark Down File Reader md_reader

  Mark Down File Reader

•   Show a Geographic Location geo_location

  Show a Geographic Location

•   Distance between Two Locations on Earth map_distance

  Distance between Two Locations on Earth

•   Show Geographic Region map_region

  Show Geographic Region

•   List to String list2string

  List to String

•   String to List string2list

  String to List

•   English Synonym of an Word synonym

  English Synonym of an Word

•   Text Formatting textcase

  Text Formatting

•   User Memory mem

  User Memory

•   Create My Calculator mycal

  Create My Calculator

•   Read My Calculator cache mytree

  Read My Calculator cache

•   Process Information pinfo

  Process Information

•   User Preferences pref

  User Preferences

•   Share by Email share_by_email

  Share by Email

•   Your Temporary Data temp

  Your Temporary Data

•   Output Collection collect

  Output Collection

•   Calculate Cost cost

  Calculate Cost

•   Calculate y=f(x) fx

  Calculate y=f(x)

•   Quantities within a Given Range and Increment qrange

  Quantities within a Given Range and Increment

•   Schedule of Prices rates

  Schedule of Prices

•   Redo Calculation redo

  Repeat calculation by changing value of a variable

•   Search Catalog search

  Search Catalog

•   Calculate Trans trans

  Calculate Trans

•   Values within a Given Range and Step vrange

  Values within a Given Range and Step

•   Function Execution Time xtime

  Function Execution Time

Convert Date Time Around the World

Show Code

Calculate Color Profile

Simple Unit Converter

Simple Unit Converter (old version)

Simple Currency Converter

Exchange Currency

Evaluate arbitrary expressions and functions

Explain the Calculator function

Linear Interpolation

Function Meta

Calculate Age from Date of Birth

Body Mass Index (BMI) is a person's weight in kilograms divided by the square of height in meters. A high BMI can be an indicator of high body fatness. BMI can be used to screen for weight categories that may lead to health problems but it is not diagnostic of the body fatness or health of an individual.

Calculate Basal Metabolic Rate (BMR) using the Harris-Benedict equation

Body Fat from Skinfold Measurements

Body Fat from Weight and Height

Calories of energy a person needs everyday

Calculate Creatinine Clearance

Calculate Crcl0

Heart Condition Assessment

Target Heart Rate

Water Intake Calculator

Zung Self-Rating Depression Calculator

Convert Image to Grayscale or Black & White

Image Reader

Remove Background from an Image

Resize an Image

Rotate an Image

Upscale Image to Higher Resolution

•   Calculate Area, Circumference, Diameter and Radius of a Circle circle

  Calculate Area, Circumference, Diameter and Radius of a Circle

•   Calculate Area of a Quadrilateral quadlat

  Calculate Area of a Quadrilateral

•   Calculate Area of a Triangle triangle

  Calculate Area of a Triangle

•   Matrix Binary Operations bmatrix

  Matrix Binary Operations

•   Matrix Unary Operations umatrix

  Matrix Unary Operations

•   Correlation and Covariance corr

  Correlation measures the length and direction of linear relationship. Covariance measures the joint variability of two data points.

•   Forecast Future Values of an Asset based on Monte Cralo Simulation monte_carlo

  Forecast Future Values of an Asset based on Monte Cralo Simulation

•   Normal Distribution Curve normal

  Plot the normal distribution equation: y=(1 / (sqrt(2 * pi) * sigma)) * exp(-0.5 * (1 / sigma * (x - mu)) ** 2)

•   Basic Statistics stat

  Calculate mathematical statistics of numeric data. Enter values and optionally weights separated by comma (,). Weights, if entered, must be of same length. At least two values are required.

•   Volatility and Drift from Historical Values volatility

  Volatility and Drift from Historical Values

Solve Linear Equations with N Unknowns

Solve Linear Equations with 2 Unknowns

Compute Permutations of a list of values

Sine of an Angle

Ingredients of Apple Pie Recipe

Estimate cost of gold jewelry

Aspect ratio is simply the ratio of the width to the height of the image.

Depth of Field (DoF) in photography refers to the range of distance within a photo that appears acceptably sharp and in focus

Calculate the equivalent focal length for different crop factor (that depends on sensor size).

Exposure is determined by the relationship between aperture, shutter speed, and ISO.

Field of view (FOV) is the maximum area of a scene that can be captured by the camera sensor. Field of View is determined by the sensor size and the focal length of the lens.

Golden and Magic Hours are the best time of day to photograph. The golden hour typically lasts about one hour after sunrise and one hour before sunset, and the magic hour is roughly one hour before sunrise and one hour after sunset.

The hyperfocal distance is the closest distance at which a lens can be focused while keeping objects at infinity acceptably sharp.

Calculate the maximum print size based on image resolution and desired DPI.

Calculate the number of megapixels of an image based on its dimensions.

Calculate the storage required for a given number of images based on their resolution and bit depth.

Calculate the required shutter speed based on focal length to avoid camera shake.

•   Coversion of Coordinates coord

  Coversion of Coordinates

•   Calculate Julian Day Number jday

  Calculate Julian Day Number

•   Calculate Moonphase on a Date moonphase

  Calculate Moonphase on a Date

•   Calculate Sunrise and Sunset Time sunrise

  Calculate Sunrise and Sunset Time

•   Periodic Element Information element

  Periodic Element Information

•   Calculate molecular mass and composition of an element molecule

  Calculate molecular mass and composition of an element

•   Einstein's Theory of Special relativity emc2

  Einstein's Theory of Special relativity

•   Compressed Gas Flow Duration gas_flow

  Compressed Gas Flow Duration

•   Gas Law - General Gas Equation gas_law

  Gas Law - General Gas Equation

•   Calculate Gravitational Force between Two Masses gravitational_force

  Calculate Gravitational Force between Two Masses

•   Calculate the Dew Point based on Temperature and Humidity dew_point

  Calculate the Dew Point based on Temperature and Humidity

•   Calculate the Heat Index based on Temperature and Humidity heat_index

  Calculate the Heat Index based on Temperature and Humidity

•   Calculate Visibility Distance using Koschmieder Law visibility

  Calculate Visibility Distance using Koschmieder Law

•   Get Weather Information of a Location weather

  Get Weather Information of a Location

•   Wind Chill Calculator wind_chill

  Wind Chill Calculator