## Contents

### Calculate time

- ･Calculate elapsed time The elapsed time is calculated at the start time and the finish time.
- ･Calculate time The time after the elapsed time from the start time and the elapsed time is calculated.
- ･Calculate the date at the elapsed time The date and time is calculated from the start date and time and the elapsed time.
- ･Calculate the elapsed time at the date The elapsed time is calculated at the start date and the end date.
- ･Convert time It converts it into the day conversion, the hour conversion, the minute conversion, and second conversion form day, hour, minute, and second.
- ･Calculate daily wage Daily wage is calculated from start and end time and hourly wage.
- ･Stopwatch Time is measured with the stopwatch.
- ･Countdown(Time) The countdown is calculated at the specified time.
- ･Countdown(Specified time) Time until the specified time will count down.

### Calculate date

- ･Calculate the number of days Days are calculated at the start date and the end date.
- ･Calculate date The date after (before) specified days is calculated from the start date and the number of days.
- ･Calculate the day of the week The day of the week is calculated at the specified date.
- ･Calculate the age The age is calculated at the birthday and the date.

### Calculate calendar

- ･Christian era and japanese calendar conversion table The conversion table of the Christian era and the harmony calendar is displayed.
- ･Age Chart About the point, it is an age list every born year in specified year.
- ･Calculate entrance and graduation year The list of entrance and graduation year calculated by date of birth is displayed.
- ･Calculate the sexagenary cycle Year sexagenary cycle, the moon sexagenary cycle of one month, and the day sexagenary cycle are displayed from the specified year and month.
- ･Old calendar conversion table The conversion table of the old calendar of one month is displayed from the specified year and month.
- ･Calculate the 72 divisions of the solar year The 72 divisions of the solar year is displayed for one month from specified year.
- ･Calculate the 24 divisions of the solar year The 24 divisions of the solar year is displayed for one month from specified year.
- ･Calculate the age of the moon The age of the moon is displayed from the specified year and month.
- ･Calculate the 28 mansions of Chinese astronomy The 28 mansions of Chinese astronomy is displayed from the specified year and month.
- ･Calculate the 12 words used to mark the old calendar The 12 words used to mark the old calendar is displayed from the specified year and month.

### Calculate biorhythm

- ･Biorhythm Calculate and display the biorhythm from the date of birth.
- ･Biorhythm compatibility Biorhythm compatibility is calculated and displayed at my and other party's date of birth.

### Convert character

- ･URL encode URL is encoded with SJIS, UTF-8, and EUC-JP, etc. and the input character string is displayed.
- ･URL dencode The character string to which URL is encoded is done deciphering URL and displayed.
- ･Into character entity reference The input character string is converted into the character entity reference and it is displayed.
- ･From character entity reference The input character entity reference is converted into the character string and it is displayed.
- ･Count number of characters Input number of characters and number of bytes are counted including or not include new line and space
- ･Full-width <--> half-width The character is converted from full-width to half-width and half-width to full-width.
- ･Convert Hiragana <--> Katakana The character is converted from the Hiragana from the Katakana and the Katakana to the Hiragana.
- ･converte to uppercase <--> lowercase The character is converted from uppercase to lowercase, and lowercase to uppercase.
- ･Convert space The half-width space of the character is deleted, and half-width space is converted into the full-width space.
- ･Convert new line New line is converted into the deletion and half-width space, and it converts it into the HTML tag.

### Calculate unit

- ･Convert length The unit of the length is converted.
- ･Convert weight The unit of the weight is converted.
- ･Convert area The unit of the area is converted.
- ･Convert volume The unit of the volume is converted.
- ･Convert angle The unit of the angle is converted.
- ･Convert time The unit of the time is converted.
- ･Convert speed The unit of the speed is converted.
- ･Convert temperature The unit of the temperature is converted.
- ･Convert power The unit of the power is converted.
- ･Convert pressure The unit of the pressure is converted.
- ･Convert acceleration The unit of the acceleration is converted.
- ･Convert energy The unit of the energy is converted.

### Calculate map

- ･Calculate straight line distance A straight line distance from the departure point to the destination point is calculated.
- ･Calculate area The area of the part enclosed in the specified point on the map is calculated.

### Calculate random numbers

- ･Generate random numbers Random numbers are calculated and generated from the range and the number.
- ･Generate random numbers(Decimal) Random numbers including the decimal are calculated and generated from the range and the number.
- ･Permute it at random The order of the figure within the specified range is permuted at random.
- ･Groups it at random The figure within the specified range is grouped at random.
- ･Password generator Random password of arbitrary number of characters are generated.

### Calculate probability

- ･Probability of the dice The probability that it throws a dice and a specific number goes out is calculated.
- ･Probability of the sum of the dice It throws some dices, and the probability of the sum is calculated.
- ･Probability of a coin Probability that the specified number of times the coin toss, leave the table is calculated.
- ･Probability of drop item The acquisition probability of the drop item is calculated from the drop rate.
- ･Probability of complete When you draw a specified number of times Gacha, the probability of completion is calculated.
- ･Probability of lottery The probability of hitting is calculated from the amount of money and the winning probability of the number of sheets of purchase of the lottery and the hit.
- ･Probability of continuously win The probability of continuously win is displayed by the list when drawing lots about a specific probability.

### Calculate area

- ･Area of quilateral triangle Area are calculated from the length of one side of the equilateral triangle.
- ･Base and height of triangle The mathematical formula for area of a triangle calculated from the base and height.
- ･Two side and angle of triangle The area of a triangle is calculated from two side and the angle between those.
- ･One side and both end of triangle The area of a triangle is calculated from one side and the angle at both ends.
- ･Three side of triangle The area of a triangle is calculated from the length of three side.
- ･Area of square Area of a square is calculated from the length of one side.
- ･Area of rectangle Area of a rectangle is calculated from the length of vertical and horizontal.
- ･Area of trapezoid Area of a trapezoid is calculated from upper base and lower base, and height.
- ･Area of rhombus The area of a rhombus is calculated from the length of the diagonal.
- ･Area of parallelogram(base and height) Area of a parallelogram is calculated from the base and height.
- ･Area of parallelogram(two sides and angle) Area of the parallelogram is calculated from the two sides and the angle between them.
- ･Area of quadrilateral(four sides and angle) Area of the quadrilateral is calculated from the sum of the length of the four sides and the diagonal.
- ･Area of circle Area and length of perimeter of a circle is calculated from the radius.
- ･Area of sector Area, length of the arc, and length of chord of sector is calculated from the radius and central angle.
- ･Area of segment Area, length of the arc, and length of chord of segment is calculated from the radius and central angle.

### Calculate volume

- ･Volume, surface area of cube Volume and surface area of cube given the length of one side is calculated.
- ･One side of cube given volume Length of one side and surface area of cube given the volume is calculated.
- ･One side of cube given surface area Length of one side and volume of cube given the surface area is calculated.
- ･Volume, surface area of cuboid Volume and surface area of cuboid given the length of one side is calculated.
- ･One side of cuboid given volume Length of one side and surface area of cuboid given the volume is calculated.
- ･One side of cuboid given surface area Length of one side and volume of cuboid given the surface area is calculated.
- ･Volume, surface area of tetrahedron Volume and surface area of tetrahedron given the length of one side is calculated.
- ･One side of tetrahedron given volume Length of one side and surface area of tetrahedron given the volume is calculated.
- ･One side of tetrahedron given surface area Length of one side and volume of tetrahedron given the surface area is calculated.
- ･Volume of regular square pyramid given base and height Volume and surface area of regular square pyramid given the base and height is calculated.
- ･Volume of regular square pyramid given base and oblique side Volume and surface area of regular square pyramid given the base and oblique side is calculated.

### Calculate triangle

- ･Equilateral triangle(from side) Height and the area are calculated from the length of one side of the equilateral triangle.
- ･Equilateral triangle(from height) Area and length of one side are calculated from the height of the equilateral triangle.
- ･Equilateral triangle(from area) Area and length of one side are calculated from the area of the equilateral triangle.
- ･Right-angled triangle(base and angle) Height, the oblique side, and the area are calculated from the base and the angle of the right-angled triangle.
- ･Right-angled triangle(height and angle) The base, the oblique side, and the area are calculated from height and the angle of the right-angled triangle.
- ･Right-angled triangle(oblique side and angle) The base, height, and the area are calculated from the oblique side and the angle of the right-angled triangle.
- ･Right-angled triangle(base and height) The oblique side, the angle, and the area are calculated from the base and the height of the right-angled triangle.
- ･Right-angled triangle(base and oblique side) Height, the angle, and the area are calculated from the base and the oblique side of the right-angled triangle.
- ･Right-angled triangle(height and blique side) The base, the angle, and the area are calculated from height and the oblique side of the right-angled triangle.
- ･Trigonometric function from angle Trigonometric function is calculated from the angle (degree or radian).
- ･Angle from trigonometric(inverse trigonometric) The angle is calculated from trigonometric function.(inverse trigonometric function)
- ･convert trigonometric function Trigonometric function is calculated and converted.

### Calculate divisor and multiple

- ･Prime factorization The prime factor resolves the input value.
- ･Greatest common divisor(2 number) Greatest common divisor of two numbers are calculated.
- ･Greatest common divisor(3 number) Greatest common divisor of three numbers are calculated.
- ･Divisor The divisor of the input value is calculated.
- ･Common divisor(2 number) Common divisor of two numbers are calculated.
- ･Common divisor(3 number) Common divisor of three numbers are calculated.
- ･Least common multiple(2 number) Lowest common multiple of two numbers are calculated.
- ･Least common multiple(3 number) Lowest common multiple of three numbers are calculated.
- ･Common multiple(2 number) Common multiple of two numbers are calculated.
- ･Common multiple(3 number) Common multiple of three numbers are calculated.

### Calculate progression

- ･Arithmetic progression The value of nth is calculated from the first term and common difference specified in the arithmetic progression.
- ･Sum of arithmetic progression The sum of the arithmetic progression is calculated from the first term and the common difference and the range.
- ･Geometric progression The value of nth is calculated from the first term and the common ratio specified in geometric progression.
- ･Sum of eometric progression The sum of the geometric progression is calculated from the first term and the common ratio and range.
- ･Fibonacci sequence Nth value is calculated in the Fibonacci sequence.
- ･The sum of the progression (pa^2+qa+r) Calculate the sum of progression whose recurrence relation is pa^2+qa+r.