Math.toRadians is implemented like this:
public static double toRadians(double angdeg) {
return angdeg / 180.0 * PI;
}
1) If there is a difference, it's negligible. Math.toRadians does the division first, while that answer does the multiplication first.
2) The only way to find out for sure is to test it, but I would expect that neither is faster since they both do the same thing.
Answer from Stack Exchange Broke The Law on Stack OverflowW3Schools
w3schools.com › java › ref_math_toradians.asp
Java Math toRadians() Method
Java Examples Java Videos Java Compiler Java Exercises Java Quiz Java Code Challenges Java Server Java Syllabus Java Study Plan Java Interview Q&A Java Certificate ... System.out.println(Math.toRadians(57)); System.out.println(Math.toRadians(180)); System.out.println(Math.toRadians(45)); System.out.println(Math.toRadians(-30)); System.out.println(Math.toRadians(340));
Tutorialspoint
tutorialspoint.com › java › lang › math_toradians.htm
Java - Math toRadians(double x) Method
The following example shows the usage of Math toRadians() method to get a radian of a negative double value.
Top answer 1 of 2
6
Math.toRadians is implemented like this:
public static double toRadians(double angdeg) {
return angdeg / 180.0 * PI;
}
1) If there is a difference, it's negligible. Math.toRadians does the division first, while that answer does the multiplication first.
2) The only way to find out for sure is to test it, but I would expect that neither is faster since they both do the same thing.
2 of 2
1
In Java 9, the implementations of toRadians and toDegrees were changed to this:
public static double toRadians(double angdeg) {
return angdeg * DEGREES_TO_RADIANS;
}
public static double toDegrees(double angrad) {
return angrad * RADIANS_TO_DEGREES;
}
where DEGREES_TO_RADIANS and RADIANS_TO_DEGREES are literal constants. According to the following sources, this gives a 3-fold performance increase in a JMH micro-benchmark.
(We can also infer that the JIT compiler is not performing an optimization that is equivalent to the above. I presume that is because such an optimization could alter the computation's results. That would make it incorrect in general. The JIT compiler probably cannot make the judgement which way gives more accurate results, and it certainly cannot judge if accuracy ... or reproducibility ... is the most important criterion.)
The JDK bug database entries that relate to this are:
- https://bugs.openjdk.java.net/browse/JDK-8051808
- https://bugs.openjdk.java.net/browse/JDK-4477961
In summary, the answer for Java 9 and later is that the standard Math functions are faster than the alternative version. (Whether this was true in Java 8 and earlier is still untested ...)
Programiz
programiz.com › java-programming › library › math › toradians
Java Math toRadians()
The toRadians() method takes a single parameter. angle - angle in degree which is to be converted to radians ... Note: The conversion from degrees to radians is approximate. However, it is generally inexact. class Main { public static void main(String[] args) { // create variables double angle1 ...
Codecademy
codecademy.com › docs › java › math methods › .toradians()
Java | Math Methods | .toRadians() | Codecademy
October 20, 2022 - The Math.toRadians() method returns the measurement of an angle in degrees to an equivalent angle in radians. ... Looking for an introduction to the theory behind programming? Master Python while learning data structures, algorithms, and more!
Javatpoint
javatpoint.com › java-math-toradians-method
Java Math.toRadians() Method with Examples - Javatpoint
September 27, 2024 - Java Math.toRadians() Method with Examples on abs(), min(), max(), avg(), round(), ceil(), floor(), pow(), sqrt(), sin(), cos(), tan(), exp() etc.
Scaler
scaler.com › home › topics › java math toradians()
Java Math toRadians() - Scaler Topics
May 4, 2023 - An angle measured in degrees can be converted into an approximately equivalent angle measured in radians using toRadians() method defined in the java.lang.Math class.
GeeksforGeeks
geeksforgeeks.org › java › java-toradians-method-example
Java toRadians() method with Example - GeeksforGeeks
August 11, 2021 - // Java program to demonstrate working // of java.lang.Math.toRadians() method import java.lang.Math; class Gfg { // driver code public static void main(String args[]) { // converting PI from degree to radian double deg = 180.0; System.out.println(Math.toRadians(deg)); // converting PI/2 from degree to radian deg = 90.0; System.out.println(Math.toRadians(deg)); // converting PI/4 from degree to radian deg = 45.0; System.out.println(Math.toRadians(deg)); } }
BeginnersBook
beginnersbook.com › 2022 › 10 › java-math-toradians-method
Java Math.toRadians() Method
public class JavaExample { public static void main(String[] args) { double degrees = 45; // degrees to radians conversion double radians = Math.toRadians(degrees); System.out.println(radians); } } Output: 0.7853981633974483 · Math.toRadians(90); // returns 1.5707963267948966 ·
Tutorial Gateway
tutorialgateway.org › java-toradians-function
Java toRadians Function
March 28, 2025 - The Math.toRadians Function allows to converts degrees to an approximately equivalent angle measured in radians.
Tabnine
tabnine.com › home page › code › java › java.lang.math
java.lang.Math.toRadians java code examples | Tabnine
private static float toTangent(float arcInDegrees) { if (arcInDegrees < 0 || arcInDegrees > 90) { throw new IllegalArgumentException("Arc must be between 0 and 90 degrees"); } return (float) Math.tan(Math.toRadians(arcInDegrees / 2)); }
Tutorialspoint
tutorialspoint.com › java › lang › number_toradians.htm
Java - Math toRadians() Method
In this example, we're showing the usage of Math.toRadians() method to get the radians of two double numbers. We've created two double variables x and y and initialized them with a given values.
PREP INSTA
prepinsta.com › home › java tutorial › java math toradians() method
Java Math toRadians() Method | prepinsta
July 15, 2025 - It returns a double value representing the angle in radians.Here’s an example of syntax how to use the toRadians() method: ... Return Value : The measurement of the angle angrad in degrees.
Java Tutorial HQ
javatutorialhq.com › java tutorial › java.lang › math › toradians(double angdeg) method example
Java Math toRadians(double angdeg) method example
September 30, 2019 - package com.javatutorialhq.java.examples; import static java.lang.System.*; import java.util.Scanner; /* * This example source code demonstrates the use of * toRadians(double angdeg) method of Math class */ public class MathToRadians { public static void main(String[] args) { // ask for user input out.print("Enter angle in degrees:"); Scanner scan = new Scanner(System.in); // use scanner to get user console input double degrees = scan.nextDouble(); // convert the angle from degrees to radians double radians = Math.toRadians(degrees); out.println(degrees +" degress = "+radians +" radians"); // close the scanner object to avoid memory leak scan.close(); } }
Microsoft Learn
learn.microsoft.com › en-us › dotnet › api › java.lang.math.toradians
Math.ToRadians(Double) Method (Java.Lang) | Microsoft Learn
January 25, 2024 - [<Android.Runtime.Register("toRadians", "(D)D", "")>] static member ToRadians : double -> double · angdeg · Double · an angle, in degrees · Double · the measurement of the angle angdeg in radians. Attributes · RegisterAttribute · Java documentation for java.lang.Math.toRadians(double).
Vultr Docs
docs.vultr.com › java › standard-library › java › lang › Math › toRadians
Java Math toRadians() - Convert Degrees to Radians | Vultr Docs
August 11, 2021 - public static double ... the code clean and maintainable. The Java Math.toRadians() function efficiently converts angles from degrees to radians, a conversion crucial for applications requiring precise angular ...
Quora
quora.com › What-are-the-ways-to-convert-degrees-to-radians-in-Java
What are the ways to convert degrees to radians in Java? - Quora
November 23, 2020 - Answer: The canonical way is, of course, using appropriate functions from Math class: [code]Math.toRadians(180.0); // == Math.PI Math.toDegrees(Math.PI); // == 180.0 [/code]The lazy but kind of okay method is to do the conversion yourself. It is much less obvious to read though. [code]radians =...
Oracle
docs.oracle.com › javase › 8 › docs › api › java › lang › Math.html
Math (Java Platform SE 8 )
4 days ago - Java™ Platform Standard Ed. 8 ... The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
Tutorialspoint
tutorialspoint.com › java › number_toradians.htm
Java - toRadians() Method
March 28, 2025 - public class Test { public static void main(String args[]) { double x = 45.0; double y = 30.0; System.out.println( Math.toRadians(x) ); System.out.println( Math.toRadians(y) ); } } This will produce the following result − · 0.7853981633974483 0.5235987755982988 · java_numbers.htm ·