UKismetMathLibrary::RadiansToDegrees

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Converts an angle from radians to degrees by multiplying by 180/π. Use to convert results from Acos, Asin, Atan, or Atan2 into human-readable degrees.

Caveats & Gotchas

• UE's FRotator stores angles in degrees — always convert radian results with this function (or FMath::RadiansToDegrees) before assigning to a rotator component.
• The return type is double; assigning to a float UPROPERTY will narrow the value, which is fine for most UI display purposes but introduces small rounding errors in iterative calculations.

Signature

static UE_INL_API double RadiansToDegrees(double A);

Parameters

Name	Type	Description	Default
A	double	Angle in radians to convert.	—

Return Type

double

Example

Display angle between two vectors in degrees C++

double Dot = FVector::DotProduct(ForwardA.GetSafeNormal(), ForwardB.GetSafeNormal());
double AngleRad = UKismetMathLibrary::Acos(FMath::Clamp(Dot, -1.0, 1.0));
double AngleDeg = UKismetMathLibrary::RadiansToDegrees(AngleRad);
UE_LOG(LogGame, Log, TEXT("Angle: %.2f degrees"), AngleDeg);

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

Feedback

Was this helpful?