# Quarter circles to Radians Conversion

Quarter circle to radian conversion allow you make a conversion between quarter circle and radian easily. You can find the tool in the following.

### Angle Conversion

to

input
= 1.57079630
= 0.015708 × 102
= 0.015708E2
= 0.015708e2

= 3.14159260
= 0.0314159 × 102
= 0.0314159E2
= 0.0314159e2

= 4.71238890
= 0.0471239 × 102
= 0.0471239E2
= 0.0471239e2

= 6.28318520
= 0.0628319 × 102
= 0.0628319E2
= 0.0628319e2

= 7.85398150
= 0.0785398 × 102
= 0.0785398E2
= 0.0785398e2

### Quick Look: quarter circles to radians

1/4 circle or quarter circle is equal to 360°/4 = 90°. Plural name is quarter circles.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
quarter circle1/4 circle

≡ 45 °

Metric system SI

#### conversion table

1= 1.57079636= 9.4247778
2= 3.14159267= 10.9955741
3= 4.71238898= 12.5663704
4= 6.28318529= 14.1371667
5= 7.853981510= 15.707963

The radian is the standard unit of angular measure, used in many areas of mathematics. The length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends; one radian is just under 57.3 degrees.

Name of unitSymbolDefinitionRelation to SI unitsUnit System

The angle subtended at the center of a circle by an arc whose length is equal to the circle's radius. One full revolution encompasses 2π radians.

Metric system SI

### conversion table

1= 0.636619783227146= 3.8197186993629
2= 1.27323956645437= 4.45633848259
3= 1.90985934968148= 5.0929582658172
4= 2.54647913290869= 5.7295780490443
5= 3.183098916135710= 6.3661978322714

1= 1.5707963
0.6366198= 1

### Conversion in other languages

You can find the conversion in other languages in the following:

### Legend

SymbolDefinition
exactly equal
approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)