# Radians to Quarter circles Conversion

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

### Angle Conversion

to

input
= 0.63661978
= 63662 × 10-5
= 63662E-5
= 63662e-5

= 1.27323957
= 0.0127324 × 102
= 0.0127324E2
= 0.0127324e2

= 1.90985935
= 0.0190986 × 102
= 0.0190986E2
= 0.0190986e2

= 2.54647913
= 0.0254648 × 102
= 0.0254648E2
= 0.0254648e2

= 3.18309892
= 0.031831 × 102
= 0.031831E2
= 0.031831e2

### Quick Look: radians to quarter circles

 radian 1 rad 2 rad 3 rad 4 rad 5 rad 6 rad 7 rad 8 rad 9 rad 10 rad 11 rad 12 rad 13 rad 14 rad 15 rad 16 rad 17 rad 18 rad 19 rad 20 rad 21 rad 22 rad 23 rad 24 rad 25 rad 26 rad 27 rad 28 rad 29 rad 30 rad 31 rad 32 rad 33 rad 34 rad 35 rad 36 rad 37 rad 38 rad 39 rad 40 rad 41 rad 42 rad 43 rad 44 rad 45 rad 46 rad 47 rad 48 rad 49 rad 50 rad 51 rad 52 rad 53 rad 54 rad 55 rad 56 rad 57 rad 58 rad 59 rad 60 rad 61 rad 62 rad 63 rad 64 rad 65 rad 66 rad 67 rad 68 rad 69 rad 70 rad 71 rad 72 rad 73 rad 74 rad 75 rad 76 rad 77 rad 78 rad 79 rad 80 rad 81 rad 82 rad 83 rad 84 rad 85 rad 86 rad 87 rad 88 rad 89 rad 90 rad 91 rad 92 rad 93 rad 94 rad 95 rad 96 rad 97 rad 98 rad 99 rad 100 rad quarter circle 0.6366198 1/4 circle 1.2732396 1/4 circle 1.9098593 1/4 circle 2.5464791 1/4 circle 3.1830989 1/4 circle 3.8197187 1/4 circle 4.4563385 1/4 circle 5.0929583 1/4 circle 5.7295780 1/4 circle 6.3661978 1/4 circle 7.0028176 1/4 circle 7.6394374 1/4 circle 8.2760572 1/4 circle 8.9126770 1/4 circle 9.5492967 1/4 circle 10.1859165 1/4 circle 10.8225363 1/4 circle 11.4591561 1/4 circle 12.0957759 1/4 circle 12.7323957 1/4 circle 13.3690154 1/4 circle 14.0056352 1/4 circle 14.6422550 1/4 circle 15.2788748 1/4 circle 15.9154946 1/4 circle 16.5521144 1/4 circle 17.1887341 1/4 circle 17.8253539 1/4 circle 18.4619737 1/4 circle 19.0985935 1/4 circle 19.7352133 1/4 circle 20.3718331 1/4 circle 21.0084528 1/4 circle 21.6450726 1/4 circle 22.2816924 1/4 circle 22.9183122 1/4 circle 23.5549320 1/4 circle 24.1915518 1/4 circle 24.8281715 1/4 circle 25.4647913 1/4 circle 26.1014111 1/4 circle 26.7380309 1/4 circle 27.3746507 1/4 circle 28.0112705 1/4 circle 28.6478902 1/4 circle 29.2845100 1/4 circle 29.9211298 1/4 circle 30.5577496 1/4 circle 31.1943694 1/4 circle 31.8309892 1/4 circle 32.4676089 1/4 circle 33.1042287 1/4 circle 33.7408485 1/4 circle 34.3774683 1/4 circle 35.0140881 1/4 circle 35.6507079 1/4 circle 36.2873276 1/4 circle 36.9239474 1/4 circle 37.5605672 1/4 circle 38.1971870 1/4 circle 38.8338068 1/4 circle 39.4704266 1/4 circle 40.1070463 1/4 circle 40.7436661 1/4 circle 41.3802859 1/4 circle 42.0169057 1/4 circle 42.6535255 1/4 circle 43.2901453 1/4 circle 43.9267650 1/4 circle 44.5633848 1/4 circle 45.2000046 1/4 circle 45.8366244 1/4 circle 46.4732442 1/4 circle 47.1098640 1/4 circle 47.7464837 1/4 circle 48.3831035 1/4 circle 49.0197233 1/4 circle 49.6563431 1/4 circle 50.2929629 1/4 circle 50.9295827 1/4 circle 51.5662024 1/4 circle 52.2028222 1/4 circle 52.8394420 1/4 circle 53.4760618 1/4 circle 54.1126816 1/4 circle 54.7493014 1/4 circle 55.3859211 1/4 circle 56.0225409 1/4 circle 56.6591607 1/4 circle 57.2957805 1/4 circle 57.9324003 1/4 circle 58.5690201 1/4 circle 59.2056398 1/4 circle 59.8422596 1/4 circle 60.4788794 1/4 circle 61.1154992 1/4 circle 61.7521190 1/4 circle 62.3887388 1/4 circle 63.0253585 1/4 circle 63.6619783 1/4 circle

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
radianrad

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.

= 1 rad

Metric system SI

#### conversion table

radiansquarter circlesradiansquarter circles
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

1/4 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 °

= 1.5707963 rad

Metric system SI

### conversion table

quarter circlesradiansquarter circlesradians
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

### Conversion table

radiansquarter circles
1= 0.6366198
1.5707963= 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 …)