Quarter Circles to Half Circles calculator

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How to use it?

To use the calculator, place your cursor in the desired unit field and write a number.The calculator will automatically convert your number and display the result in the other unit fields. If needed use the dot "." as the decimal separator.

Rounding: 
1/4 circle
1/2 circle

Quarter Circles to Half Circles formula

Half Circles to Quarter Circles formula

Quarter Circles
Quarter Circles

A quarter circle sector is equal to 90°.

Source: Wikipedia

Half Circles
Half Circles

A semicircle with arithmetic and geometric means of a and b. In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn). It has only one line of symmetry (reflection symmetry). In non-technical usage, the term "semicircle" is sometimes used to refer to a half-disk, which is a two-dimensional geometric shape that also includes the diameter segment from one end of the arc to the other as well as all the interior points.

Source: Wikipedia


Quarter Circles to Half Circles Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Quarter Circles to Half Circles conversion table based on your needs.

Selected rounding: none (You can change it above in the dropdown)

From:
To:
Increment:
1/4 circle 1/2 circle 1/4 circle 1/2 circle 1/4 circle 1/2 circle 1/4 circle 1/2 circle
1 0.5 26 13 51 25.5 76 38
2 1 27 13.5 52 26 77 38.5
3 1.5 28 14 53 26.5 78 39
4 2 29 14.5 54 27 79 39.5
5 2.5 30 15 55 27.5 80 40
6 3 31 15.5 56 28 81 40.5
7 3.5 32 16 57 28.5 82 41
8 4 33 16.5 58 29 83 41.5
9 4.5 34 17 59 29.5 84 42
10 5 35 17.5 60 30 85 42.5
11 5.5 36 18 61 30.5 86 43
12 6 37 18.5 62 31 87 43.5
13 6.5 38 19 63 31.5 88 44
14 7 39 19.5 64 32 89 44.5
15 7.5 40 20 65 32.5 90 45
16 8 41 20.5 66 33 91 45.5
17 8.5 42 21 67 33.5 92 46
18 9 43 21.5 68 34 93 46.5
19 9.5 44 22 69 34.5 94 47
20 10 45 22.5 70 35 95 47.5
21 10.5 46 23 71 35.5 96 48
22 11 47 23.5 72 36 97 48.5
23 11.5 48 24 73 36.5 98 49
24 12 49 24.5 74 37 99 49.5
25 12.5 50 25 75 37.5 100 50

  • Half Circle (180°)
    A circular sector or circle sector (symbol: ⌔), is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. In the diagram, θ is the central angle in radians, r the radius of the circle, and L is the arc length of the minor sector. A half circle sector is equal to 180°.
  • Quarter Circle (90°)
    A circular sector or circle sector (symbol: ⌔), is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. In the diagram, θ is the central angle in radians, r the radius of the circle, and L is the arc length of the minor sector. A quarter circle sector is equal to 90°.
Tags Quarter Circles to Half Circles 1/4 circle to 1/2 circle Quarter Circles 1/4 circle Half Circles 1/2 circle converter calculator conversion table