quarter | 1 qr. | 2 qr. | 3 qr. | 4 qr. | 5 qr. | 6 qr. | 7 qr. | 8 qr. | 9 qr. | 10 qr. | 11 qr. | 12 qr. | 13 qr. | 14 qr. | 15 qr. | 16 qr. | 17 qr. | 18 qr. | 19 qr. | 20 qr. | 21 qr. | 22 qr. | 23 qr. | 24 qr. | 25 qr. | 26 qr. | 27 qr. | 28 qr. | 29 qr. | 30 qr. | 31 qr. | 32 qr. | 33 qr. | 34 qr. | 35 qr. | 36 qr. | 37 qr. | 38 qr. | 39 qr. | 40 qr. | 41 qr. | 42 qr. | 43 qr. | 44 qr. | 45 qr. | 46 qr. | 47 qr. | 48 qr. | 49 qr. | 50 qr. | 51 qr. | 52 qr. | 53 qr. | 54 qr. | 55 qr. | 56 qr. | 57 qr. | 58 qr. | 59 qr. | 60 qr. | 61 qr. | 62 qr. | 63 qr. | 64 qr. | 65 qr. | 66 qr. | 67 qr. | 68 qr. | 69 qr. | 70 qr. | 71 qr. | 72 qr. | 73 qr. | 74 qr. | 75 qr. | 76 qr. | 77 qr. | 78 qr. | 79 qr. | 80 qr. | 81 qr. | 82 qr. | 83 qr. | 84 qr. | 85 qr. | 86 qr. | 87 qr. | 88 qr. | 89 qr. | 90 qr. | 91 qr. | 92 qr. | 93 qr. | 94 qr. | 95 qr. | 96 qr. | 97 qr. | 98 qr. | 99 qr. | 100 qr. |
ell | 0.2 ell | 0.4 ell | 0.6 ell | 0.8 ell | 1 ell | 1.2 ell | 1.4 ell | 1.6 ell | 1.8 ell | 2 ell | 2.2 ell | 2.4 ell | 2.6 ell | 2.8 ell | 3 ell | 3.2 ell | 3.4 ell | 3.6 ell | 3.8 ell | 4 ell | 4.2 ell | 4.4 ell | 4.6 ell | 4.8 ell | 5 ell | 5.2 ell | 5.4 ell | 5.6 ell | 5.8 ell | 6 ell | 6.2 ell | 6.4 ell | 6.6 ell | 6.8 ell | 7 ell | 7.2 ell | 7.4 ell | 7.6 ell | 7.8 ell | 8 ell | 8.2 ell | 8.4 ell | 8.6 ell | 8.8 ell | 9 ell | 9.2 ell | 9.4 ell | 9.6 ell | 9.8 ell | 10 ell | 10.2 ell | 10.4 ell | 10.6 ell | 10.8 ell | 11 ell | 11.2 ell | 11.4 ell | 11.6 ell | 11.8 ell | 12 ell | 12.2 ell | 12.4 ell | 12.6 ell | 12.8 ell | 13 ell | 13.2 ell | 13.4 ell | 13.6 ell | 13.8 ell | 14 ell | 14.2 ell | 14.4 ell | 14.6 ell | 14.8 ell | 15 ell | 15.2 ell | 15.4 ell | 15.6 ell | 15.8 ell | 16 ell | 16.2 ell | 16.4 ell | 16.6 ell | 16.8 ell | 17 ell | 17.2 ell | 17.4 ell | 17.6 ell | 17.8 ell | 18 ell | 18.2 ell | 18.4 ell | 18.6 ell | 18.8 ell | 19 ell | 19.2 ell | 19.4 ell | 19.6 ell | 19.8 ell | 20 ell |
The quarter (lit. "one-fourth") is used as the name of several distinct English units based on ¼ sizes of some base unit.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
quarter | qr. | ≡ 1⁄4 yd | = 0.2286 m | Metric system SI |
quarters | ell | quarters | ell |
---|---|---|---|
1 | = 0.2 | 4 | = 0.8 |
1.5 | = 0.3 | 4.5 | = 0.9 |
2 | = 0.4 | 5 | = 1 |
2.5 | = 0.5 | 5.5 | = 1.1 |
3 | = 0.6 | 6 | = 1.2 |
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
ell | ell | ≡ 45 in (In England usually) | = 1.143 m | Other (Length) |
ell | quarters | ell | quarters |
---|---|---|---|
1 | = 5 | 4 | = 20 |
1.5 | = 7.5 | 4.5 | = 22.5 |
2 | = 10 | 5 | = 25 |
2.5 | = 12.5 | 5.5 | = 27.5 |
3 | = 15 | 6 | = 30 |
quarters | ell |
---|---|
1 | = 0.2 |
5 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |