attoliter | 1 aL | 2 aL | 3 aL | 4 aL | 5 aL | 6 aL | 7 aL | 8 aL | 9 aL | 10 aL | 11 aL | 12 aL | 13 aL | 14 aL | 15 aL | 16 aL | 17 aL | 18 aL | 19 aL | 20 aL | 21 aL | 22 aL | 23 aL | 24 aL | 25 aL | 26 aL | 27 aL | 28 aL | 29 aL | 30 aL | 31 aL | 32 aL | 33 aL | 34 aL | 35 aL | 36 aL | 37 aL | 38 aL | 39 aL | 40 aL | 41 aL | 42 aL | 43 aL | 44 aL | 45 aL | 46 aL | 47 aL | 48 aL | 49 aL | 50 aL | 51 aL | 52 aL | 53 aL | 54 aL | 55 aL | 56 aL | 57 aL | 58 aL | 59 aL | 60 aL | 61 aL | 62 aL | 63 aL | 64 aL | 65 aL | 66 aL | 67 aL | 68 aL | 69 aL | 70 aL | 71 aL | 72 aL | 73 aL | 74 aL | 75 aL | 76 aL | 77 aL | 78 aL | 79 aL | 80 aL | 81 aL | 82 aL | 83 aL | 84 aL | 85 aL | 86 aL | 87 aL | 88 aL | 89 aL | 90 aL | 91 aL | 92 aL | 93 aL | 94 aL | 95 aL | 96 aL | 97 aL | 98 aL | 99 aL | 100 aL |
metric cup | 4.0 × 10-18 c | 8.0 × 10-18 c | 1.2 × 10-17 c | 1.6 × 10-17 c | 2.0 × 10-17 c | 2.4 × 10-17 c | 2.8 × 10-17 c | 3.2 × 10-17 c | 3.6 × 10-17 c | 4.0 × 10-17 c | 4.4 × 10-17 c | 4.8 × 10-17 c | 5.2 × 10-17 c | 5.6 × 10-17 c | 6.0 × 10-17 c | 6.4 × 10-17 c | 6.8 × 10-17 c | 7.2 × 10-17 c | 7.6 × 10-17 c | 8.0 × 10-17 c | 8.4 × 10-17 c | 8.8 × 10-17 c | 9.2 × 10-17 c | 9.6 × 10-17 c | 1.0 × 10-16 c | 1.04 × 10-16 c | 1.08 × 10-16 c | 1.12 × 10-16 c | 1.16 × 10-16 c | 1.2 × 10-16 c | 1.24 × 10-16 c | 1.28 × 10-16 c | 1.32 × 10-16 c | 1.36 × 10-16 c | 1.4 × 10-16 c | 1.44 × 10-16 c | 1.48 × 10-16 c | 1.52 × 10-16 c | 1.56 × 10-16 c | 1.6 × 10-16 c | 1.64 × 10-16 c | 1.68 × 10-16 c | 1.72 × 10-16 c | 1.76 × 10-16 c | 1.8 × 10-16 c | 1.84 × 10-16 c | 1.88 × 10-16 c | 1.92 × 10-16 c | 1.96 × 10-16 c | 2.0 × 10-16 c | 2.04 × 10-16 c | 2.08 × 10-16 c | 2.12 × 10-16 c | 2.16 × 10-16 c | 2.2 × 10-16 c | 2.24 × 10-16 c | 2.28 × 10-16 c | 2.32 × 10-16 c | 2.36 × 10-16 c | 2.4 × 10-16 c | 2.44 × 10-16 c | 2.48 × 10-16 c | 2.52 × 10-16 c | 2.56 × 10-16 c | 2.6 × 10-16 c | 2.64 × 10-16 c | 2.68 × 10-16 c | 2.72 × 10-16 c | 2.76 × 10-16 c | 2.8 × 10-16 c | 2.84 × 10-16 c | 2.88 × 10-16 c | 2.92 × 10-16 c | 2.96 × 10-16 c | 3.0 × 10-16 c | 3.04 × 10-16 c | 3.08 × 10-16 c | 3.12 × 10-16 c | 3.16 × 10-16 c | 3.2 × 10-16 c | 3.24 × 10-16 c | 3.28 × 10-16 c | 3.32 × 10-16 c | 3.36 × 10-16 c | 3.4 × 10-16 c | 3.44 × 10-16 c | 3.48 × 10-16 c | 3.52 × 10-16 c | 3.56 × 10-16 c | 3.6 × 10-16 c | 3.64 × 10-16 c | 3.68 × 10-16 c | 3.72 × 10-16 c | 3.76 × 10-16 c | 3.8 × 10-16 c | 3.84 × 10-16 c | 3.88 × 10-16 c | 3.92 × 10-16 c | 3.96 × 10-16 c | 4.0 × 10-16 c |
The attoliter or attolitre is a common metric unit of volume. It is equal to 10-21 cubic meters. Plural name is attoliters.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attoliter | aL | ≡ 106 nm3 | ≡ 10-21 m3 | Metric system SI |
attoliters | metric cups | attoliters | metric cups |
---|---|---|---|
1 | ≡ 4.0E-18 | 6 | ≡ 2.4E-17 |
2 | ≡ 8.0E-18 | 7 | ≡ 2.8E-17 |
3 | ≡ 1.2E-17 | 8 | ≡ 3.2E-17 |
4 | ≡ 1.6E-17 | 9 | ≡ 3.6E-17 |
5 | ≡ 2.0E-17 | 10 | ≡ 4.0E-17 |
Australia, Canada, New Zealand, and some other members of the Commonwealth of Nations—being former British colonies that have since metricated—employ a "metric cup" of 250 millilitres. Although derived from the metric system, it is not an official metric unit.
1 cup | = | 250 | millilitres |
= | 16 2⁄3 | international tablespoons (15 ml each) | |
= | 12.5 | Australian tablespoons (20 ml each) | |
≈ | 8.80 | imperial fluid ounces | |
≈ | 8.45 | U.S. customary fluid ounces |
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
metric cup | c | = 250.0×10−6 m3 | ≡ 250.0×10−6 m3 | Imperial/US |
metric cups | attoliters | metric cups | attoliters |
---|---|---|---|
1 | ≡ 2.5E+17 | 6 | ≡ 1.5E+18 |
2 | ≡ 5.0E+17 | 7 | ≡ 1.75E+18 |
3 | ≡ 7.5E+17 | 8 | ≡ 2.0E+18 |
4 | ≡ 1.0E+18 | 9 | ≡ 2.25E+18 |
5 | ≡ 1.25E+18 | 10 | ≡ 2.5E+18 |
attoliters | metric cups |
---|---|
1 | ≡ 4.0 × 10-18 |
2.5 × 1017 | ≡ 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 …) |