| foot, metric (short) | 1 smf | 2 smf | 3 smf | 4 smf | 5 smf | 6 smf | 7 smf | 8 smf | 9 smf | 10 smf | 11 smf | 12 smf | 13 smf | 14 smf | 15 smf | 16 smf | 17 smf | 18 smf | 19 smf | 20 smf | 21 smf | 22 smf | 23 smf | 24 smf | 25 smf | 26 smf | 27 smf | 28 smf | 29 smf | 30 smf | 31 smf | 32 smf | 33 smf | 34 smf | 35 smf | 36 smf | 37 smf | 38 smf | 39 smf | 40 smf | 41 smf | 42 smf | 43 smf | 44 smf | 45 smf | 46 smf | 47 smf | 48 smf | 49 smf | 50 smf | 51 smf | 52 smf | 53 smf | 54 smf | 55 smf | 56 smf | 57 smf | 58 smf | 59 smf | 60 smf | 61 smf | 62 smf | 63 smf | 64 smf | 65 smf | 66 smf | 67 smf | 68 smf | 69 smf | 70 smf | 71 smf | 72 smf | 73 smf | 74 smf | 75 smf | 76 smf | 77 smf | 78 smf | 79 smf | 80 smf | 81 smf | 82 smf | 83 smf | 84 smf | 85 smf | 86 smf | 87 smf | 88 smf | 89 smf | 90 smf | 91 smf | 92 smf | 93 smf | 94 smf | 95 smf | 96 smf | 97 smf | 98 smf | 99 smf | 100 smf |
| nanometer | 300 000 000 nm | 600 000 000 nm | 900 000 000 nm | 1 200 000 000 nm | 1 500 000 000 nm | 1 800 000 000 nm | 2 100 000 000 nm | 2 400 000 000 nm | 2 700 000 000 nm | 3 000 000 000 nm | 3 300 000 000 nm | 3 600 000 000 nm | 3 900 000 000 nm | 4 200 000 000 nm | 4 500 000 000 nm | 4 800 000 000 nm | 5 100 000 000 nm | 5 400 000 000 nm | 5 700 000 000 nm | 6 000 000 000 nm | 6 300 000 000 nm | 6 600 000 000 nm | 6 900 000 000 nm | 7 200 000 000 nm | 7 500 000 000 nm | 7 800 000 000 nm | 8 100 000 000 nm | 8 400 000 000 nm | 8 700 000 000 nm | 9 000 000 000 nm | 9 300 000 000 nm | 9 600 000 000 nm | 9 900 000 000 nm | 10 200 000 000 nm | 10 500 000 000 nm | 10 800 000 000 nm | 11 100 000 000 nm | 11 400 000 000 nm | 11 700 000 000 nm | 12 000 000 000 nm | 12 300 000 000 nm | 12 600 000 000 nm | 12 900 000 000 nm | 13 200 000 000 nm | 13 500 000 000 nm | 13 800 000 000 nm | 14 100 000 000 nm | 14 400 000 000 nm | 14 700 000 000 nm | 15 000 000 000 nm | 15 300 000 000 nm | 15 600 000 000 nm | 15 900 000 000 nm | 16 200 000 000 nm | 16 500 000 000 nm | 16 800 000 000 nm | 17 100 000 000 nm | 17 400 000 000 nm | 17 700 000 000 nm | 18 000 000 000 nm | 18 300 000 000 nm | 18 600 000 000 nm | 18 900 000 000 nm | 19 200 000 000 nm | 19 500 000 000 nm | 19 800 000 000 nm | 20 100 000 000 nm | 20 400 000 000 nm | 20 700 000 000 nm | 21 000 000 000 nm | 21 300 000 000 nm | 21 600 000 000 nm | 21 900 000 000 nm | 22 200 000 000 nm | 22 500 000 000 nm | 22 800 000 000 nm | 23 100 000 000 nm | 23 400 000 000 nm | 23 700 000 000 nm | 24 000 000 000 nm | 24 300 000 000 nm | 24 600 000 000 nm | 24 900 000 000 nm | 25 200 000 000 nm | 25 500 000 000 nm | 25 800 000 000 nm | 26 100 000 000 nm | 26 400 000 000 nm | 26 700 000 000 nm | 27 000 000 000 nm | 27 300 000 000 nm | 27 600 000 000 nm | 27 900 000 000 nm | 28 200 000 000 nm | 28 500 000 000 nm | 28 800 000 000 nm | 29 100 000 000 nm | 29 400 000 000 nm | 29 700 000 000 nm | 30 000 000 000 nm |
≡ 0.30 m
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| foot, metric (short) | smf | ≡ 0.30 m | ≡ 0.30 m | Metric system SI |
| feet, metric (short) | nanometers | feet, metric (short) | nanometers |
|---|---|---|---|
| 1 | ≡ 300000000 | 4 | ≡ 1200000000 |
| 1.5 | ≡ 450000000 | 4.5 | ≡ 1350000000 |
| 2 | ≡ 600000000 | 5 | ≡ 1500000000 |
| 2.5 | ≡ 750000000 | 5.5 | ≡ 1650000000 |
| 3 | ≡ 900000000 | 6 | ≡ 1800000000 |
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth of a metre (0.000000001 m). The name combines the SI prefix nano- (from the Ancient Greek νάνος, nanos, "dwarf") with the parent unit name metre (from Greek μέτρον, metrοn, "unit of measurement"). It can be written in scientific notation as 1×10−9 m, in engineering notation as 1 E−9 m, and is simply 1/1000000000 metres.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| nanometer | nm | = 3.2808×10−9 ft | ≡ 1×10-9 m ≡ 0.000000001 m | Metric system SI |
| nanometers | feet, metric (short) | nanometers | feet, metric (short) |
|---|---|---|---|
| 1 | ≡ 3.3333333333333E-9 | 4 | ≡ 1.3333333333333E-8 |
| 1.5 | ≡ 5.0E-9 | 4.5 | ≡ 1.5E-8 |
| 2 | ≡ 6.6666666666667E-9 | 5 | ≡ 1.6666666666667E-8 |
| 2.5 | ≡ 8.3333333333333E-9 | 5.5 | ≡ 1.8333333333333E-8 |
| 3 | ≡ 1.0E-8 | 6 | ≡ 2.0E-8 |
| feet, metric (short) | nanometers |
|---|---|
| 1 | ≡ 300 000 000 |
| 3.3333333333333 × 10-9 | ≡ 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 …) |