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 |
spat | 3.0 × 10-13 S | 6.0 × 10-13 S | 9.0 × 10-13 S | 1.2 × 10-12 S | 1.5 × 10-12 S | 1.8 × 10-12 S | 2.1 × 10-12 S | 2.4 × 10-12 S | 2.7 × 10-12 S | 3.0 × 10-12 S | 3.3 × 10-12 S | 3.6 × 10-12 S | 3.9 × 10-12 S | 4.2 × 10-12 S | 4.5 × 10-12 S | 4.8 × 10-12 S | 5.1 × 10-12 S | 5.4 × 10-12 S | 5.7 × 10-12 S | 6.0 × 10-12 S | 6.3 × 10-12 S | 6.6 × 10-12 S | 6.9 × 10-12 S | 7.2 × 10-12 S | 7.5 × 10-12 S | 7.8 × 10-12 S | 8.1 × 10-12 S | 8.4 × 10-12 S | 8.7 × 10-12 S | 9.0 × 10-12 S | 9.3 × 10-12 S | 9.6 × 10-12 S | 9.9 × 10-12 S | 1.02 × 10-11 S | 1.05 × 10-11 S | 1.08 × 10-11 S | 1.11 × 10-11 S | 1.14 × 10-11 S | 1.17 × 10-11 S | 1.2 × 10-11 S | 1.23 × 10-11 S | 1.26 × 10-11 S | 1.29 × 10-11 S | 1.32 × 10-11 S | 1.35 × 10-11 S | 1.38 × 10-11 S | 1.41 × 10-11 S | 1.44 × 10-11 S | 1.47 × 10-11 S | 1.5 × 10-11 S | 1.53 × 10-11 S | 1.56 × 10-11 S | 1.59 × 10-11 S | 1.62 × 10-11 S | 1.65 × 10-11 S | 1.68 × 10-11 S | 1.71 × 10-11 S | 1.74 × 10-11 S | 1.77 × 10-11 S | 1.8 × 10-11 S | 1.83 × 10-11 S | 1.86 × 10-11 S | 1.89 × 10-11 S | 1.92 × 10-11 S | 1.95 × 10-11 S | 1.98 × 10-11 S | 2.01 × 10-11 S | 2.04 × 10-11 S | 2.07 × 10-11 S | 2.1 × 10-11 S | 2.13 × 10-11 S | 2.16 × 10-11 S | 2.19 × 10-11 S | 2.22 × 10-11 S | 2.25 × 10-11 S | 2.28 × 10-11 S | 2.31 × 10-11 S | 2.34 × 10-11 S | 2.37 × 10-11 S | 2.4 × 10-11 S | 2.43 × 10-11 S | 2.46 × 10-11 S | 2.49 × 10-11 S | 2.52 × 10-11 S | 2.55 × 10-11 S | 2.58 × 10-11 S | 2.61 × 10-11 S | 2.64 × 10-11 S | 2.67 × 10-11 S | 2.7 × 10-11 S | 2.73 × 10-11 S | 2.76 × 10-11 S | 2.79 × 10-11 S | 2.82 × 10-11 S | 2.85 × 10-11 S | 2.88 × 10-11 S | 2.91 × 10-11 S | 2.94 × 10-11 S | 2.97 × 10-11 S | 3.0 × 10-11 S |
≡ 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) | spats | feet, metric (short) | spats |
---|---|---|---|
1 | ≡ 3.0E-13 | 4 | ≡ 1.2E-12 |
1.5 | ≡ 4.5E-13 | 4.5 | ≡ 1.35E-12 |
2 | ≡ 6.0E-13 | 5 | ≡ 1.5E-12 |
2.5 | ≡ 7.5E-13 | 5.5 | ≡ 1.65E-12 |
3 | ≡ 9.0E-13 | 6 | ≡ 1.8E-12 |
The spat (symbol S) is also an obsolete unit of distance used in astronomy. It is equal to 1000000000 kilometres (1 Tm or 1012 m). It is about 6.6846 astronomical units (AU), 1.057×10−4 light-years or3.240×10−5 parsecs.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
spat | S | ≡ 1×1012 m | ≡ 1×1012 m | Science - Astronomy (Length) |
spats | feet, metric (short) | spats | feet, metric (short) |
---|---|---|---|
1 | ≡ 3333333333333.3 | 4 | ≡ 13333333333333 |
1.5 | ≡ 5000000000000 | 4.5 | ≡ 15000000000000 |
2 | ≡ 6666666666666.7 | 5 | ≡ 16666666666667 |
2.5 | ≡ 8333333333333.3 | 5.5 | ≡ 18333333333333 |
3 | ≡ 10000000000000 | 6 | ≡ 20000000000000 |
feet, metric (short) | spats |
---|---|
1 | ≡ 3.0 × 10-13 |
3,333,333,333,333.3 | ≡ 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 …) |