fermtometer | 1 fm | 2 fm | 3 fm | 4 fm | 5 fm | 6 fm | 7 fm | 8 fm | 9 fm | 10 fm | 11 fm | 12 fm | 13 fm | 14 fm | 15 fm | 16 fm | 17 fm | 18 fm | 19 fm | 20 fm | 21 fm | 22 fm | 23 fm | 24 fm | 25 fm | 26 fm | 27 fm | 28 fm | 29 fm | 30 fm | 31 fm | 32 fm | 33 fm | 34 fm | 35 fm | 36 fm | 37 fm | 38 fm | 39 fm | 40 fm | 41 fm | 42 fm | 43 fm | 44 fm | 45 fm | 46 fm | 47 fm | 48 fm | 49 fm | 50 fm | 51 fm | 52 fm | 53 fm | 54 fm | 55 fm | 56 fm | 57 fm | 58 fm | 59 fm | 60 fm | 61 fm | 62 fm | 63 fm | 64 fm | 65 fm | 66 fm | 67 fm | 68 fm | 69 fm | 70 fm | 71 fm | 72 fm | 73 fm | 74 fm | 75 fm | 76 fm | 77 fm | 78 fm | 79 fm | 80 fm | 81 fm | 82 fm | 83 fm | 84 fm | 85 fm | 86 fm | 87 fm | 88 fm | 89 fm | 90 fm | 91 fm | 92 fm | 93 fm | 94 fm | 95 fm | 96 fm | 97 fm | 98 fm | 99 fm | 100 fm |
point (American, English) | 2.845354958031 × 10-12 pt | 5.690709916062 × 10-12 pt | 8.536064874093 × 10-12 pt | 1.1381419832124 × 10-11 pt | 1.4226774790155 × 10-11 pt | 1.7072129748186 × 10-11 pt | 1.9917484706217 × 10-11 pt | 2.2762839664248 × 10-11 pt | 2.5608194622279 × 10-11 pt | 2.845354958031 × 10-11 pt | 3.1298904538341 × 10-11 pt | 3.4144259496372 × 10-11 pt | 3.6989614454403 × 10-11 pt | 3.9834969412434 × 10-11 pt | 4.2680324370465 × 10-11 pt | 4.5525679328496 × 10-11 pt | 4.8371034286527 × 10-11 pt | 5.1216389244558 × 10-11 pt | 5.4061744202589 × 10-11 pt | 5.690709916062 × 10-11 pt | 5.9752454118651 × 10-11 pt | 6.2597809076682 × 10-11 pt | 6.5443164034713 × 10-11 pt | 6.8288518992744 × 10-11 pt | 7.1133873950775 × 10-11 pt | 7.3979228908806 × 10-11 pt | 7.6824583866837 × 10-11 pt | 7.9669938824868 × 10-11 pt | 8.2515293782899 × 10-11 pt | 8.536064874093 × 10-11 pt | 8.8206003698961 × 10-11 pt | 9.1051358656992 × 10-11 pt | 9.3896713615023 × 10-11 pt | 9.6742068573054 × 10-11 pt | 9.9587423531086 × 10-11 pt | 1.0243277848912 × 10-10 pt | 1.0527813344715 × 10-10 pt | 1.0812348840518 × 10-10 pt | 1.1096884336321 × 10-10 pt | 1.1381419832124 × 10-10 pt | 1.1665955327927 × 10-10 pt | 1.195049082373 × 10-10 pt | 1.2235026319533 × 10-10 pt | 1.2519561815336 × 10-10 pt | 1.280409731114 × 10-10 pt | 1.3088632806943 × 10-10 pt | 1.3373168302746 × 10-10 pt | 1.3657703798549 × 10-10 pt | 1.3942239294352 × 10-10 pt | 1.4226774790155 × 10-10 pt | 1.4511310285958 × 10-10 pt | 1.4795845781761 × 10-10 pt | 1.5080381277564 × 10-10 pt | 1.5364916773367 × 10-10 pt | 1.5649452269171 × 10-10 pt | 1.5933987764974 × 10-10 pt | 1.6218523260777 × 10-10 pt | 1.650305875658 × 10-10 pt | 1.6787594252383 × 10-10 pt | 1.7072129748186 × 10-10 pt | 1.7356665243989 × 10-10 pt | 1.7641200739792 × 10-10 pt | 1.7925736235595 × 10-10 pt | 1.8210271731398 × 10-10 pt | 1.8494807227202 × 10-10 pt | 1.8779342723005 × 10-10 pt | 1.9063878218808 × 10-10 pt | 1.9348413714611 × 10-10 pt | 1.9632949210414 × 10-10 pt | 1.9917484706217 × 10-10 pt | 2.020202020202 × 10-10 pt | 2.0486555697823 × 10-10 pt | 2.0771091193626 × 10-10 pt | 2.105562668943 × 10-10 pt | 2.1340162185233 × 10-10 pt | 2.1624697681036 × 10-10 pt | 2.1909233176839 × 10-10 pt | 2.2193768672642 × 10-10 pt | 2.2478304168445 × 10-10 pt | 2.2762839664248 × 10-10 pt | 2.3047375160051 × 10-10 pt | 2.3331910655854 × 10-10 pt | 2.3616446151657 × 10-10 pt | 2.3900981647461 × 10-10 pt | 2.4185517143264 × 10-10 pt | 2.4470052639067 × 10-10 pt | 2.475458813487 × 10-10 pt | 2.5039123630673 × 10-10 pt | 2.5323659126476 × 10-10 pt | 2.5608194622279 × 10-10 pt | 2.5892730118082 × 10-10 pt | 2.6177265613885 × 10-10 pt | 2.6461801109688 × 10-10 pt | 2.6746336605492 × 10-10 pt | 2.7030872101295 × 10-10 pt | 2.7315407597098 × 10-10 pt | 2.7599943092901 × 10-10 pt | 2.7884478588704 × 10-10 pt | 2.8169014084507 × 10-10 pt | 2.845354958031 × 10-10 pt |
The femtometre (American spelling femtometer, symbol fm derived from the Danish and Norwegian word femten, "fifteen"+Ancient Greek: μέτρον, metrοn, "unit of measurement") is an SI unit of length equal to 10−15 metres, which means a quadrillionth of one. This distance can also be called a fermi and was so named in honour of physicist Enrico Fermi, as it is a typical length-scale of nuclear physics.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
fermtometer | fm | 1000 attometres = 1 femtometre = 1 fermi = 0.001 picometre = 1×10−15 metres 1000000 femtometres = 10 ångström = 1 nanometre. | ≡ 1×10-15 m | Metric system SI |
fermtometers | points (American, English) | fermtometers | points (American, English) |
---|---|---|---|
1 | ≈ 2.845354958031E-12 | 4 | ≈ 1.1381419832124E-11 |
1.5 | ≈ 4.2680324370465E-12 | 4.5 | ≈ 1.280409731114E-11 |
2 | ≈ 5.690709916062E-12 | 5 | ≈ 1.4226774790155E-11 |
2.5 | ≈ 7.1133873950775E-12 | 5.5 | ≈ 1.5649452269171E-11 |
3 | ≈ 8.536064874093E-12 | 6 | ≈ 1.7072129748186E-11 |
In typography, the point is the smallest unit of measure. It is used for measuring font size, leading, and other items on a printed page.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (American, English) | pt | ≡ 1⁄72.272 in | ≈ 0.000351450 m | Other (Length) |
points (American, English) | fermtometers | points (American, English) | fermtometers |
---|---|---|---|
1 | ≈ 351450000000 | 4 | ≈ 1405800000000 |
1.5 | ≈ 527175000000 | 4.5 | ≈ 1581525000000 |
2 | ≈ 702900000000 | 5 | ≈ 1757250000000 |
2.5 | ≈ 878625000000 | 5.5 | ≈ 1932975000000 |
3 | ≈ 1054350000000 | 6 | ≈ 2108700000000 |
fermtometers | points (American, English) |
---|---|
1 | ≈ 2.845354958031 × 10-12 |
351 450 000 000 | ≈ 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 …) |