| parsec | 1 pc | 2 pc | 3 pc | 4 pc | 5 pc | 6 pc | 7 pc | 8 pc | 9 pc | 10 pc | 11 pc | 12 pc | 13 pc | 14 pc | 15 pc | 16 pc | 17 pc | 18 pc | 19 pc | 20 pc | 21 pc | 22 pc | 23 pc | 24 pc | 25 pc | 26 pc | 27 pc | 28 pc | 29 pc | 30 pc | 31 pc | 32 pc | 33 pc | 34 pc | 35 pc | 36 pc | 37 pc | 38 pc | 39 pc | 40 pc | 41 pc | 42 pc | 43 pc | 44 pc | 45 pc | 46 pc | 47 pc | 48 pc | 49 pc | 50 pc | 51 pc | 52 pc | 53 pc | 54 pc | 55 pc | 56 pc | 57 pc | 58 pc | 59 pc | 60 pc | 61 pc | 62 pc | 63 pc | 64 pc | 65 pc | 66 pc | 67 pc | 68 pc | 69 pc | 70 pc | 71 pc | 72 pc | 73 pc | 74 pc | 75 pc | 76 pc | 77 pc | 78 pc | 79 pc | 80 pc | 81 pc | 82 pc | 83 pc | 84 pc | 85 pc | 86 pc | 87 pc | 88 pc | 89 pc | 90 pc | 91 pc | 92 pc | 93 pc | 94 pc | 95 pc | 96 pc | 97 pc | 98 pc | 99 pc | 100 pc |
| french; charriere | 9.2570327444741 × 1019 F | 1.8514065488948 × 1020 F | 2.7771098233422 × 1020 F | 3.7028130977896 × 1020 F | 4.6285163722371 × 1020 F | 5.5542196466845 × 1020 F | 6.4799229211319 × 1020 F | 7.4056261955793 × 1020 F | 8.3313294700267 × 1020 F | 9.2570327444741 × 1020 F | 1.0182736018922 × 1021 F | 1.1108439293369 × 1021 F | 1.2034142567816 × 1021 F | 1.2959845842264 × 1021 F | 1.3885549116711 × 1021 F | 1.4811252391159 × 1021 F | 1.5736955665606 × 1021 F | 1.6662658940053 × 1021 F | 1.7588362214501 × 1021 F | 1.8514065488948 × 1021 F | 1.9439768763396 × 1021 F | 2.0365472037843 × 1021 F | 2.129117531229 × 1021 F | 2.2216878586738 × 1021 F | 2.3142581861185 × 1021 F | 2.4068285135633 × 1021 F | 2.499398841008 × 1021 F | 2.5919691684528 × 1021 F | 2.6845394958975 × 1021 F | 2.7771098233422 × 1021 F | 2.869680150787 × 1021 F | 2.9622504782317 × 1021 F | 3.0548208056765 × 1021 F | 3.1473911331212 × 1021 F | 3.2399614605659 × 1021 F | 3.3325317880107 × 1021 F | 3.4251021154554 × 1021 F | 3.5176724429002 × 1021 F | 3.6102427703449 × 1021 F | 3.7028130977896 × 1021 F | 3.7953834252344 × 1021 F | 3.8879537526791 × 1021 F | 3.9805240801239 × 1021 F | 4.0730944075686 × 1021 F | 4.1656647350133 × 1021 F | 4.2582350624581 × 1021 F | 4.3508053899028 × 1021 F | 4.4433757173476 × 1021 F | 4.5359460447923 × 1021 F | 4.6285163722371 × 1021 F | 4.7210866996818 × 1021 F | 4.8136570271265 × 1021 F | 4.9062273545713 × 1021 F | 4.998797682016 × 1021 F | 5.0913680094608 × 1021 F | 5.1839383369055 × 1021 F | 5.2765086643502 × 1021 F | 5.369078991795 × 1021 F | 5.4616493192397 × 1021 F | 5.5542196466845 × 1021 F | 5.6467899741292 × 1021 F | 5.7393603015739 × 1021 F | 5.8319306290187 × 1021 F | 5.9245009564634 × 1021 F | 6.0170712839082 × 1021 F | 6.1096416113529 × 1021 F | 6.2022119387977 × 1021 F | 6.2947822662424 × 1021 F | 6.3873525936871 × 1021 F | 6.4799229211319 × 1021 F | 6.5724932485766 × 1021 F | 6.6650635760214 × 1021 F | 6.7576339034661 × 1021 F | 6.8502042309108 × 1021 F | 6.9427745583556 × 1021 F | 7.0353448858003 × 1021 F | 7.1279152132451 × 1021 F | 7.2204855406898 × 1021 F | 7.3130558681345 × 1021 F | 7.4056261955793 × 1021 F | 7.498196523024 × 1021 F | 7.5907668504688 × 1021 F | 7.6833371779135 × 1021 F | 7.7759075053583 × 1021 F | 7.868477832803 × 1021 F | 7.9610481602477 × 1021 F | 8.0536184876925 × 1021 F | 8.1461888151372 × 1021 F | 8.238759142582 × 1021 F | 8.3313294700267 × 1021 F | 8.4238997974714 × 1021 F | 8.5164701249162 × 1021 F | 8.6090404523609 × 1021 F | 8.7016107798057 × 1021 F | 8.7941811072504 × 1021 F | 8.8867514346951 × 1021 F | 8.9793217621399 × 1021 F | 9.0718920895846 × 1021 F | 9.1644624170294 × 1021 F | 9.2570327444741 × 1021 F |
The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| parsec | pc | Distant point with a parallax shift of one arc second from a base of one astronomical unit. | ≈ 30 856 775 814 913 700 m | Science - Astronomy (Length) |
| parsecs | french; charriere | parsecs | french; charriere |
|---|---|---|---|
| 1 | ≈ 9.2570327444741E+19 | 4 | ≈ 3.7028130977896E+20 |
| 1.5 | ≈ 1.3885549116711E+20 | 4.5 | ≈ 4.1656647350133E+20 |
| 2 | ≈ 1.8514065488948E+20 | 5 | ≈ 4.6285163722371E+20 |
| 2.5 | ≈ 2.3142581861185E+20 | 5.5 | ≈ 5.0913680094608E+20 |
| 3 | ≈ 2.7771098233422E+20 | 6 | ≈ 5.5542196466845E+20 |
The French scale or French gauge system is commonly used to measure the size of a catheter. It is most often abbreviated as Fr, but can often be seen abbreviated as Fg, Ga, FR or F. It may also be abbreviated as CH or Ch (for Charrière, its inventor).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| french; charriere | F | ≡ 1⁄3 mm | = 0.3×10−3 m | Other (Length) |
| french; charriere | parsecs | french; charriere | parsecs |
|---|---|---|---|
| 1 | ≈ 1.0802597631481E-20 | 4 | ≈ 4.3210390525925E-20 |
| 1.5 | ≈ 1.6203896447222E-20 | 4.5 | ≈ 4.8611689341665E-20 |
| 2 | ≈ 2.1605195262962E-20 | 5 | ≈ 5.4012988157406E-20 |
| 2.5 | ≈ 2.7006494078703E-20 | 5.5 | ≈ 5.9414286973147E-20 |
| 3 | ≈ 3.2407792894444E-20 | 6 | ≈ 6.4815585788887E-20 |
| parsecs | french; charriere |
|---|---|
| 1 | ≈ 9.2570327444741 × 1019 |
| 1.0802597631481 × 10-20 | ≈ 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 …) |