meter | 1 m | 2 m | 3 m | 4 m | 5 m | 6 m | 7 m | 8 m | 9 m | 10 m | 11 m | 12 m | 13 m | 14 m | 15 m | 16 m | 17 m | 18 m | 19 m | 20 m | 21 m | 22 m | 23 m | 24 m | 25 m | 26 m | 27 m | 28 m | 29 m | 30 m | 31 m | 32 m | 33 m | 34 m | 35 m | 36 m | 37 m | 38 m | 39 m | 40 m | 41 m | 42 m | 43 m | 44 m | 45 m | 46 m | 47 m | 48 m | 49 m | 50 m | 51 m | 52 m | 53 m | 54 m | 55 m | 56 m | 57 m | 58 m | 59 m | 60 m | 61 m | 62 m | 63 m | 64 m | 65 m | 66 m | 67 m | 68 m | 69 m | 70 m | 71 m | 72 m | 73 m | 74 m | 75 m | 76 m | 77 m | 78 m | 79 m | 80 m | 81 m | 82 m | 83 m | 84 m | 85 m | 86 m | 87 m | 88 m | 89 m | 90 m | 91 m | 92 m | 93 m | 94 m | 95 m | 96 m | 97 m | 98 m | 99 m | 100 m |
astronomical unit | 6.6845871222684 × 10-12 AU | 1.3369174244537 × 10-11 AU | 2.0053761366805 × 10-11 AU | 2.6738348489074 × 10-11 AU | 3.3422935611342 × 10-11 AU | 4.0107522733611 × 10-11 AU | 4.6792109855879 × 10-11 AU | 5.3476696978148 × 10-11 AU | 6.0161284100416 × 10-11 AU | 6.6845871222684 × 10-11 AU | 7.3530458344953 × 10-11 AU | 8.0215045467221 × 10-11 AU | 8.689963258949 × 10-11 AU | 9.3584219711758 × 10-11 AU | 1.0026880683403 × 10-10 AU | 1.069533939563 × 10-10 AU | 1.1363798107856 × 10-10 AU | 1.2032256820083 × 10-10 AU | 1.270071553231 × 10-10 AU | 1.3369174244537 × 10-10 AU | 1.4037632956764 × 10-10 AU | 1.4706091668991 × 10-10 AU | 1.5374550381217 × 10-10 AU | 1.6043009093444 × 10-10 AU | 1.6711467805671 × 10-10 AU | 1.7379926517898 × 10-10 AU | 1.8048385230125 × 10-10 AU | 1.8716843942352 × 10-10 AU | 1.9385302654578 × 10-10 AU | 2.0053761366805 × 10-10 AU | 2.0722220079032 × 10-10 AU | 2.1390678791259 × 10-10 AU | 2.2059137503486 × 10-10 AU | 2.2727596215713 × 10-10 AU | 2.339605492794 × 10-10 AU | 2.4064513640166 × 10-10 AU | 2.4732972352393 × 10-10 AU | 2.540143106462 × 10-10 AU | 2.6069889776847 × 10-10 AU | 2.6738348489074 × 10-10 AU | 2.7406807201301 × 10-10 AU | 2.8075265913527 × 10-10 AU | 2.8743724625754 × 10-10 AU | 2.9412183337981 × 10-10 AU | 3.0080642050208 × 10-10 AU | 3.0749100762435 × 10-10 AU | 3.1417559474662 × 10-10 AU | 3.2086018186889 × 10-10 AU | 3.2754476899115 × 10-10 AU | 3.3422935611342 × 10-10 AU | 3.4091394323569 × 10-10 AU | 3.4759853035796 × 10-10 AU | 3.5428311748023 × 10-10 AU | 3.609677046025 × 10-10 AU | 3.6765229172476 × 10-10 AU | 3.7433687884703 × 10-10 AU | 3.810214659693 × 10-10 AU | 3.8770605309157 × 10-10 AU | 3.9439064021384 × 10-10 AU | 4.0107522733611 × 10-10 AU | 4.0775981445838 × 10-10 AU | 4.1444440158064 × 10-10 AU | 4.2112898870291 × 10-10 AU | 4.2781357582518 × 10-10 AU | 4.3449816294745 × 10-10 AU | 4.4118275006972 × 10-10 AU | 4.4786733719199 × 10-10 AU | 4.5455192431425 × 10-10 AU | 4.6123651143652 × 10-10 AU | 4.6792109855879 × 10-10 AU | 4.7460568568106 × 10-10 AU | 4.8129027280333 × 10-10 AU | 4.879748599256 × 10-10 AU | 4.9465944704786 × 10-10 AU | 5.0134403417013 × 10-10 AU | 5.080286212924 × 10-10 AU | 5.1471320841467 × 10-10 AU | 5.2139779553694 × 10-10 AU | 5.2808238265921 × 10-10 AU | 5.3476696978148 × 10-10 AU | 5.4145155690374 × 10-10 AU | 5.4813614402601 × 10-10 AU | 5.5482073114828 × 10-10 AU | 5.6150531827055 × 10-10 AU | 5.6818990539282 × 10-10 AU | 5.7487449251509 × 10-10 AU | 5.8155907963735 × 10-10 AU | 5.8824366675962 × 10-10 AU | 5.9492825388189 × 10-10 AU | 6.0161284100416 × 10-10 AU | 6.0829742812643 × 10-10 AU | 6.149820152487 × 10-10 AU | 6.2166660237097 × 10-10 AU | 6.2835118949323 × 10-10 AU | 6.350357766155 × 10-10 AU | 6.4172036373777 × 10-10 AU | 6.4840495086004 × 10-10 AU | 6.5508953798231 × 10-10 AU | 6.6177412510458 × 10-10 AU | 6.6845871222684 × 10-10 AU |
The metre (international spelling) or meter (American spelling) (from the Greek noun μέτρον, "measure") is the base unit of length in the International System of Units (SI). The SI unit symbol is m. The metre is defined as the length of the path travelled by light in a vacuum in 1/299 792 458 seconds.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
meter | m | ≡ Distance light travels in 1⁄299792458 of a second in vacuum. | ≡ 1 m | Metric system SI |
meters | astronomical units | meters | astronomical units |
---|---|---|---|
1 | ≡ 6.6845871222684E-12 | 4 | ≡ 2.6738348489074E-11 |
1.5 | ≡ 1.0026880683403E-11 | 4.5 | ≡ 3.0080642050208E-11 |
2 | ≡ 1.3369174244537E-11 | 5 | ≡ 3.3422935611342E-11 |
2.5 | ≡ 1.6711467805671E-11 | 5.5 | ≡ 3.6765229172476E-11 |
3 | ≡ 2.0053761366805E-11 | 6 | ≡ 4.0107522733611E-11 |
The astronomical unit (symbol: au or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 149 597 870 700 metres (about 150 million kilometres, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
astronomical unit | AU | ≡ 149 597 870 700 m ≈ Distance from Earth to Sun | ≡ 149 597 870 700 m | Science - Astronomy (Length) |
astronomical units | meters | astronomical units | meters |
---|---|---|---|
1 | ≡ 149597870700 | 4 | ≡ 598391482800 |
1.5 | ≡ 224396806050 | 4.5 | ≡ 673190418150 |
2 | ≡ 299195741400 | 5 | ≡ 747989353500 |
2.5 | ≡ 373994676750 | 5.5 | ≡ 822788288850 |
3 | ≡ 448793612100 | 6 | ≡ 897587224200 |
meters | astronomical units |
---|---|
1 | ≡ 6.6845871222684 × 10-12 |
149 597 870 700 | ≡ 1 |
You can find the conversion in other languages in the following:
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 …) |