| earth radius | 1 R⊕ | 2 R⊕ | 3 R⊕ | 4 R⊕ | 5 R⊕ | 6 R⊕ | 7 R⊕ | 8 R⊕ | 9 R⊕ | 10 R⊕ | 11 R⊕ | 12 R⊕ | 13 R⊕ | 14 R⊕ | 15 R⊕ | 16 R⊕ | 17 R⊕ | 18 R⊕ | 19 R⊕ | 20 R⊕ | 21 R⊕ | 22 R⊕ | 23 R⊕ | 24 R⊕ | 25 R⊕ | 26 R⊕ | 27 R⊕ | 28 R⊕ | 29 R⊕ | 30 R⊕ | 31 R⊕ | 32 R⊕ | 33 R⊕ | 34 R⊕ | 35 R⊕ | 36 R⊕ | 37 R⊕ | 38 R⊕ | 39 R⊕ | 40 R⊕ | 41 R⊕ | 42 R⊕ | 43 R⊕ | 44 R⊕ | 45 R⊕ | 46 R⊕ | 47 R⊕ | 48 R⊕ | 49 R⊕ | 50 R⊕ | 51 R⊕ | 52 R⊕ | 53 R⊕ | 54 R⊕ | 55 R⊕ | 56 R⊕ | 57 R⊕ | 58 R⊕ | 59 R⊕ | 60 R⊕ | 61 R⊕ | 62 R⊕ | 63 R⊕ | 64 R⊕ | 65 R⊕ | 66 R⊕ | 67 R⊕ | 68 R⊕ | 69 R⊕ | 70 R⊕ | 71 R⊕ | 72 R⊕ | 73 R⊕ | 74 R⊕ | 75 R⊕ | 76 R⊕ | 77 R⊕ | 78 R⊕ | 79 R⊕ | 80 R⊕ | 81 R⊕ | 82 R⊕ | 83 R⊕ | 84 R⊕ | 85 R⊕ | 86 R⊕ | 87 R⊕ | 88 R⊕ | 89 R⊕ | 90 R⊕ | 91 R⊕ | 92 R⊕ | 93 R⊕ | 94 R⊕ | 95 R⊕ | 96 R⊕ | 97 R⊕ | 98 R⊕ | 99 R⊕ | 100 R⊕ |
| mile (US Survey) | 3,958.7479475 mi (US) | 7,917.4958950 mi (US) | 11,876.2438424 mi (US) | 15,834.9917899 mi (US) | 19,793.7397374 mi (US) | 23,752.4876849 mi (US) | 27,711.2356324 mi (US) | 31,669.9835798 mi (US) | 35,628.7315273 mi (US) | 39,587.4794748 mi (US) | 43,546.2274223 mi (US) | 47,504.9753698 mi (US) | 51,463.7233172 mi (US) | 55,422.4712647 mi (US) | 59,381.2192122 mi (US) | 63,339.9671597 mi (US) | 67,298.7151072 mi (US) | 71,257.4630547 mi (US) | 75,216.2110021 mi (US) | 79,174.9589496 mi (US) | 83,133.7068971 mi (US) | 87,092.4548446 mi (US) | 91,051.2027921 mi (US) | 95,009.9507395 mi (US) | 98,968.6986870 mi (US) | 102,927.4466345 mi (US) | 106,886.1945820 mi (US) | 110,844.9425295 mi (US) | 114,803.6904769 mi (US) | 118,762.4384244 mi (US) | 122,721.1863719 mi (US) | 126,679.9343194 mi (US) | 130,638.6822669 mi (US) | 134,597.4302143 mi (US) | 138,556.1781618 mi (US) | 142,514.9261093 mi (US) | 146,473.6740568 mi (US) | 150,432.4220043 mi (US) | 154,391.1699518 mi (US) | 158,349.9178992 mi (US) | 162,308.6658467 mi (US) | 166,267.4137942 mi (US) | 170,226.1617417 mi (US) | 174,184.9096892 mi (US) | 178,143.6576366 mi (US) | 182,102.4055841 mi (US) | 186,061.1535316 mi (US) | 190,019.9014791 mi (US) | 193,978.6494266 mi (US) | 197,937.3973740 mi (US) | 201,896.1453215 mi (US) | 205,854.893269 mi (US) | 209,813.6412165 mi (US) | 213,772.3891640 mi (US) | 217,731.1371114 mi (US) | 221,689.8850589 mi (US) | 225,648.6330064 mi (US) | 229,607.3809539 mi (US) | 233,566.1289014 mi (US) | 237,524.8768488 mi (US) | 241,483.6247963 mi (US) | 245,442.3727438 mi (US) | 249,401.1206913 mi (US) | 253,359.8686388 mi (US) | 257,318.6165862 mi (US) | 261,277.3645337 mi (US) | 265,236.1124812 mi (US) | 269,194.8604287 mi (US) | 273,153.6083762 mi (US) | 277,112.3563237 mi (US) | 281,071.1042711 mi (US) | 285,029.8522186 mi (US) | 288,988.6001661 mi (US) | 292,947.3481136 mi (US) | 296,906.0960611 mi (US) | 300,864.8440085 mi (US) | 304,823.5919560 mi (US) | 308,782.3399035 mi (US) | 312,741.0878510 mi (US) | 316,699.8357985 mi (US) | 320,658.5837459 mi (US) | 324,617.3316934 mi (US) | 328,576.0796409 mi (US) | 332,534.8275884 mi (US) | 336,493.5755359 mi (US) | 340,452.3234833 mi (US) | 344,411.0714308 mi (US) | 348,369.8193783 mi (US) | 352,328.5673258 mi (US) | 356,287.3152733 mi (US) | 360,246.0632207 mi (US) | 364,204.8111682 mi (US) | 368,163.5591157 mi (US) | 372,122.3070632 mi (US) | 376,081.0550107 mi (US) | 380,039.8029582 mi (US) | 383,998.5509056 mi (US) | 387,957.2988531 mi (US) | 391,916.0468006 mi (US) | 395,874.7947481 mi (US) |
Earth radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). This length is also used as a unit of distance, especially in astronomy and geology, where it is usually denoted by R⊕.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| earth radius | R⊕ | ≈ 6,371 km | ≈ 6,371 km | Science - Astronomy (Length) |
| earth radius | miles (US Survey) | earth radius | miles (US Survey) |
|---|---|---|---|
| 1 | ≈ 3958.7479474807 | 4 | ≈ 15834.991789923 |
| 1.5 | ≈ 5938.121921221 | 4.5 | ≈ 17814.365763663 |
| 2 | ≈ 7917.4958949614 | 5 | ≈ 19793.739737403 |
| 2.5 | ≈ 9896.8698687017 | 5.5 | ≈ 21773.113711144 |
| 3 | ≈ 11876.243842442 | 6 | ≈ 23752.487684884 |
≡ 5280 US Survey feet ≡ (5280 × 1200⁄3937) m
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| mile (US Survey) | mi (US) | ≡ 5280 US Survey feet ≡ (5280 × 1200⁄3937) m | ≈ 1609.347219 m | Imperial/US |
| miles (US Survey) | earth radius | miles (US Survey) | earth radius |
|---|---|---|---|
| 1 | ≈ 0.00025260511991838 | 4 | ≈ 0.0010104204796735 |
| 1.5 | ≈ 0.00037890767987757 | 4.5 | ≈ 0.0011367230396327 |
| 2 | ≈ 0.00050521023983676 | 5 | ≈ 0.0012630255995919 |
| 2.5 | ≈ 0.00063151279979595 | 5.5 | ≈ 0.0013893281595511 |
| 3 | ≈ 0.00075781535975514 | 6 | ≈ 0.0015156307195103 |
| earth radius | miles (US Survey) |
|---|---|
| 1 | ≈ 3,958.7479475 |
| 0.0002526 | ≈ 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 …) |