revolutions per minute | 1 RPM | 2 RPM | 3 RPM | 4 RPM | 5 RPM | 6 RPM | 7 RPM | 8 RPM | 9 RPM | 10 RPM | 11 RPM | 12 RPM | 13 RPM | 14 RPM | 15 RPM | 16 RPM | 17 RPM | 18 RPM | 19 RPM | 20 RPM | 21 RPM | 22 RPM | 23 RPM | 24 RPM | 25 RPM | 26 RPM | 27 RPM | 28 RPM | 29 RPM | 30 RPM | 31 RPM | 32 RPM | 33 RPM | 34 RPM | 35 RPM | 36 RPM | 37 RPM | 38 RPM | 39 RPM | 40 RPM | 41 RPM | 42 RPM | 43 RPM | 44 RPM | 45 RPM | 46 RPM | 47 RPM | 48 RPM | 49 RPM | 50 RPM | 51 RPM | 52 RPM | 53 RPM | 54 RPM | 55 RPM | 56 RPM | 57 RPM | 58 RPM | 59 RPM | 60 RPM | 61 RPM | 62 RPM | 63 RPM | 64 RPM | 65 RPM | 66 RPM | 67 RPM | 68 RPM | 69 RPM | 70 RPM | 71 RPM | 72 RPM | 73 RPM | 74 RPM | 75 RPM | 76 RPM | 77 RPM | 78 RPM | 79 RPM | 80 RPM | 81 RPM | 82 RPM | 83 RPM | 84 RPM | 85 RPM | 86 RPM | 87 RPM | 88 RPM | 89 RPM | 90 RPM | 91 RPM | 92 RPM | 93 RPM | 94 RPM | 95 RPM | 96 RPM | 97 RPM | 98 RPM | 99 RPM | 100 RPM |
radian per second | 0.1047198 rad/s | 0.2094395 rad/s | 0.3141593 rad/s | 0.4188790 rad/s | 0.5235988 rad/s | 0.6283185 rad/s | 0.7330383 rad/s | 0.8377580 rad/s | 0.9424778 rad/s | 1.0471975 rad/s | 1.1519173 rad/s | 1.2566370 rad/s | 1.3613568 rad/s | 1.4660765 rad/s | 1.5707963 rad/s | 1.6755161 rad/s | 1.7802358 rad/s | 1.8849556 rad/s | 1.9896753 rad/s | 2.0943951 rad/s | 2.1991148 rad/s | 2.3038346 rad/s | 2.4085543 rad/s | 2.5132741 rad/s | 2.6179938 rad/s | 2.7227136 rad/s | 2.8274333 rad/s | 2.9321531 rad/s | 3.0368728 rad/s | 3.1415926 rad/s | 3.2463124 rad/s | 3.3510321 rad/s | 3.4557519 rad/s | 3.5604716 rad/s | 3.6651914 rad/s | 3.7699111 rad/s | 3.8746309 rad/s | 3.9793506 rad/s | 4.0840704 rad/s | 4.1887901 rad/s | 4.2935099 rad/s | 4.3982296 rad/s | 4.5029494 rad/s | 4.6076691 rad/s | 4.7123889 rad/s | 4.8171087 rad/s | 4.9218284 rad/s | 5.0265482 rad/s | 5.1312679 rad/s | 5.2359877 rad/s | 5.3407074 rad/s | 5.4454272 rad/s | 5.5501469 rad/s | 5.6548667 rad/s | 5.7595864 rad/s | 5.8643062 rad/s | 5.9690259 rad/s | 6.0737457 rad/s | 6.1784654 rad/s | 6.2831852 rad/s | 6.3879050 rad/s | 6.4926247 rad/s | 6.5973445 rad/s | 6.7020642 rad/s | 6.8067840 rad/s | 6.9115037 rad/s | 7.0162235 rad/s | 7.1209432 rad/s | 7.2256630 rad/s | 7.3303827 rad/s | 7.4351025 rad/s | 7.5398222 rad/s | 7.6445420 rad/s | 7.7492617 rad/s | 7.8539815 rad/s | 7.9587013 rad/s | 8.0634210 rad/s | 8.1681408 rad/s | 8.2728605 rad/s | 8.3775803 rad/s | 8.4823000 rad/s | 8.5870198 rad/s | 8.6917395 rad/s | 8.7964593 rad/s | 8.9011790 rad/s | 9.0058988 rad/s | 9.1106185 rad/s | 9.2153383 rad/s | 9.3200580 rad/s | 9.4247778 rad/s | 9.5294976 rad/s | 9.6342173 rad/s | 9.7389371 rad/s | 9.8436568 rad/s | 9.9483766 rad/s | 10.0530963 rad/s | 10.1578161 rad/s | 10.2625358 rad/s | 10.3672556 rad/s | 10.4719753 rad/s |
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is a measure of the frequency of rotation, specifically the number of rotations around a fixed axis in one minute. It is used as a measure of rotational speed of a mechanical component. In the French language, tr/min (tours par minute) is the common abbreviation. The German language uses the abbreviation U/min or u/min (Umdrehungen pro Minute).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
revolutions per minute | RPM | ≡ 1⁄60 Hz | ≡ 1⁄60 Hz | Angular frequency |
revolutions per minute | radians per second | revolutions per minute | radians per second |
---|---|---|---|
1 | ≈ 0.10471975333333 | 6 | ≈ 0.62831852 |
2 | ≈ 0.20943950666667 | 7 | ≈ 0.73303827333333 |
3 | ≈ 0.31415926 | 8 | ≈ 0.83775802666667 |
4 | ≈ 0.41887901333333 | 9 | ≈ 0.94247778 |
5 | ≈ 0.52359876666667 | 10 | ≈ 1.0471975333333 |
The radian per second (symbol: rad·s−1 or rad/s) is the SI unit of rotational speed (angular velocity), commonly denoted by the Greek letter ω (omega). The radian per second is also the unit of angular frequency. The radian per second is defined as the change in the orientation of an object, in radians, every second.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
radian per second | rad/s | ≡ 1 Hz / 2π | ≈ 0.159155 Hz | Angular frequency |
radians per second | revolutions per minute | radians per second | revolutions per minute |
---|---|---|---|
1 | ≈ 9.5492967484072 | 6 | ≈ 57.295780490443 |
2 | ≈ 19.098593496814 | 7 | ≈ 66.84507723885 |
3 | ≈ 28.647890245221 | 8 | ≈ 76.394373987257 |
4 | ≈ 38.197186993629 | 9 | ≈ 85.943670735664 |
5 | ≈ 47.746483742036 | 10 | ≈ 95.492967484072 |
revolutions per minute | radians per second |
---|---|
1 | ≈ 0.1047198 |
9.5492967 | ≈ 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 …) |