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 |
1 per minute | 1 1/min | 2 1/min | 3 1/min | 4 1/min | 5 1/min | 6 1/min | 7 1/min | 8 1/min | 9 1/min | 10 1/min | 11 1/min | 12 1/min | 13 1/min | 14 1/min | 15 1/min | 16 1/min | 17 1/min | 18 1/min | 19 1/min | 20 1/min | 21 1/min | 22 1/min | 23 1/min | 24 1/min | 25 1/min | 26 1/min | 27 1/min | 28 1/min | 29 1/min | 30 1/min | 31 1/min | 32 1/min | 33 1/min | 34 1/min | 35 1/min | 36 1/min | 37 1/min | 38 1/min | 39 1/min | 40 1/min | 41 1/min | 42 1/min | 43 1/min | 44 1/min | 45 1/min | 46 1/min | 47 1/min | 48 1/min | 49 1/min | 50 1/min | 51 1/min | 52 1/min | 53 1/min | 54 1/min | 55 1/min | 56 1/min | 57 1/min | 58 1/min | 59 1/min | 60 1/min | 61 1/min | 62 1/min | 63 1/min | 64 1/min | 65 1/min | 66 1/min | 67 1/min | 68 1/min | 69 1/min | 70 1/min | 71 1/min | 72 1/min | 73 1/min | 74 1/min | 75 1/min | 76 1/min | 77 1/min | 78 1/min | 79 1/min | 80 1/min | 81 1/min | 82 1/min | 83 1/min | 84 1/min | 85 1/min | 86 1/min | 87 1/min | 88 1/min | 89 1/min | 90 1/min | 91 1/min | 92 1/min | 93 1/min | 94 1/min | 95 1/min | 96 1/min | 97 1/min | 98 1/min | 99 1/min | 100 1/min |
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 | 1 per minute | revolutions per minute | 1 per minute |
---|---|---|---|
1 | = 1 | 6 | = 6 |
2 | = 2 | 7 | = 7 |
3 | = 3 | 8 | = 8 |
4 | = 4 | 9 | = 9 |
5 | = 5 | 10 | = 10 |
The 1 per minute is equivalent to cycle per minute, a unit of frequency measurement.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
1 per minute | 1/min | = 1 cycle per minute = 1/60 cycle per second | = 1/60 hertz | Angular frequency |
1 per minute | revolutions per minute | 1 per minute | revolutions per minute |
---|---|---|---|
1 | = 1 | 6 | = 6 |
2 | = 2 | 7 | = 7 |
3 | = 3 | 8 | = 8 |
4 | = 4 | 9 | = 9 |
5 | = 5 | 10 | = 10 |
revolutions per minute | 1 per minute |
---|---|
1 | = 1 |
1 | = 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 …) |