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 day | 1 440 1/d | 2 880 1/d | 4 320 1/d | 5 760 1/d | 7 200 1/d | 8 640 1/d | 10 080 1/d | 11 520 1/d | 12 960 1/d | 14 400 1/d | 15 840 1/d | 17 280 1/d | 18 720 1/d | 20 160 1/d | 21 600 1/d | 23 040 1/d | 24 480 1/d | 25 920 1/d | 27 360 1/d | 28 800 1/d | 30 240 1/d | 31 680 1/d | 33 120 1/d | 34 560 1/d | 36 000 1/d | 37 440 1/d | 38 880 1/d | 40 320 1/d | 41 760 1/d | 43 200 1/d | 44 640 1/d | 46 080 1/d | 47 520 1/d | 48 960 1/d | 50 400 1/d | 51 840 1/d | 53 280 1/d | 54 720 1/d | 56 160 1/d | 57 600 1/d | 59 040 1/d | 60 480 1/d | 61 920 1/d | 63 360 1/d | 64 800 1/d | 66 240 1/d | 67 680 1/d | 69 120 1/d | 70 560 1/d | 72 000 1/d | 73 440 1/d | 74 880 1/d | 76 320 1/d | 77 760 1/d | 79 200 1/d | 80 640 1/d | 82 080 1/d | 83 520 1/d | 84 960 1/d | 86 400 1/d | 87 840 1/d | 89 280 1/d | 90 720 1/d | 92 160 1/d | 93 600 1/d | 95 040 1/d | 96 480 1/d | 97 920 1/d | 99 360 1/d | 100 800 1/d | 102 240 1/d | 103 680 1/d | 105 120 1/d | 106 560 1/d | 108 000 1/d | 109 440 1/d | 110 880 1/d | 112 320 1/d | 113 760 1/d | 115 200 1/d | 116 640 1/d | 118 080 1/d | 119 520 1/d | 120 960 1/d | 122 400 1/d | 123 840 1/d | 125 280 1/d | 126 720 1/d | 128 160 1/d | 129 600 1/d | 131 040 1/d | 132 480 1/d | 133 920 1/d | 135 360 1/d | 136 800 1/d | 138 240 1/d | 139 680 1/d | 141 120 1/d | 142 560 1/d | 144 000 1/d |
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 day | revolutions per minute | 1 per day |
---|---|---|---|
1 | = 1440 | 6 | = 8640 |
2 | = 2880 | 7 | = 10080 |
3 | = 4320 | 8 | = 11520 |
4 | = 5760 | 9 | = 12960 |
5 | = 7200 | 10 | = 14400 |
The 1 per day is equivalent to cycle per day, a unit of frequency measurement.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
1 per day | 1/d | =1 per day = 1/24 cycle per hour = 1/(24*60) cycle per minute = 1/(24*3600) cycle per second | = 1/(24*3600) hertz | Angular frequency |
1 per day | revolutions per minute | 1 per day | revolutions per minute |
---|---|---|---|
1 | = 0.00069444444444444 | 6 | = 0.0041666666666667 |
2 | = 0.0013888888888889 | 7 | = 0.0048611111111111 |
3 | = 0.0020833333333333 | 8 | = 0.0055555555555556 |
4 | = 0.0027777777777778 | 9 | = 0.00625 |
5 | = 0.0034722222222222 | 10 | = 0.0069444444444444 |
revolutions per minute | 1 per day |
---|---|
1 | = 1 440 |
0.0006944 | = 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 …) |