Gear Ratio Calculator
Pair 1:
Pair 2:
Pair 3:
Pair 4:
Pair 5:
Pair 6:
Pair 7:
Pair 8:
Pair 9:
Pair 10:
Pair 11:
Pair 12:
Pair 13:
Pair 14:
Pair 15:
Pair 16:
Pair 17:
Pair 18:
Pair 19:
Pair 20:
Pair 21:
Pair 22:
Pair 23:
Pair 24:
Pair 25:
Final ratio: 1:1
Speed and torque are unaffected.
Show output for
How many:
motor(s):
Teeth | Gears | ||||
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1 |
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8 |
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12 |
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14 |
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16 |
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20 |
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24 |
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28 |
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36 |
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40 |
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56 |
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60 |
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140 |
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168 |
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Planetary gearing consists of three elements: a sun gear, a ring gear and a number of planet gears mounted on a carrier.
One of these elements is always fixed, one is an input and one is an output. Select gear sizes below and hit CALCULATE
to see ratios for all three cases.
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The + marks the position of your driver gear's axle. Click an empty pin hole
to select the position of your follower gear's axle and see the available gear combinations:
Units: