Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Mechanical
Pulley Speed Calculator
Calculates the output shaft speed of a belt-and-pulley system based on pulley diameters and input speed. Use it when designing drive systems to achieve a target RPM ratio between driver and driven shafts.
Fill in the required fields to see your result.
Mechanical
Pulley System Calculator
Calculate the effort force required to lift a load using fixed, movable, or compound pulley systems at a given mechanical efficiency. Ideal for rigging engineers, physics students, and maintenance teams planning lifts.
Fill in the required fields to see your result.
Key differences
| Pulley Speed Calculator | Pulley System Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 3 | 4 |
| Result | Output Speed (rpm) | Required Pull Force (N) |
| What it does | Calculates the output shaft speed of a belt-and-pulley system based on pulley diameters and input speed. Use it when designing drive systems to achieve a target RPM ratio between driver and driven shafts. | Calculate the effort force required to lift a load using fixed, movable, or compound pulley systems at a given mechanical efficiency. Ideal for rigging engineers, physics students, and maintenance teams planning lifts. |