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Both calculators run independently β change the inputs on either side to compare results.
Mechanical
Belt Drive Length Calculator
Calculate the required belt length for open or crossed two-pulley drive systems given pulley diameters and center distance. Used by mechanical engineers and technicians when sizing V-belts or flat belts for machinery.
Fill in the required fields to see your result.
Mechanical
Belt Drive Calculator
Calculate the driven pulley speed for a belt drive system by entering pulley diameters and the drive shaft RPM. Use it when sizing pulleys for motors, conveyor systems, or power tools.
Fill in the required fields to see your result.
Key differences
| Belt Drive Length Calculator | Belt Drive Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 3 |
| Result | Belt Length (mm) | Driven Speed (RPM) |
| What it does | Calculate the required belt length for open or crossed two-pulley drive systems given pulley diameters and center distance. Used by mechanical engineers and technicians when sizing V-belts or flat belts for machinery. | Calculate the driven pulley speed for a belt drive system by entering pulley diameters and the drive shaft RPM. Use it when sizing pulleys for motors, conveyor systems, or power tools. |