No metric
I need to change settings to inches
I only thought this was a one stop pulley design app
How can this be a complete app when you can’t even generate pulley sizes required when you know all other specs?

This tool simplifies complex pulley calculations for engineers, mechanics, students, and DIY enthusiasts. It helps determine mechanical advantage, effort force, and other key values for various pulley systems and drive types.
1.4
January 20, 2026
Improved calculation accuracy for pulley systems Enhanced performance and faster results
Pulley & Belt calculator supports simple pulleys, block and tackle systems, and belt and chain drives. It allows for calculations of mechanical advantage, effort force, load force, speed ratio, and torque ratio for these systems.
Yes, the app features a simple and beginner-friendly interface designed to remove guesswork from pulley calculations. It's suitable for both beginners and professionals working with mechanical principles.
Pulley & Belt calculator is a paid app priced at $1.99. There are no in-app purchases or advertisements.
Pulley & Belt calculator is available for iPhone and iPad devices. It is designed for iOS users.
The latest version of Pulley & Belt calculator is 1.4, last updated on January 20, 2026. This indicates a recent update, suggesting ongoing support and potential for future improvements.
Pulley & Belt calculator has an age rating of 4+. This means it is suitable for users aged 4 and above.
Yes, Pulley & Belt calculator includes a built-in efficiency estimation feature. This helps users evaluate the performance of a pulley system and identify potential losses for design improvements.
Based on the available data, Pulley & Belt calculator has received 3 ratings with an average of 1.3 stars. This suggests a low user satisfaction score.