Pulley & Belt Calculator

Pulley & Belt Calculator

Giannis Maniedakis

Available on Google Play
4.2(376)
100,000+ installsFreeTools

Updated Feb 6, 2026 · v2.8.3

CompareView on Google Play
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Calculate pulley ratio, belt length & speed, RPM. Convert Hp to Kw.

Pulley Calculator makes working with two‑pulley belt systems quick and easy — whether you’re in the workshop, lab, or classroom. Enter a few dimensions and rotations, and the app instantly calculates key results for setup, design, or troubleshooting. 🔧 Features - Calculate pulley ratio for a two‑pulley belt drive. - Find driven pulley RPM from motor speed and pulley sizes. - Compute belt length based on pulley diameters and center distance. - Determine belt speed for accurate performance checks. - Convert horsepower (Hp) to kilowatts (kW) and kW to Hp instantly. ⚙️ Why You’ll Love It - Clean, intuitive interface built for fast engineering calculations. - Works offline, perfect for workshop or on-site use. - Ideal for mechanics, engineers, students, and DIY builders alike. 💡 Extra Info Icons in the menu made by ultimatearm and Freepik from www.flaticon.com.

Released
March 2, 2020

6 years on Google Play

Version
2.8.3
Updated
Feb 6, 2026
Content Rating
Everyone
Installs
100,000+
Developer
Giannis Maniedakis
Website
N/A
Email
giannis.manie@gmail.com
In-app purchases
No

This app isn't currently appearing in any tracked top charts.

Rating breakdown

5
235
4
47
3
47
2
31
1
15