Updated Feb 6, 2026 · v2.8.3
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.
6 years on Google Play
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