RC Rollout Calculator

RC Rollout Calculator is the essential tool for every RC car enthusiast. Quickly calculate the perfect rollout, find the right pinion gear, and fine-tune your gear ratio — all in one app. Features: • Rollout Calculator: Select spur gear, pinion gear, and tire diameter to instantly calculate your rollout value. • Pinion Finder: Enter your desired rollout, spur gear, and tire diameter to find the matching pinion gear. • Interactive Tables: View rollout values across different spur/pinion and tire/pinion combinations at a glance. • Highlighted Selection: Your current setup is highlighted in the table so you can easily compare nearby gear combinations. • Two Table Modes: Switch between Spur/Pinion and Tire/Pinion tables to explore different setups. • Portrait & Landscape: Fully optimized for both orientations — compact pickers in portrait, side-by-side layout in landscape. • No Ads, No Subscription: A simple, focused tool that just works.