This utility app helps users calculate the correct projection lens or distance for video projection events. It supports different aspect ratios and unit systems, with pro features for saving unlimited events.

10+ similar apps compared and reviewed
Whether you want more options like Projector Lens Calculator or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.






This utility app helps users calculate the correct projection lens or distance for video projection events. It supports different aspect ratios and unit systems, with pro features for saving unlimited events.






This utility app helps designers, architects, and photographers calculate and apply the golden ratio in their work. It offers tools for proportion calculations, Fibonacci sequences, and design presets for spacing, typography, and image cropping.












Calculate the exact amount of yarn needed for your weaving projects. This tool accounts for project size, heddle settings, and fabric shrinkage to ensure you have the right amount of material for your floor or table loom.


This physics and math tool quickly converts between lumens, lux, and candelas. It provides instant calculations with copyable results and includes reference formulas. Optimized for everyday use, it supports high precision and various units.