Smart Ruler: Measure Tool

Ruler is a free, accurate ruler and measuring tape app. Measure length, distance, and objects in cm, mm, and inch right on your screen. 📏 Screen ruler & tape measure — clear markings in cm / mm / inch. 🔧 Calibrate with a credit card (85.6 mm) for precise measurement. 📐 Angle & protractor mode for DIY, crafts, and school. ▦ Area measurement for rooms and surfaces. 🌍 15 languages supported. English, Spanish, Portuguese, German, French, Japanese, Korean, Italian, Chinese (Simplified), Chinese (Traditional), Turkish, Hindi, Indonesian, Vietnamese, Thai. The simplest pocket ruler, tape measure, angle, and area measuring app — always with you.