Ruler - Screen Ruler, cm inch

Measure the objects around you right on your screen — ruler, protractor and bubble level in one app. Ruler (NeoRuler) turns your smartphone screen into a real measuring tool. With no extra hardware you can measure lengths in centimeters and inches, check angles with the protractor, and level shelves or frames with the bubble level. Every measurement can be saved to your history for later. ■ Key features [Length] • On-screen ruler — show a scale on your display and measure objects directly • Measurement markers — measure the distance between two points; tap the ruler to move a marker fast • Single-line ruler — measure a length on one line, or measure width and height to get the area automatically • cm / inch scales (choose inch with 1/8 or 1/10 divisions) • Screen calibration — match the scale to your exact device using a real object such as a credit card [Angle] • Protractor — drag two arms on the screen to measure an angle and save the result [Level] • Bubble level — check tilt in real time with zero-point calibration. Perfect for hanging frames, shelves and furniture [Unit conversion] • Length converter — from nanometers to miles; convert from a dropdown, copy the result, swap sides [History & sharing] • Measurement history — the last 200 measurements are saved automatically; rename, copy or delete them • Share results — turn a measurement into an image card and share it in messengers or social apps [Comfort] • Keep screen on while measuring · haptic feedback • Landscape-optimized — measure longer lengths on a wide screen • Dark mode — comfortable to use in low light ■ Great for • Quickly measuring something when no tape measure or ruler is around • Checking furniture or parcel sizes before ordering online • Hanging frames and shelves perfectly level • DIY, woodworking and interior projects that need angles • Working with both cm and inch, or converting units often • Students and hobbyists who measure small things often ■ Why NeoRuler • No camera or location permission required • Measuring works offline, without an internet connection • Screen calibration compensates for different display sizes • Ruler, protractor, level, unit converter and history in a single app — no need to install several tools • Free to use, with an optional in-app purchase to remove ads ※ The on-screen ruler measures within the size of your screen. For accurate results, calibrate the scale the first time you use the app. Start using your phone as a ruler today!