Measure 14
Turn the screen into a ruler, protractor or level; calibrate with a card or coin for true size
Measure 11
- Screen Measuring ToolsUse your screen as a ruler. Calibrate once with a card or coin and measure at real size
- Online Ruler — actual size cm and inchAn actual size cm, mm and inch ruler for your phone or monitor. Calibrate with a bank card or coin, measure between two cursors and add up long objects
- Online ProtractorMeasure an angle with a protractor on your screen, or on top of a photo
- Actual Size PreviewEnter width × height and see it at real size on your screen, handy before you buy online
- Bubble LevelLay your phone down to see the tilt
- Photo & Paper Sizes at Real SizeSee ID photo, passport photo and paper sizes as real-size outlines on your screen
- Circle Diameter GaugeHold a round object against the screen, match the circle, and read its diameter, radius, circumference and nearest standard size
- Bolt & Nut Size FinderHold a bolt against the screen to find its size (M5, M6, 1/4-20…), length, and the hex key or wrench that fits
- Pipe & Fitting Size FinderMeasure a pipe's outside diameter and get its nominal size (1/2 in, DN15, 15A…)
- Ring Size FinderPlace a ring you own on the screen, match the circle, and get its US, UK, EU and Asian size
- Coin Battery IdentifierHold a coin or button cell against the screen to tell CR2032 from CR2025 and other sizes
Also on this shelf 3
- Sound Level MeterSee how loud it is around you through the microphone. Readings are relative, not calibrated decibels
- Scale Bar Measurement ToolMeasure lengths, areas and angles on SEM and microscope images using the scale bar. Images never leave your device
- Scale CalculatorConvert between real size and drawing, map or model size at any scale, or find the scale from two lengths