Online Ruler
Measure objects on your screen with an accurate digital ruler.
Ruler Settings
Customize your ruler's display and measurement units
Note: Actual size calibration may vary between devices. This ruler uses a detected screen resolution of approximately 96 pixels per inch.
How to use this ruler
- Choose your preferred measurement unit (centimeters or inches).
- Select the orientation that works best for your measurement needs.
- Adjust the scale if needed to match physical objects.
- Place the object you want to measure against your screen.
- Align the edge of the object with the 0 mark on the ruler.
- Read the measurement where the other edge of the object ends.
For best results, calibrate the ruler by measuring a known object first, and adjusting the scale if necessary.
Related Tools
Ruler Tool: Your Complete Solution
Our Ruler Tool helps you measure the dimensions of objects on your screen with precision. Whether you need to check pixel distances, align elements, or plan layouts, this tool provides an easy-to-use digital ruler right in your browser.
Why is it Useful?
Accurate measurement is essential for design, development, and layout tasks:
- Check pixel distances between elements on web pages or images
- Helps graphic designers and developers maintain alignment and spacing
- Useful for precise layout planning and interface design
- Saves time by eliminating guesswork in measurements
- Works without any software installation or plugins
Key Features
- Pixel-Perfect Measurement: Measure distances with pixel accuracy
- Horizontal and Vertical Rulers: Measure width and height easily
- Drag and Resize: Move and adjust the ruler for custom measurements
- Clear Interface: Simple and distraction-free design
- Browser-Based: Use on any device without downloads
How to Use?
- Open the Ruler Tool in your browser
- Drag the ruler over the area or object you want to measure
- Resize or move the ruler to cover the exact measurement area
- Read the measurement displayed in pixels
- Use both horizontal and vertical rulers as needed
Use Cases
This Ruler Tool is ideal for:
- Web Designers & Developers: Ensure pixel-perfect layouts
- Graphic Designers: Measure and align elements precisely
- Photographers: Check image dimensions and crop areas
- Students & Educators: Learn and teach measurements digitally
- Anyone: Quickly measure objects or distances on screen
Benefits
- Highly accurate: Measures distances with pixel precision
- Easy to use: Simple drag-and-drop interface
- Portable: Browser-based — no installation required
- Time-saving: Quickly get measurements without extra tools
- Free and secure: No data collection or registration needed
Frequently Asked Questions
Can I measure both horizontal and vertical distances?
Yes, the tool supports both horizontal and vertical rulers.
Do I need to download or install anything?
No, it works entirely within your browser with no downloads.
Is the measurement accurate?
Yes, the ruler measures distances in pixels with high precision.
Can I use this tool on mobile devices?
Yes, it is accessible on most mobile browsers as well.
Is this tool free to use?
Absolutely, the Ruler Tool is completely free and requires no sign-up.