Measure Angle
Measure angles in images with precision. Click three points to measure any angle. Perfect for geometry, architecture, construction, design work, and educational purposes.
or drop image here or paste
Measure angles in images with precision. Click three points to measure any angle. Perfect for geometry, architecture, construction, design work, and educational purposes.
or drop image here or paste
Click three points on the image: first point, vertex (corner), then third point. The angle will be measured at the vertex. Drag points to adjust. Right-click to delete.
No measurements yet. Click on the image to start.
Measure Angle is a free online tool for accurately measuring angles in photographs and images. Click three points to define any angle and instantly see the precise degree measurement displayed on your image. Perfect for geometry homework, architecture plans, construction site documentation, engineering drawings, and design verification work. The angle measurement tool calculates interior angles from 0° to 360° with visual arc indicators you can download.
Upload your image containing the angle you want to measure. Click to place three points: first on the angle vertex (center point), second on one arm of the angle, and third on the other arm to complete the measurement. The tool instantly calculates and displays the angle in degrees with a colored arc showing the measured angle visually. Drag points to adjust positioning for more accurate measurements. Add multiple angle measurements to the same image by clicking "New Measurement" to analyze different angles simultaneously. Download your annotated image as PNG, JPG, or WebP with all angle measurements and arc indicators permanently visible.
Measure angles in architectural drawings, blueprints, and construction photos with degree-level precision. Verify roof pitch angles, wall corners, stair angles, and structural joints directly from site photographs. Calculate angles in mechanical parts, furniture designs, or woodworking projects before cutting materials. The angle protractor works on scanned technical drawings, smartphone photos of physical objects, or digital design mockups. Color-coded measurement arcs make it easy to identify which angle is which when measuring multiple angles in complex images.
Use the angle measurer for geometry and trigonometry homework when solving angle problems from textbook photos or worksheet images. Architects and engineers measure angles in site survey photos, existing building documentation, or competitor product analysis. Contractors verify installation angles of solar panels, satellite dishes, accessibility ramps, or structural supports using job site photographs. DIY enthusiasts measure cutting angles for crown molding, picture frame corners, or furniture joinery from reference images. Physical therapists document joint angles in patient assessment photos for range-of-motion tracking and treatment progress reports.
Export measured images at full original resolution with angle values and arc indicators automatically scaled for visibility on any image size. PNG format preserves measurement clarity with crisp text and smooth arcs for professional reports and presentations. WebP format reduces file size by 30-50% while maintaining readable angle measurements - ideal for uploading annotated images to project management software or sharing via email. All downloads include measurement overlays permanently embedded for documentation purposes, quality assurance records, and educational materials.