Field of View Calculator
Calculate the field of view for different focal lengths
About this calculator
The Field of View Calculator determines how much of a scene your camera can capture based on focal length and sensor size. This tool is essential for photographers, videographers, and cinematographers who need to plan shots, select appropriate lenses, or understand framing before shooting. By calculating horizontal, vertical, and diagonal field of view angles, you can make informed decisions about lens selection and camera positioning for optimal composition.
How to use
Enter your camera's sensor dimensions (width and height in millimeters) and the focal length of your lens. The calculator will instantly compute the horizontal, vertical, and diagonal field of view angles in degrees, helping you understand exactly how much of your scene will be captured in the frame.
Frequently asked questions
What is field of view in photography?
Field of view is the angular extent of the scene captured by your camera, determined by lens focal length and sensor size. It's measured in degrees.
How does focal length affect field of view?
Shorter focal lengths provide wider field of view, while longer focal lengths create narrower field of view with more magnification of distant subjects.
Why do I need to know my sensor size?
Sensor size directly affects field of view calculations. Different camera formats have varying sensor dimensions, which impact the final field of view angle.