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Free Tool

Field of View Calculator

See exactly what your lens captures on any sensor. Enter your focal length and sensor size to get horizontal, vertical and diagonal FOV in degrees, plus the full-frame equivalent.

Sensor & lens
Video mode crop
Ctrl+Enter to calculate (Cmd+Enter on Mac)
Example Output
Full-frame equivalent
24mm
Equivalent focal length
Field of view
73.7°
Horizontal
53.1°
Vertical
84.1°
Diagonal
Looks like: Wide
Relative width

Example: Full-frame sensor with a 24 mm lens. Enter your own values and click Calculate to see your personalised result.

Full-frame equivalent
--
Equivalent focal length
Field of view
--
Horizontal
--
Vertical
--
Diagonal
Looks like: --
Relative width

How to Use

Step 1
Pick your sensor
Choose a preset from the dropdown or enter a custom crop factor. Common presets cover Full Frame, APS-C, Micro Four Thirds and 1-inch sensors.
Step 2
Enter focal length
Type your lens focal length in millimetres. If your camera crops further in video mode (common in 4K), toggle it on and enter the extra crop factor.
Step 3
Read the results
You will see horizontal, vertical and diagonal FOV in degrees, the full-frame equivalent focal length, and a "looks like" label from ultra-wide to tight.

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