35 mm at 35 mm ≈ 54°
On full frame, a 35 mm lens yields roughly a 54° horizontal FOV—a classic street and documentary look.
Street staple
Field of View Calculator
Inputs
Add a distance to see frame coverage width/height at that spot.
Results
Horizontal FOV:
Vertical FOV:
Diagonal FOV:
How to use this field of view calculator
- Select a sensor preset. Full frame vs. Super35 vs. MFT radically changes angle of view.
- Enter your focal length in millimeters. Doubling focal length roughly halves your horizontal FOV.
- Optionally add subject distance. Coverage readout tells you how wide/tall the frame is at that spot.
- Use it for game FOV matching. Compare your real camera angle with vertical FOV sliders in engines.
- Plan for aspect changes. Switching from 16:9 to 9:16 shifts horizontal vs. vertical FOV asymmetrically.
5 Fun Facts about Field of View
Doubling focal length halves FOV
Keep the sensor the same: jumping from 25 mm to 50 mm cuts your horizontal view almost in half.
Quick mental math
Vertical FOV matters in games
Many engines expose vertical FOV; converting to horizontal depends on the aspect ratio in use.
HUD math
Aspect ratio skews coverage
Changing from 16:9 to 9:16 keeps diagonal FOV similar but dramatically narrows your horizontal reach.
Frame flips
Ultra-wides stretch edges
Extreme angles can distort faces near the frame edge; knowing coverage helps you block around it.
Edge caution
About this field of view calculator
This calculator translates focal length and sensor size into clear angles of view. Enter your lens and choose a sensor preset to see horizontal, vertical, and diagonal FOV in degrees. If you supply a subject distance, the tool also shows the real-world frame coverage, which is helpful for blocking, VFX plates, and location scouting. Everything runs locally in your browser—no uploads, no tracking.
In filmmaking, matching FOV across cameras or between practical and CG shots is critical. The calculator lets you quickly sanity-check that a 25 mm on Super35 matches roughly a 35 mm on full frame. For photographers, it can help decide whether a location is wide enough for a group shot or whether you’ll need to step back. Game developers and streamers can also use it to map in-game FOV settings to real camera references for more natural motion.
Because aspect ratio impacts horizontal and vertical angles differently, the tool’s coverage readout is useful when switching between 16:9 and 9:16 deliverables. Knowing the actual width and height at a given distance helps you avoid boom poles or C-stands creeping into frame and ensures set dressing fits within shot boundaries.
Once the page is loaded it works offline, making it handy on set with spotty connectivity. Keep it bookmarked with your focal length charts and use it alongside our depth-of-field calculator to plan sharp, well-framed shots every time.