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Shutter Angle Calculator
Convert between shutter angle, frame rate, and shutter speed.
fps
°
How it works
Shutter speed = shutter angle ÷ (360 × frame rate). A 180° shutter exposes each frame for half of the frame time and is the film standard, giving natural-looking motion. Smaller angles look crisper and choppier, and larger angles look smoother and blurrier. Cine cameras use angles, while stills cameras use speeds, so this tool bridges the two. Example: At 24 fps, a 180° shutter equals 1/48 s, which is 20.8 ms of exposure per frame.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.