Video Film Calculators — Creative
Video format and timing: aspect ratio and frame rate conversion, slow motion frame rates, lens focal length, and subtitle timing. Slow motion quality is set at capture by the shooting frame rate, not in the edit, which the tool makes explicit.
All Video Film Calculators
Convert video aspect ratios and calculate letterboxing or pillarboxing dimensions.
Convert between frame rates (24, 25, 30, 60 fps) and calculate time remapping.
Calculate the required focal length from subject distance, sensor size, and desired framing.
Calculate the required frame rate to achieve desired slow motion factor at output fps.
Calculate subtitle display duration from word count and reading speed.
Calculate optimal video bitrate for streaming platforms based on resolution and frame rate.
Calculate video file size from resolution, frame rate, bit rate, and duration.
Calculate storage needs from video resolution, frame rate, codec, and recording duration.
About Video Film Calculators
Video format and timing: aspect ratio and frame rate conversion, slow motion frame rates, lens focal length, and subtitle timing. Slow motion quality is set at capture by the shooting frame rate, not in the edit, which the tool makes explicit.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common video film scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 8 tools: Aspect Ratio Converter, Frame Rate Converter, Lens Focal Length Calculator, Slow Motion Frame Rate Calculator, Subtitle Timing Calculator, Video Bitrate Calculator, Video File Size Calculator, Video Storage Calculator — Resolution, Codec & Length. Each calculator is free to use with no signup required.