FPS Calculator for Video
Solve the third value from any two: frames per second, total frames, or duration. Use it for video timelines, animation timing, stop-motion planning, and frame-count conversions.
Fill in any two fields - the third is calculated automatically.
How to calculate FPS, frames or duration
- 01Fill in any two of the three fields: FPS, duration, total frames.
- 02The missing value is calculated instantly as you type.
- 03Adjust inputs to explore alternatives - results update live.
Calculator features
Frames from FPS and duration, duration from frames and FPS, or FPS from frames and duration - one tool, all three.
Durations in seconds, minutes or hours, converted correctly behind the scenes.
No calculate button - every result updates the moment an input changes.
Related free tools
Frequently asked questions
How many frames is 10 seconds at 30fps?+
300 frames. Enter 30 for FPS and 10 seconds of duration - the total frames field shows 300.
How do I calculate FPS?+
Divide the total number of frames by the duration in seconds. Enter any two of FPS, total frames, and duration to solve the missing value automatically.
How do I find a clip's frame rate?+
If you know its total frames and duration, enter both - FPS is computed from them.
Does fractional FPS like 29.97 work?+
Yes, decimal values are supported - enter 29.97 and results use it exactly.
Related articles
FPS Calculator for Video: Frames & Time
Use an FPS calculator for video to convert frames per second, total frames, and duration for animation, editing, stop motion, and delivery planning.
How to Calculate Video Bitrate
Learn how to calculate video bitrate from target file size, duration, and audio, then estimate the output size before exporting for streaming or uploads.