Timecode Calculator
Convert SMPTE timecode and frame counts.
Timecode and frames
Editors count in SMPTE timecode — HH:MM:SS:FF — where the frame field depends on the project rate. At 24 fps, one second is frame 24, and this converts timecode to a total frame count and back.
Editors use it to find the exact frame of a cut, convert a runtime into a frame count for a render estimate, or check that two clips share the same rate before joining them.
Drop-frame timecode
29.97 fps uses drop-frame notation to stay aligned with the clock, which the tool accounts for. Everything is computed on your device and never uploaded.
Frequently Asked Questions
How does the timecode calculator work?
The calculator converts HH:MM:SS:FF to total frames, applies frame math, and converts back to timecode. At 24 fps, one second is 24 frames.
When should I use this tool?
Use it for edit notes, animation offsets, subtitle timing, and frame-accurate production estimates.
What is the main limitation?
This is non-drop-frame timecode; NTSC drop-frame workflows need a dedicated broadcast calculator.
Is this converter private?
Yes. It runs entirely in your browser, so your values are not uploaded or stored.
More free browser utilities for conversion, formatting, and technical cleanup.