TC Calc
A browser-based timecode calculator for adding, subtracting and converting timecode values. Supports multiple frame rates and works directly in any browser — no installation required.
How it works
Add & subtract
Add or subtract two timecode values and get the result instantly. Useful for calculating durations, offsets, and cue positions.
TC to frames / seconds
Convert any timecode to total frames or seconds. Enter a TC value and get all three representations at once.
Frames / seconds to TC
Convert a frame count or a duration in seconds back to a timecode value at the selected frame rate.
Frame rate support
Supports 24, 25, 30 and 50 fps. Frame rate can be changed at any time — all values update automatically.
No installation
Runs entirely in the browser. No app to install, no account needed. Works on desktop, tablet, and phone.
Get in touch
Found a bug or have a feature request? Open an issue or start a discussion on GitHub.