Frame-rate conversion in HD & UHD
NTSC and PAL rate families, 25/50 vs 29.97/59.94, and the difference between preserving frames and preserving duration.
Read guideThe timecode calculator for film & TV
Calculate timecode, compare formats and keep the numbers close.
One-time purchases. Mac and iPhone/iPad sold separately.iPhone/iPad app listed as Timecode on the App Store.

Technical field notes for mixed frame rates, broadcast timing and digital delivery.
NTSC and PAL rate families, 25/50 vs 29.97/59.94, and the difference between preserving frames and preserving duration.
Read guideUnderstand 29.97 and 59.94 counting, skipped labels and the relationship between timecode and elapsed time.
Read guide24, 23.976 and 25 fps: conform speed, pulldown, audio timing and scanned-film workflows.
Read guideChoose your workspace
The same focused approach to timecode, with an app for each way you work.
macOS
A compact native calculator for the edit suite. Keyboard input, format comparisons and a history you can export.
Get for MacOne-time purchase. iPhone/iPad app sold separately.
iOS & iPadOS
Timecode and film calculations within reach. Compare formats, review your calculations and pass on a result.
Get for iPhone & iPadListed as Timecode on the App Store. Mac app sold separately.
Made for post-production
Choose your input and three additional formats. Compare timecode, frames and film units as you calculate.
Add and subtract timecodes, multiply or divide values, then review the steps in calculation history.
Copy or share a calculation when the numbers need to leave your desk. On Mac, export history as CSV.