How many frames are in 10 seconds at 24 fps?
240 frames
10 seconds of 24 fps footage holds exactly 240 frames. Frame numbering starts at zero, so they run from frame 0 to frame 239 — timecode 00:00:00:00 through 00:00:09:23.
How that is worked out
frames = seconds × fps
10 × 24 = 240 frames
Worth knowing
- The count scales with the clip: 5 seconds is 120 frames and 20 seconds is 480 frames.
- Each frame holds the screen for 41.667 ms at 24 fps, so trimming a single frame changes the running time by that much.
- The frames field of the timecode runs 00 to 23 before the seconds field moves, so the count ends at 00:00:09:23 rather than at a round number.
- Counting 240 timecode labels at 23.976 fps instead takes 10.010 real seconds, because that rate is 24 slowed by 1000/1001. Read the other way round, a real 10 seconds at 23.976 fps holds 240 frames.
10 seconds at every standard frame rate
| Frame rate | Frames | Frame duration | Last frame |
|---|---|---|---|
| 23.976 fps | 240 | 41.708 ms | 00:00:09:23 |
| 24 fps — this page | 240 | 41.667 ms | 00:00:09:23 |
| 25 fps | 250 | 40 ms | 00:00:09:24 |
| 29.97 fps | 300 | 33.367 ms | 00:00:09:29 |
| 30 fps | 300 | 33.333 ms | 00:00:09:29 |
| 50 fps | 500 | 20 ms | 00:00:09:49 |
| 59.94 fps | 599 | 16.683 ms | 00:00:09:58 |
| 60 fps | 600 | 16.667 ms | 00:00:09:59 |
Durations here are real seconds. Over 10 seconds the 1000/1001 NTSC slowdown is too small to change the count — 23.976 fps holds the same 240 frames as 24 fps — but the gap grows to a full frame within a minute.
Nearby durations at 24 fps
| Duration | Frames | Last frame |
|---|---|---|
| 2 seconds | 48 | 00:00:01:23 |
| 3 seconds | 72 | 00:00:02:23 |
| 5 seconds | 120 | 00:00:04:23 |
| 10 seconds — this page | 240 | 00:00:09:23 |
| 15 seconds | 360 | 00:00:14:23 |
| 20 seconds | 480 | 00:00:19:23 |
| 30 seconds | 720 | 00:00:29:23 |
Need it for other values?
Turn an HH:MM:SS:FF timecode into a total frame count at your project frame rate.