How long is 500 frames at 24 fps?
20.833 seconds
500 frames at 24 fps runs for 20.833 seconds. Counting from frame 0, the last frame is number 499 at timecode 00:00:20:19.
How that is worked out
seconds = frames ÷ fps
500 ÷ 24 = 20.833 seconds
Worth knowing
- In milliseconds that is 20,833.3 ms, since one frame at 24 fps lasts 41.667 ms.
- Halving and doubling the count does the same to the running time: 250 frames is 10.417 s and 1,000 frames is 41.667 s.
- An NLE shows the out point one frame past the last frame, so a 500 frame clip starting at 00:00:00:00 ends on 00:00:20:19 and its out point reads 00:00:20:20.
- The same 500 frames at 23.976 fps run 20.854 seconds — 0.021 seconds longer, which is the 1000/1001 pulldown and the reason a mixed-rate conform drifts.
500 frames at every standard frame rate
| Frame rate | Duration | Ends on | Frame duration |
|---|---|---|---|
| 23.976 fps | 20.854 s | 00:00:20:19 | 41.708 ms |
| 24 fps — this page | 20.833 s | 00:00:20:19 | 41.667 ms |
| 25 fps | 20.000 s | 00:00:19:24 | 40 ms |
| 29.97 fps | 16.683 s | 00:00:16:19 | 33.367 ms |
| 30 fps | 16.667 s | 00:00:16:19 | 33.333 ms |
| 50 fps | 10.000 s | 00:00:09:49 | 20 ms |
| 59.94 fps | 8.342 s | 00:00:08:19 | 16.683 ms |
| 60 fps | 8.333 s | 00:00:08:19 | 16.667 ms |
Timecode at an NTSC rate counts the labels of its integer neighbour, so 23.976 and 24 end on the same label — the NTSC version simply takes 1.001 times as long to get there.
Nearby frame counts at 24 fps
| Frame count | Duration | Ends on |
|---|---|---|
| 120 frames | 5.000 s | 00:00:04:23 |
| 240 frames | 10.000 s | 00:00:09:23 |
| 300 frames | 12.500 s | 00:00:12:11 |
| 500 frames — this page | 20.833 s | 00:00:20:19 |
| 600 frames | 25.000 s | 00:00:24:23 |
| 1,000 frames | 41.667 s | 00:00:41:15 |
| 1,500 frames | 62.500 s | 00:01:02:11 |
Need it for other values?
Turn a frame count into hours, minutes, seconds and frames, plus the real duration in milliseconds.