How many frames are in 10 seconds at 30 fps?
300 frames
10 seconds of 30 fps footage holds exactly 300 frames. Frame numbering starts at zero, so they run from frame 0 to frame 299 — timecode 00:00:00:00 through 00:00:09:29.
How that is worked out
frames = seconds × fps
10 × 30 = 300 frames
Worth knowing
- The count scales with the clip: 5 seconds is 150 frames and 20 seconds is 600 frames.
- Each frame holds the screen for 33.333 ms at 30 fps, so trimming a single frame changes the running time by that much.
- The frames field of the timecode runs 00 to 29 before the seconds field moves, so the count ends at 00:00:09:29 rather than at a round number.
- Counting 300 timecode labels at 29.97 fps instead takes 10.010 real seconds, because that rate is 30 slowed by 1000/1001. Read the other way round, a real 10 seconds at 29.97 fps holds 300 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 | 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 — this page | 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 30 fps
| Duration | Frames | Last frame |
|---|---|---|
| 2 seconds | 60 | 00:00:01:29 |
| 3 seconds | 90 | 00:00:02:29 |
| 5 seconds | 150 | 00:00:04:29 |
| 10 seconds — this page | 300 | 00:00:09:29 |
| 15 seconds | 450 | 00:00:14:29 |
| 20 seconds | 600 | 00:00:19:29 |
| 30 seconds | 900 | 00:00:29:29 |
Need it for other values?
Turn an HH:MM:SS:FF timecode into a total frame count at your project frame rate.