Editorial calculator · free in CineMath
Target Length Calculator
The exact retime percentage that fits a clip into a target duration.
Target Length gives the retime you need to fit a clip into a slot: the speed percentage (or duration percentage) worked out on total frame counts.
Worked examples
| Clip | Target | Frame rate | Speed |
|---|---|---|---|
| 02:00:00:00 | 01:50:00:00 | 24 | 109.09% |
| 00:30:15:00 | 00:30:00:00 | 29.97 | 100.83% |
| 00:02:30:00 | 00:02:00:00 | 24 | 125% |
What you enter
- Mode: Speed or Duration
- Frame rate, including drop-frame, or custom
- Clip length and target length (timecode)
What you get
- Speed % or duration %
- Frame counts for the clip and the target
- A warning beyond 2× or 0.5×
How CineMath works it out
- Speed % = clip frames ÷ target frames × 100
- Duration % = target frames ÷ clip frames × 100
Guides
More Editorial calculators
- Aspect RatioPixel dimensions for any aspect ratio, anamorphic desqueeze, and fit or fill to a delivery size.
- Speed ChangePlayback speed and running-time change when footage plays at a different frame rate.
- Timecode CalculatorAdd, subtract, multiply and divide timecode, and convert between timecode and frames.
- Film ↔ TimeConvert film footage to running time and back, for ten formats from Super 8 to 15-perf IMAX.
- Time LapseSet the intervalometer: shot interval, frame count and speed-up for any time-lapse.