Audio Crossfade Duration Planner
Calculate final duration when equal overlap is used between clips.
Your inputs
Calculation results
Formula & assumptions
Final duration = count × clip duration − (count−1) × overlap.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Audio Crossfade Duration Planner
Calculate final duration when equal overlap is used between clips.
- Enter clip count, duration per clip, crossfade overlap using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Clip count: 5 clips Duration per clip: 30 seconds Crossfade overlap: 2 seconds Final duration · seconds: 142 Transitions: 4 Total overlap removed · seconds: 8
Questions & answers
What does Audio Crossfade Duration Planner calculate?
Calculate final duration when equal overlap is used between clips.
Which units should I enter?
Clip count uses clips. Duration per clip uses seconds. Crossfade overlap uses seconds. Convert values to these units before calculating.
Which formula does it use?
Final duration = count × clip duration − (count−1) × overlap.
What does the included example show?
Clip count: 5 clips; Duration per clip: 30 seconds; Crossfade overlap: 2 seconds. Result: Final duration · seconds = 142; Transitions = 4; Total overlap removed · seconds = 8.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
Related tools
A useful next step for your task.
Audio & VideoAudio Loop Seam PlannerPlan loop duration after removing a tail overlap for a seam crossfade.
Audio & VideoBeat Sample Grid CalculatorCalculate the fractional samples per beat and whole-sample timing error.
Audio & VideoVideo EditorHighly recommendedEdit short videos locally with a timeline, clip trims, transitions, photos, music, titles, captions and image/video overlays. Save projects and…
Audio & VideoAmplitude to Decibels CalculatorCompare positive amplitudes as a gain in decibels.
Help improve this tool
Report a problem or suggest an improvement
Describe the issue without pasting private tool input. Feedback goes to our admin inbox.