Timecode Calculator
Add and subtract SMPTE timecodes (HH:MM:SS:FF) at 24/25/30/60 fps and convert total frames to timecode. Frame-accurate math for video editors, free in-browser.
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What is Timecode Calculator?
The Timecode Calculator performs frame-accurate arithmetic on SMPTE timecodes (HH:MM:SS:FF) at 24, 25, 30, and 60 fps. Add clip lengths, subtract to find differences, and convert raw frame counts into readable timecodes - all instantly in your browser.
Key Benefits
- Frame-accurate add and subtract across four standard frame rates
- Instant frames-to-timecode conversion for frame-count workflows
- Live validation keeps the frame field within the frame rate
- Free, private, and completely client-side
Common Use Cases
- •Totting up clip durations for a rough-cut timeline
- •Finding the gap between two points in an edit
- •Converting exported frame counts into timecode for reports
- •Planning segment lengths for broadcast or YouTube formats
- •Checking sync math between audio and video sessions
Calculate Timecodes
- Pick the frame rate: Select 24, 25, 30, or 60 fps to match your footage so frame math stays accurate.
- Enter both timecodes: Type timecodes in HH:MM:SS:FF form. The frame field must be smaller than the frame rate.
- Choose the operation: Pick A + B to add durations or A − B to find the difference; the result renders as a proper timecode.
- Convert frame counts: Enter a raw frame total in the converter to see the equivalent HH:MM:SS:FF timecode at the selected frame rate.
Key Features
- Add and subtract SMPTE timecodes with frame-accurate math
- Standard frame rates: 24, 25, 30, and 60 fps
- Frames-to-timecode converter for frame-count workflows
- Validates frame field against the selected frame rate
- Handles negative results of subtractions with a minus sign
- Instant client-side results - no account, no upload