Timecode Calculator
Professional timecode calculator for video editors. Add, subtract, multiply, divide timecodes. Convert between frames, seconds, and timecode format. Supports all standard frame rates including drop-frame.
Selected: 24 (Film)
Result
The Timecode Calculator is a professional, frame-accurate tool designed specifically for video editors, filmmakers, and post-production professionals. Whether you
📖 How to Use
Calculator Mode
- Select your frame rate from the dropdown (23.976, 24, 25, 29.97 DF, 30, etc.)
- Choose your operation: Add (+), Subtract (-), Multiply (×), or Divide (÷)
- Enter timecodes in HH:MM:SS:FF format (e.g., 01:30:15:12)
- Results appear instantly with frame-accurate precision
- Click "Copy" to copy the result to clipboard
Converter Mode
- Select your frame rate
- Enter a value in any format (timecode, frames, or seconds)
- View instant conversions to all three formats
- Toggle between display options (show/hide zeros)
Duration Mode
- Enter start timecode (IN point)
- Enter end timecode (OUT point)
- Duration is calculated automatically
- View results in timecode, frames, and seconds
💡 Pro Tips:
- Use Tab key to quickly navigate between fields
- Press Enter to perform calculation
- Press Esc to clear all fields
- For drop-frame rates, use semicolons (;) in timecode format: HH:MM:SS;FF
⚙️ How It Works
Understanding Timecode
Timecode is a standardized format for identifying specific frames in video content. The format HH:MM:SS:FF represents:
- HH - Hours (00-23)
- MM - Minutes (00-59)
- SS - Seconds (00-59)
- FF - Frames (00 to frame rate - 1)
Frame Rate Conversion
The calculator converts all timecodes to total frames for accurate arithmetic, then converts back to timecode format:
- Parse Input: Break down HH:MM:SS:FF into components
- Convert to Frames: Total frames = (hours × 3600 + minutes × 60 + seconds) × FPS + frames
- Perform Operation: Add, subtract, multiply, or divide frame counts
- Convert Back: Calculate hours, minutes, seconds, and frames from total
Drop-Frame Timecode
Drop-frame timecode (29.97 DF and 59.94 DF) compensates for NTSC
❓ Frequently Asked Questions
What is the difference between drop-frame and non-drop-frame timecode?
Which frame rate should I use?
Can I add timecodes from different frame rates?
How accurate are the calculations?
What formats can I input?
Can I use this for audio post-production?
Why does my timecode show semicolons instead of colons?
How do I calculate overlap between two clips?
Comments & Feedback
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💡 Quick Reference
HH:MM:SS:FF
HH:MM:SS;FF
- • 24 fps - Film/Cinema
- • 25 fps - PAL/European
- • 29.97 DF - NTSC/US TV
- • 30 fps - Web/Digital
- • 60 fps - High Frame Rate
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