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DIY Cost Tools

Video Timecode Calculator

Convert non-drop-frame hours, minutes, seconds, and frame fields into total frames and elapsed seconds.

Use consistent units exactly as labeled. Decimal and scientific notation are accepted for non-integer fields; blanks, commas, fractions and non-finite entries are rejected.

Timecode01:02:03:12
Total frames111,702
Elapsed seconds3723.4 sec
Elapsed minutes62.05666667 min

The displayed results apply to the default example. Enable JavaScript to calculate other inputs.

How to use this calculator

  1. Replace the example values with your own measurements, schedule, prices, or media settings.
  2. Keep each value in the unit printed beside its field.
  3. Select Calculate and review every result together with the assumptions below.

Formula and method

Total frames = ((hours × 3,600 + minutes × 60 + seconds) × fps) + frame field.

Calculations run in your browser. Results are hidden whenever an input changes or validation fails, preventing an old answer from being mistaken for the current calculation.

Worked example

Hours = 1; Minutes = 2; Seconds = 3; Frame field = 12; Whole-number frame rate = 30 fps. The calculator returns Timecode = 01:02:03:12; Total frames = 111,702; Elapsed seconds = 3723.4 sec; Elapsed minutes = 62.05666667 min.

The worked example uses the same default values shown in the interface, so the displayed result and explanation can be checked directly.

Limitations

This calculator uses whole-number, non-drop-frame timecode. It does not implement SMPTE drop-frame numbering for 29.97 or 59.94 fps.

Use the result as a planning estimate. Confirm prices, policies, equipment ratings, units and professional requirements that apply to your situation.

Frequently asked questions

Why must the frame field be below the fps value?

Frame numbering within each second starts at zero and ends one frame below the whole-number frame rate.

Why does the calculator reject my entry?

Each field shows its supported range. Whole-number fields reject decimals, and all fields reject blanks, words, comma-formatted numbers, fractions and non-finite values.

How should I round the result?

Keep extra digits while planning, then round to the precision supported by your inputs, package sizes, billing rules or equipment settings.

Review notes and reference

Reviewed October 4, 2026. The formula was checked against the displayed worked example. The script was tested for defaults, field boundaries, invalid formats, condition-specific errors and recovery after an error. Reference: NIST guidance on bits, bytes, and binary prefixes. Explanations and examples are original.

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