ENGINEERING TOOLS

SMPTE Timecode Calculator

Professional frame-accurate arithmetic for broadcast and post-production. Supports SMPTE 12M standards for all common frame rates including 29.97 and 59.94 Drop-Frame (DF).

25 FPS
READY
00:00:00:00
CROSS-RATE PREVIEW (24fps) 00:00:00:00
TOTAL FRAMES 0
DURATION 00:00.00
SMPTE 12M COMPLIANT • BROADCAST GRADE

The Tape (History)

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Project Frame Rate

Cross-Rate Preview

Real-World Use Cases

Live Production

Calculate how many frames of pre-roll are needed for a VT insert at 50fps. To ensure your cameras and vision mixer are phased correctly for this insert, follow our broadcast sync guide on Genlock.

Post-Production

Convert clip durations between project frame rates when conforming an offline 23.98fps Avid cut to a 25fps online Resolve session.

Rundown Management

Add individual segment durations across a 60-minute live show to verify the total runtime matches the allocated broadcast slot.

Archive & Logging

Find the exact frame address of a cue point by adding a known timecode offset to a clip's start timecode during media logging.

Bookmark this calculator

Use it for every production rundown, EDL, or frame rate conversion.

What is the SMPTE Timecode Calculator?

A precision math utility for video editors and technical directors to perform arithmetic on SMPTE timecode stamps across all standard broadcast frame rates, including drop-frame logic.

This utility was engineered to eliminate the guesswork from high-pressure broadcast environments. Whether you are managing multi-camera sync or complex IP networking, precision measurements ensure that the technical infrastructure stays stable throughout the duration of the event.

Real-World Use Cases

Indispensable during post-production conforming, calculation of total program runtime (TRT), or when calculating offsets for EBU/SMPTE metadata synchronization in large-scale multi-camera edits.

Understanding these variables is critical for minimizing system-wide latency and avoiding technical debt in live productions. This tool provides instant validation of your technical specifications before you even power on a single piece of hardware.

Technical Methodology

Converts total timecode into absolute frame counts before performing math operations, then reconverts the result based on the target frame rate standard (23.98, 29.97, 59.94, etc.).

Our formulas are based on established SMPTE and EBU standards. By calculating these values theoretically, engineering teams can design predictable workflows and set clear expectations for clients regarding production quality and protocol limitations.

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