If you are planning interviews for a thesis or a research project, transcription time is one of the most important factors in your schedule. Many students underestimate it. This guide summarizes what universities say about the time needed, explains what makes transcription faster or slower and shows how to plan realistically.
Typical time for manual transcription
University guidance gives similar estimates for typing a transcript by hand:
- The University of Bath Library notes that "it can take 4-7 hours to transcribe an hour of audio" (source).
- KU Leuven's research data management guidance states: "1 hour of audio interview takes about 4-8 hours to transcribe" (source).
- The Claremont Colleges Library writes that "by some estimates, one hour of audio or video can take 4-9 hours to transcribe," depending on the subject, number of speakers and audio quality (source).
These figures are estimates, not fixed values. Your own time can be shorter or longer depending on your typing speed, your experience and the factors described below.
What affects how long transcription takes
Audio quality. Background noise, a distant microphone or a weak phone connection make it harder to understand what was said. You will need to replay passages more often, and you may have to mark more passages as inaudible.
Number of speakers. A one-on-one interview is usually faster to transcribe than a group interview or focus group. With several speakers, people interrupt each other, talk at the same time and need to be identified correctly.
Speaking style. Fast speech, strong accents, dialect and specialized terminology all take extra time.
Your transcription rules. A clean verbatim transcript, which leaves out filler words, is usually quicker to produce than a detailed verbatim transcript that records every pause, repetition and false start. Adding timestamps and anonymizing names also adds time.
Review. A transcript is not finished after the first pass. Listening to the recording again to check your text takes additional time, but it is necessary for reliable results.
Saving time with automatic transcription and careful review
Automatic transcription software can produce a first draft of your interview, so you do not have to type every word yourself. Your main task then changes from typing to checking and correcting.
This step remains important. Automatic transcripts can contain errors, especially with names, technical terms, unclear audio and overlapping speech. You should always listen to the full recording, correct the text, check speaker labels and apply your transcription rules. How much time you save depends on your recordings and on how detailed your rules are.
Planning your time: an example calculation
Use the university estimates above to calculate your own workload. Suppose you plan ten interviews of about one hour each:
- KU Leuven estimates that one hour of interview audio takes about 4 to 8 hours to transcribe. Applied to ten hours of interviews, that would be roughly 40 to 80 hours of typing.
- With automatic transcription, you still need time to review each transcript against the recording. Plan this review time carefully, and run a test with your first interview to see how long it takes you.
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Calculator: how long will typing take you?
Enter the total length of your recordings. The calculator shows the ranges from the three universities above, rounded to the nearest half hour. If you know your own typing time, you can add it too. The calculator runs only in your browser and sends nothing.
Sources: University of Bath, KU Leuven, Claremont Colleges Library (accessed Oct. 29, 2026). These figures are estimates; your own time may differ.
Tips for a realistic schedule
- Transcribe each interview soon after you conduct it, while the conversation is still fresh in your memory.
- Run your first interview as a test and measure how long transcription and review take you.
- Build buffer time into your schedule for poor recordings and unexpected delays.
- Decide on your transcription rules before you start, so you do not need to rework finished transcripts.
How Stillscript can help
Stillscript creates an automatic first draft of your interview, which you then review and correct. Your recordings and transcripts stay on your device.