Published by Clinic Admin Tools UK · Independent practice-admin content · Not clinical advice
No-show percentage calculator
Calculate your no-show rate from appointments scheduled and patients who did not attend.
Introduction
No-show rate is broadly defined as DNA appointments divided by scheduled appointments in a period. Consistent definitions let you track the effect of reminders or deposit policies.
Some clinics exclude certain clinics types—document your rule and stick to it.
Calculator
Adjust the fields below; results update as you type. All processing happens in your browser—we do not receive the numbers you enter.
Results
Context and how to use this
DNA rate is DNA count divided by scheduled appointments in a window. Definitions vary on same-day cancels—document yours.
Trend analysis beats one-off percentages for spotting reminder or deposit experiments.
Common questions
- Telehealth DNAs?
- Include if they consume a slot you could have sold; exclude if your policy treats them differently.
- Is this clinically sensitive?
- It is an operational metric, not patient commentary. Aggregate reporting only.
Related tools
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