Dental Lost Revenue Calculator
See what unfilled cancellations may be costing you
Adjust every assumption to match your practice. Results update instantly, with no email required.
Illustrative estimate
Potential extra booked revenue £11,923 a year; estimated net benefit £7,154.
- Annual appointment value at risk
- £39,744
- 7.2 unfilled slots a week · £3,312 a month
- Potential extra booked revenue
- £11,923
- If 30% of unfilled slots were rebooked · £994 a month
- Estimated contribution
- £7,154
- At 60% incremental margin · £596 a month
- Estimated net financial benefit
- £7,154
- No software fee entered, so this equals estimated contribution.
Important: these figures are hypothetical and based entirely on the assumptions you enter. They are not a forecast, quotation or guarantee of results. Booked revenue is not profit: appointments must actually be completed and paid for, and staff, materials, lab and other costs must be accounted for. No clinical outcome is implied.
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How the estimate is worked out
- Weekly unfilled slots = cancellations per week × (1 − % already refilled)
- Annual value at risk = weekly unfilled × average appointment value × working weeks
- Potential extra booked revenue = value at risk × assumed extra recovery %
- Estimated contribution = extra booked revenue × incremental contribution margin %
- Estimated net benefit = estimated contribution − (optional monthly fee × 12)
The value-to-fee ratio and months-to-cover figure only appear when you enter a fee above £0 and the estimated contribution is positive.