Busy lash techs usually plan around hands-on service minutes only. The reality is every appointment also includes setup, notes, and reset time that affects the rest of your day.
This free calculator helps you set realistic booking slots so your schedule stays calm and profitable.
Calculate your booking slot length
Lash Appointment Slot Length Calculator
Enter the full appointment workflow in minutes to get a realistic booking slot that protects your schedule.
Step 1
Step 2
Timing Inputs (minutes)
Enter the core service workflow first. Cushion is set in Step 3.
The active time spent applying or working on lashes.
Greeting the client and confirming style.
Lash bath, setup, and getting everything ready.
Final pass, symmetry check, and quick touch-ups.
Payment, rebooking, and client notes.
Disinfection, reset, and prep for the next client.
Step 3
Extra protection for common overrun minutes.
Step 4
Current total preview: 2 hours 25 minutes (145 minutes)
What appointment slot length means
Appointment slot length is the total time a client can book on your calendar for one service. It is bigger than pure lashing time because real appointments include workflow steps before and after application.
Lash techs often run behind when they forget to include consultation, prep, checkout, cleanup, and normal delays. A realistic slot gives you room to deliver quality without rushing the next client.
When your slots are accurate, your day stays smoother, client expectations stay clear, and your earning capacity is easier to predict.
Bookable slot formula
Formula
Bookable Slot Length = service time + consult + prep + finishing + checkout + cleanup + cushion
Use minutes for each workflow step, then combine them to set a realistic service duration in your booking calendar.
Typical timing guide
Use these ranges as starting points, then adjust with your own service pace and workflow.
| Service | Typical Slot Length |
|---|---|
| Classic Set | 2h - 2h30 |
| Hybrid Set | 2h30 |
| Volume Set | 3h |
| Fill | 1h - 1h30 |