Free business calculator

Booking Duration Consistency Calculator

Measure how steady or spread out your real booking times are.

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PDF report included

Typical booking spread

5.5min

80% of entered bookings fit inside the current 60-minute schedule.

Average duration: 55.6min
Middle duration: 54.5min
Variation ratio: 9.9%

Transparent breakdown

Bookings: 10
Fit scheduled time: 80%
Average buffer: 4.4min

Booking duration summary
Measure	Minutes
Shortest	49
Lower quartile	52.3
Median	54.5
Upper quartile	56.8
Longest	68

Use the result well

A clear answer, with the assumptions visible

These recommendations turn the result into an operational next step without hiding the inputs behind a score.

1
Separate different services before comparing duration.
2
Check long visits for a real reason instead of trimming them blindly.
3
Leave room for cleanup, notes, and client transitions.

How this tool works

Use simple-statistics to calculate the average, median, and sample standard deviation.
Divide spread by the average for a consistency ratio.
Compare the current scheduled time with the measured history.

Build it in Bookify

Use the pattern in your schedule

Keep staff, clients, and bookings together in Bookify.

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