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Calcimator

Church Attendance Tracker Calculator

Track congregation growth by comparing current and prior weekly attendance averages. Projects future attendance and estimates weeks to reach your target.

Inputs

Results

Net change

10

Annualized growth %

11.1%

Current average100
Projected in 12 months112
Weeks to target190
Retention estimate %100%
How to Use This Calculator
  1. Enter the Current Weekly Average and Prior Period Weekly Average attendance.
  2. Set the number of Weeks in the Measurement Period.
  3. Input your Target Weekly Attendance goal.
  4. Review Net Change, Annualized Growth %, and Weeks to Target.
  5. Use Projected Attendance in 12 Months and Retention Estimate % to guide outreach planning.

How the result changes with Current weekly average

Current weekly averageNet changeAnnualized growth %
10,0019,91111,012.2%
35,00134,91138,790%
65,00064,91072,122.2%
90,00089,91099,900%

What each input means

Current weekly average
Average weekly attendance for the current measurement period.
Prior period weekly average
Average weekly attendance from the previous measurement period for comparison.
Weeks in measurement period
Number of weeks over which attendance was tracked.
Target weekly attendance
Your goal for average weekly attendance.

What each result means

Current average
Your current weekly attendance average.
Net change
Difference between current and prior period averages.
Annualized growth %
Growth rate extrapolated to a full year.
Projected in 12 months
Estimated weekly attendance one year from now at current growth rate.
Weeks to target
Estimated weeks to reach target attendance. -1 means declining/flat trend.
Retention estimate %
Estimated visitor-to-regular retention rate based on growth patterns.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Current weekly average = 100, Prior period weekly average = 90, Weeks in measurement period = 52, Target weekly attendance = 150 = 4 input(s) provided
  2. Calculate Net change
    Net change = currentWeeklyAvg - priorWeeklyAvg
    10 = 10
  3. Calculate Annualized growth %
    Annualized growth % = rawGrowthRate * (52 / weeksMeasured) * 100
    11.1 = 11.1%
  4. Calculate Current average
    Current average
    100 = 100
  5. Calculate Projected in 12 months
    Projected in 12 months
    112 = 112

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