Donor Retention Calculator

Calculate donor retention rate, lifetime value, churn impact, and revenue gains from improved retention.

Donors at Start of Year

Donors Retained

Average Gift ($)

Acquisition Cost per Donor ($)

Tab to move between fields

Retention Rate

45%

Donor Lifetime Value

$273

Churn Rate55%

Expected Lifetime (years)1.82

Retained Revenue$33,750

Lost Revenue$41,250

Replacement Cost$13,750

Revenue Gain (+10% Retention)$7,500

Net Impact-55,000

How to Use This Calculator

Enter Donors at Start of Year, Donors Retained, and Average Gift ($).
Set Acquisition Cost per Donor ($).
Review Retention Rate (%) and Donor Lifetime Value ($).
Use Churn Rate (%) and Expected Lifetime (years) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

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