Retention

The calculator uses the numbers you enter. With 180 days, 365 max days the result is Retention compliance: 100%. This is not a retention policy.

This is not a retention policy. API exposure is on API exposure.

Input data

Results

Enter data and click Calculate.

How it works

Retention in this calculator is planned days versus the allowed maximum. With 180 days, 365 max days the result is Retention compliance: 100%.

compliance = 100 if days ≤ max, else 100 × max / days. The formula uses days and maximum.

Retention compliance: 100% is not a retention policy. Another set of numbers gives Retention compliance: 91.3%, and a further set gives Retention compliance: 100%. Empty optional fields do not change the result.

API exposure answers a different question. Fairness gap does too. Here 180 days, 365 max days leave Retention compliance: 100%.

Type 180 days, 365 max days and click Calculate. Two more ready sets sit under the form: Retention compliance: 91.3% and Retention compliance: 100%.

Other numbers on the same labels move the result. The first example gives Retention compliance: 100%.

Formula

compliance = 100 if days ≤ max, else 100 × max / days.

How to use

  1. Type 180 days, 365 max days.
  2. Leave optional fields empty if you do not want them in the result.
  3. Click Calculate. This set shows Retention compliance: 100%.
  4. The second example under the result is Retention compliance: 91.3%, the third Retention compliance: 100%.
  5. This is not a retention policy.

Retention = Retention compliance: 100%

The calculator uses the numbers you enter. With 180 days, 365 max days the result is Retention compliance: 100%. This is not a retention policy.

Retention
Retention is this calculator's result. The first example is Retention compliance: 100%.
days
The formula includes days. The second example gives Retention compliance: 91.3%.
maximum
The formula includes maximum. The second example gives Retention compliance: 91.3%.

Examples

Example 1

  • 180 days
  • 365 max days

Retention compliance: 100%

The calculator uses the numbers you enter. With 180 days, 365 max days the result is Retention compliance: 100%. This is not a retention policy.

Example 2

  • 400 days
  • 365 max days

Retention compliance: 91.3%

With 400 days, 365 max days the result is Retention compliance: 91.3%.

Example 3

  • 90 days
  • 90 max days

Retention compliance: 100%

With 90 days, 90 max days the result is Retention compliance: 100%.

Related calculators

API exposure

API exposure: score = mean(map15) × 100.

Use calculator →

Fairness gap

Fairness gap: gap = |group A − group B|.

Use calculator →

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Common questions

What do you get from 180 days, 365 max days?

Retention compliance: 100%. This is not a retention policy.

What about the second example?

Retention compliance: 91.3%.

What about the third example?

Retention compliance: 100%.

Is Retention compliance: 100% a retention policy?

No. It is the result from the numbers you enter.

Do empty fields change Retention compliance: 100%?

No. Empty optional fields do not change the result.

How is this different from API exposure?

That calculator answers another question. Here Retention stays at Retention compliance: 100%.

Does a comma in the number work?

Yes. A comma and a dot mean the same in a number field.

Is the result a diagnosis or official opinion?

No. The result comes from the numbers you enter. a retention policy sits outside this calculator.

Do 400 days, 365 max days give Retention compliance: 91.3%?

Yes. That is the second example under the form.

How is retention compliance calculated?

When planned days are not above the maximum, the result is 100%. When days are larger, the result is 100 times the maximum divided by days. In the first example the result is Retention compliance: 100%.

Does a shorter retention than the limit raise the result above 100?

No. When days are not above the maximum, the result stays at 100. The calculator does not add a bonus for a shorter period.

Is this a retention policy?

No. The result is a ratio of two day counts you enter. The calculator is not a retention policy and does not delete data.

Which units are the fields in?

Both fields are in days: planned retention and the allowed maximum.

Does 100% mean GDPR compliance?

No. One hundred percent only means the entered days do not exceed the entered maximum. The calculator does not check the lawful basis for storage.

Knowledge sources

The terms come from the GDPR. The calculator result is a sketch index, not a fine.

Page updated in 2026.