Password Rotation Schedule
Free Password Rotation Schedule calculator with clear step-by-step results.
About Password Rotation Schedule
Forced rotation has an administrative cost and can hurt security.
Formula
Formula
Hours = users × rotations × minutes ÷ 60
Worked example
With the default values below, Password Rotation Schedule returns Rotations per Year of 4.1. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Usersminimum 1
- 200
- Rotation period (days)minimum 1
- 90
- Minutes per rotationminimum 1
- 3
Results
- Rotations per Year
- 4.1
- Admin Time (hours/year)
- 40.6
- Note
- NIST recommends against forced frequent rotation
Step by step
- 1Values used
- 2Formula
- 3Rotations per Year= 4.1
- 4Admin Time (hours/year)= 40.6
- 5Note= NIST recommends against forced frequent rotation
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How does this calculator work?
Forced rotation has an administrative cost and can hurt security.
Why does this matter?
NIST now favours long passphrases over frequent rotation.
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