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Immigration, Visa & Travel DocumentsGenerated accuracy model review: 2026-05-06
OPT Unemployment Days Calculator accuracy and testing
This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.
Formula source
- Used unemployment days = inclusive days across entered unemployment periods. Remaining unemployment days = unemployment day limit - used unemployment days.
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Unemployment 1 Start Date: 2026-01-15
- Unemployment 1 End Date: 2026-01-26
- Unemployment 2 Start Date: 2026-03-01
- Unemployment 2 End Date: 2026-03-09
- Unemployment 3 Start Date: 2026-06-01
- Unemployment 3 End Date: 2026-06-01
- Unemployment Day Limit: 90 days
Expected outputs
- Estimated Remaining Unemployment Days: 68 days
- Estimated Used Unemployment Days: 22 days
- Planning Status: Within entered planning limit
Known limitations
- This calculator does not determine SEVIS status, OPT validity, STEM OPT rules, cap-gap rules, volunteer eligibility, reporting compliance, or USCIS action.
Assumptions
- The calculator counts each entered unemployment period inclusively.
- The unemployment limit is entered by the user and defaults to 90 days for planning.
- This is a planning estimate only, not legal advice, not an official immigration, travel, school DSO, USCIS, CBP, consulate, employer, or government determination.
Unit handling
- Unemployment 1 Start Date accepts calendar dates.
- Unemployment 1 End Date accepts calendar dates.
- Unemployment 2 Start Date accepts calendar dates.
- Unemployment 2 End Date accepts calendar dates.
- Unemployment 3 Start Date accepts calendar dates.
- Unemployment 3 End Date accepts calendar dates.
- Unemployment Day Limit accepts values in days.
- Estimated Remaining Unemployment Days is displayed in days.
- Estimated Used Unemployment Days is displayed in days.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
- Input precision follows configured step values where provided.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current opt-unemployment-days-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for OPT Unemployment Days Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.