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USEFUL TOOLS FOR F/J STUDENTS

OPT Days Remaining Calculator

Use this tool to calculate how much post-completion OPT you have left if you have been granted any pre-completion OPT authorizations by USCIS.

Enter the start and end dates printed on each category C03A / (c)(3)(A) EAD (Form I-766). The calculation concerns the period authorized, including days you did not work; include only authorizations at the same education level.

This calculator starts with 365 days. USCIS describes the benefit as up to 12 months; your DSO and USCIS determine the actual authorization. Both dates are included, full-time counts 1:1, and part-time counts at half the rate.
Counting rules & official sources

Each row must end after its start and before its one-year anniversary. Overlapping periods are rejected to prevent double counting. This is an input limit for this tool; ask your DSO about an authorization that does not fit.

The result retains any half-day produced by the calculation. It does not determine how USCIS will treat that fraction or assess other eligibility restrictions, prior post-completion OPT, STEM OPT extensions, or filing windows.

These results are planning estimates. Your entries remain in this page’s memory and are discarded when you leave or reload; they are not uploaded and require no account. The calculators operate separately from the fixed-duration rule simulation.