16 free calculators for the “exactly which day” questions in the immigration process: the earliest date you can file, when your status expires, how a waiting period is counted. Each tool cites the rule it is based on, so you can check the result yourself.
These tools calculate dates and deadlines and are not legal advice. Individual cases have exceptions; if you are unsure, consult an immigration attorney.
The OPT timeline: when you can file, how the STEM extension is calculated, and how long F-1 status carries you after an H-1B selection.
Complete OPT timeline with STEM extension and H-1B cap-gap
OpenFind your OPT application window based on graduation date
OpenCalculate your STEM OPT extension timeline and deadlines
OpenCalculate your F-1 status extension during H-1B cap-gap period
OpenH-1B and L-1 time limits: how the six-year cap is counted, and whether you can keep working while an extension is pending.
How long until your priority date is current, whether you can file an I-485, your child's CSPA age, how long each PERM stage takes, and the risks of changing jobs or traveling while your case is pending.
Official links for checking case status, plus what each status message means
OpenTrack your green card application milestones and progress
OpenEstimate how long until your priority date becomes current
OpenEstimate your PERM labor certification processing timeline
OpenCalculate child's age under Child Status Protection Act
OpenCheck if you can file your I-485 adjustment of status
OpenCheck if you can change jobs while I-485 is pending
OpenAssess travel risks during pending immigration applications
OpenHow the five-year or three-year waiting period is counted, and whether you have enough days of physical presence.
