It can take as little as a year for immediate relatives of U.S. citizens (spouses, parents, minor children).

It can take 5–15 years for certain family categories (like siblings of U.S. citizens) due to visa backlogs.

Employment-based processing varies: some take 1–3 years, others longer depending on quota limits.

There’s no single answer. Some people get their Green Card in under a year, while others wait more than 5 years. It depends on whether it’s family-based, employment-based, or through asylum, and also your home country.